!-------------------------------------------------------------------------------------------------- !> @author Franz Roters, Max-Planck-Institut für Eisenforschung GmbH !> @author Philip Eisenlohr, Max-Planck-Institut für Eisenforschung GmbH !> @author Pratheek Shanthraj, Max-Planck-Institut für Eisenforschung GmbH !> @author Martin Diehl, Max-Planck-Institut für Eisenforschung GmbH !> @brief contains lattice structure definitions including Schmid matrices for slip, twin, trans, ! and cleavage as well as interaction among the various systems !-------------------------------------------------------------------------------------------------- module lattice use prec use IO use config use math use rotations implicit none private !-------------------------------------------------------------------------------------------------- ! face centered cubic integer, dimension(2), parameter :: & FCC_NSLIPSYSTEM = [12, 6] !< # of slip systems per family for fcc integer, dimension(1), parameter :: & FCC_NTWINSYSTEM = [12] !< # of twin systems per family for fcc integer, dimension(1), parameter :: & FCC_NTRANSSYSTEM = [12] !< # of transformation systems per family for fcc integer, dimension(1), parameter :: & FCC_NCLEAVAGESYSTEM = [3] !< # of cleavage systems per family for fcc integer, parameter :: & #ifndef __PGI FCC_NSLIP = sum(FCC_NSLIPSYSTEM), & !< total # of slip systems for fcc FCC_NTWIN = sum(FCC_NTWINSYSTEM), & !< total # of twin systems for fcc FCC_NTRANS = sum(FCC_NTRANSSYSTEM), & !< total # of transformation systems for fcc FCC_NCLEAVAGE = sum(FCC_NCLEAVAGESYSTEM) !< total # of cleavage systems for fcc #else FCC_NSLIP = 18, & FCC_NTWIN = 12, & FCC_NTRANS = 12, & FCC_NCLEAVAGE = 3 #endif real(pReal), dimension(3+3,FCC_NSLIP), parameter :: & FCC_SYSTEMSLIP = reshape(real([& ! Slip direction Plane normal ! SCHMID-BOAS notation 0, 1,-1, 1, 1, 1, & ! B2 -1, 0, 1, 1, 1, 1, & ! B4 1,-1, 0, 1, 1, 1, & ! B5 0,-1,-1, -1,-1, 1, & ! C1 1, 0, 1, -1,-1, 1, & ! C3 -1, 1, 0, -1,-1, 1, & ! C5 0,-1, 1, 1,-1,-1, & ! A2 -1, 0,-1, 1,-1,-1, & ! A3 1, 1, 0, 1,-1,-1, & ! A6 0, 1, 1, -1, 1,-1, & ! D1 1, 0,-1, -1, 1,-1, & ! D4 -1,-1, 0, -1, 1,-1, & ! D6 ! Slip system <110>{110} 1, 1, 0, 1,-1, 0, & 1,-1, 0, 1, 1, 0, & 1, 0, 1, 1, 0,-1, & 1, 0,-1, 1, 0, 1, & 0, 1, 1, 0, 1,-1, & 0, 1,-1, 0, 1, 1 & ],pReal),shape(FCC_SYSTEMSLIP)) !< Slip system <110>{111} directions. Sorted according to Eisenlohr & Hantcherli real(pReal), dimension(3+3,FCC_NTWIN), parameter :: & FCC_SYSTEMTWIN = reshape(real( [& -2, 1, 1, 1, 1, 1, & 1,-2, 1, 1, 1, 1, & 1, 1,-2, 1, 1, 1, & 2,-1, 1, -1,-1, 1, & -1, 2, 1, -1,-1, 1, & -1,-1,-2, -1,-1, 1, & -2,-1,-1, 1,-1,-1, & 1, 2,-1, 1,-1,-1, & 1,-1, 2, 1,-1,-1, & 2, 1,-1, -1, 1,-1, & -1,-2,-1, -1, 1,-1, & -1, 1, 2, -1, 1,-1 & ],pReal),shape(FCC_SYSTEMTWIN)) !< Twin system <112>{111} directions. Sorted according to Eisenlohr & Hantcherli integer, dimension(2,FCC_NTWIN), parameter, public :: & lattice_FCC_TWINNUCLEATIONSLIPPAIR = reshape( [& 2,3, & 1,3, & 1,2, & 5,6, & 4,6, & 4,5, & 8,9, & 7,9, & 7,8, & 11,12, & 10,12, & 10,11 & ],shape(lattice_FCC_TWINNUCLEATIONSLIPPAIR)) real(pReal), dimension(3+3,FCC_NCLEAVAGE), parameter :: & FCC_SYSTEMCLEAVAGE = reshape(real([& ! Cleavage direction Plane normal 0, 1, 0, 1, 0, 0, & 0, 0, 1, 0, 1, 0, & 1, 0, 0, 0, 0, 1 & ],pReal),shape(FCC_SYSTEMCLEAVAGE)) !-------------------------------------------------------------------------------------------------- ! body centered cubic integer, dimension(2), parameter :: & BCC_NSLIPSYSTEM = [12, 12] !< # of slip systems per family for bcc integer, dimension(1), parameter :: & BCC_NTWINSYSTEM = [12] !< # of twin systems per family for bcc integer, dimension(1), parameter :: & BCC_NCLEAVAGESYSTEM = [3] !< # of cleavage systems per family for bcc integer, parameter :: & #ifndef __PGI BCC_NSLIP = sum(BCC_NSLIPSYSTEM), & !< total # of slip systems for bcc BCC_NTWIN = sum(BCC_NTWINSYSTEM), & !< total # of twin systems for bcc BCC_NCLEAVAGE = sum(BCC_NCLEAVAGESYSTEM) !< total # of cleavage systems for bcc #else BCC_NSLIP = 24, & BCC_NTWIN = 12, & BCC_NCLEAVAGE = 3 #endif real(pReal), dimension(3+3,BCC_NSLIP), parameter :: & BCC_SYSTEMSLIP = reshape(real([& ! Slip direction Plane normal ! Slip system <111>{110} 1,-1, 1, 0, 1, 1, & -1,-1, 1, 0, 1, 1, & 1, 1, 1, 0,-1, 1, & -1, 1, 1, 0,-1, 1, & -1, 1, 1, 1, 0, 1, & -1,-1, 1, 1, 0, 1, & 1, 1, 1, -1, 0, 1, & 1,-1, 1, -1, 0, 1, & -1, 1, 1, 1, 1, 0, & -1, 1,-1, 1, 1, 0, & 1, 1, 1, -1, 1, 0, & 1, 1,-1, -1, 1, 0, & ! Slip system <111>{112} -1, 1, 1, 2, 1, 1, & 1, 1, 1, -2, 1, 1, & 1, 1,-1, 2,-1, 1, & 1,-1, 1, 2, 1,-1, & 1,-1, 1, 1, 2, 1, & 1, 1,-1, -1, 2, 1, & 1, 1, 1, 1,-2, 1, & -1, 1, 1, 1, 2,-1, & 1, 1,-1, 1, 1, 2, & 1,-1, 1, -1, 1, 2, & -1, 1, 1, 1,-1, 2, & 1, 1, 1, 1, 1,-2 & ],pReal),shape(BCC_SYSTEMSLIP)) real(pReal), dimension(3+3,BCC_NTWIN), parameter :: & BCC_SYSTEMTWIN = reshape(real([& ! Twin system <111>{112} -1, 1, 1, 2, 1, 1, & 1, 1, 1, -2, 1, 1, & 1, 1,-1, 2,-1, 1, & 1,-1, 1, 2, 1,-1, & 1,-1, 1, 1, 2, 1, & 1, 1,-1, -1, 2, 1, & 1, 1, 1, 1,-2, 1, & -1, 1, 1, 1, 2,-1, & 1, 1,-1, 1, 1, 2, & 1,-1, 1, -1, 1, 2, & -1, 1, 1, 1,-1, 2, & 1, 1, 1, 1, 1,-2 & ],pReal),shape(BCC_SYSTEMTWIN)) real(pReal), dimension(3+3,BCC_NCLEAVAGE), parameter :: & BCC_SYSTEMCLEAVAGE = reshape(real([& ! Cleavage direction Plane normal 0, 1, 0, 1, 0, 0, & 0, 0, 1, 0, 1, 0, & 1, 0, 0, 0, 0, 1 & ],pReal),shape(BCC_SYSTEMCLEAVAGE)) !-------------------------------------------------------------------------------------------------- ! hexagonal integer, dimension(6), parameter :: & HEX_NSLIPSYSTEM = [3, 3, 3, 6, 12, 6] !< # of slip systems per family for hex integer, dimension(4), parameter :: & HEX_NTWINSYSTEM = [6, 6, 6, 6] !< # of slip systems per family for hex integer, parameter :: & #ifndef __PGI HEX_NSLIP = sum(HEX_NSLIPSYSTEM), & !< total # of slip systems for hex HEX_NTWIN = sum(HEX_NTWINSYSTEM) !< total # of twin systems for hex #else HEX_NSLIP = 33, & HEX_NTWIN = 24 #endif real(pReal), dimension(4+4,HEX_NSLIP), parameter :: & HEX_SYSTEMSLIP = reshape(real([& ! Slip direction Plane normal ! Basal systems <-1-1.0>{00.1} (independent of c/a-ratio, Bravais notation (4 coordinate base)) 2, -1, -1, 0, 0, 0, 0, 1, & -1, 2, -1, 0, 0, 0, 0, 1, & -1, -1, 2, 0, 0, 0, 0, 1, & ! 1st type prismatic systems <-1-1.0>{1-1.0} (independent of c/a-ratio) 2, -1, -1, 0, 0, 1, -1, 0, & -1, 2, -1, 0, -1, 0, 1, 0, & -1, -1, 2, 0, 1, -1, 0, 0, & ! 2nd type prismatic systems <-11.0>{11.0} -- a slip; plane normals independent of c/a-ratio -1, 1, 0, 0, 1, 1, -2, 0, & 0, -1, 1, 0, -2, 1, 1, 0, & 1, 0, -1, 0, 1, -2, 1, 0, & ! 1st type 1st order pyramidal systems <-1-1.0>{-11.1} -- plane normals depend on the c/a-ratio -1, 2, -1, 0, 1, 0, -1, 1, & -2, 1, 1, 0, 0, 1, -1, 1, & -1, -1, 2, 0, -1, 1, 0, 1, & 1, -2, 1, 0, -1, 0, 1, 1, & 2, -1, -1, 0, 0, -1, 1, 1, & 1, 1, -2, 0, 1, -1, 0, 1, & ! pyramidal system: c+a slip <11.3>{-10.1} -- plane normals depend on the c/a-ratio -2, 1, 1, 3, 1, 0, -1, 1, & -1, -1, 2, 3, 1, 0, -1, 1, & -1, -1, 2, 3, 0, 1, -1, 1, & 1, -2, 1, 3, 0, 1, -1, 1, & 1, -2, 1, 3, -1, 1, 0, 1, & 2, -1, -1, 3, -1, 1, 0, 1, & 2, -1, -1, 3, -1, 0, 1, 1, & 1, 1, -2, 3, -1, 0, 1, 1, & 1, 1, -2, 3, 0, -1, 1, 1, & -1, 2, -1, 3, 0, -1, 1, 1, & -1, 2, -1, 3, 1, -1, 0, 1, & -2, 1, 1, 3, 1, -1, 0, 1, & ! pyramidal system: c+a slip <11.3>{-1-1.2} -- as for hexagonal ice (Castelnau et al. 1996, similar to twin system found below) -1, -1, 2, 3, 1, 1, -2, 2, & ! <11.3>{-1-1.2} shear = 2((c/a)^2-2)/(3 c/a) 1, -2, 1, 3, -1, 2, -1, 2, & 2, -1, -1, 3, -2, 1, 1, 2, & 1, 1, -2, 3, -1, -1, 2, 2, & -1, 2, -1, 3, 1, -2, 1, 2, & -2, 1, 1, 3, 2, -1, -1, 2 & ],pReal),shape(HEX_SYSTEMSLIP)) !< slip systems for hex, sorted by P. Eisenlohr CCW around starting next to a_1 axis real(pReal), dimension(4+4,HEX_NTWIN), parameter :: & HEX_SYSTEMTWIN = reshape(real([& ! Compression or Tension = f(twinning shear=f(c/a)) for each metal ! (according to Yoo 1981) -1, 0, 1, 1, 1, 0, -1, 2, & ! <-10.1>{10.2} shear = (3-(c/a)^2)/(sqrt(3) c/a) 0, -1, 1, 1, 0, 1, -1, 2, & 1, -1, 0, 1, -1, 1, 0, 2, & 1, 0, -1, 1, -1, 0, 1, 2, & 0, 1, -1, 1, 0, -1, 1, 2, & -1, 1, 0, 1, 1, -1, 0, 2, & ! -1, -1, 2, 6, 1, 1, -2, 1, & ! <11.6>{-1-1.1} shear = 1/(c/a) 1, -2, 1, 6, -1, 2, -1, 1, & 2, -1, -1, 6, -2, 1, 1, 1, & 1, 1, -2, 6, -1, -1, 2, 1, & -1, 2, -1, 6, 1, -2, 1, 1, & -2, 1, 1, 6, 2, -1, -1, 1, & ! 1, 0, -1, -2, 1, 0, -1, 1, & ! <10.-2>{10.1} shear = (4(c/a)^2-9)/(4 sqrt(3) c/a) 0, 1, -1, -2, 0, 1, -1, 1, & -1, 1, 0, -2, -1, 1, 0, 1, & -1, 0, 1, -2, -1, 0, 1, 1, & 0, -1, 1, -2, 0, -1, 1, 1, & 1, -1, 0, -2, 1, -1, 0, 1, & ! 1, 1, -2, -3, 1, 1, -2, 2, & ! <11.-3>{11.2} shear = 2((c/a)^2-2)/(3 c/a) -1, 2, -1, -3, -1, 2, -1, 2, & -2, 1, 1, -3, -2, 1, 1, 2, & -1, -1, 2, -3, -1, -1, 2, 2, & 1, -2, 1, -3, 1, -2, 1, 2, & 2, -1, -1, -3, 2, -1, -1, 2 & ],pReal),shape(HEX_SYSTEMTWIN)) !< twin systems for hex, sorted by P. Eisenlohr CCW around starting next to a_1 axis !-------------------------------------------------------------------------------------------------- ! body centered tetragonal integer, dimension(13), parameter :: & BCT_NSLIPSYSTEM = [2, 2, 2, 4, 2, 4, 2, 2, 4, 8, 4, 8, 8 ] !< # of slip systems per family for bct (Sn) Bieler J. Electr Mater 2009 integer, parameter :: & #ifndef __PGI BCT_NSLIP = sum(BCT_NSLIPSYSTEM) !< total # of slip systems for bct #else BCT_NSLIP = 52 #endif real(pReal), dimension(3+3,BCT_NSLIP), parameter :: & BCT_SYSTEMSLIP = reshape(real([& ! Slip direction Plane normal ! Slip family 1 {100)<001] (Bravais notation {hkl) @brief Module initialization !-------------------------------------------------------------------------------------------------- subroutine lattice_init integer :: Nphases, p,i character(len=pStringLen) :: structure = '' write(6,'(/,a)') ' <<<+- lattice init -+>>>'; flush(6) Nphases = size(config_phase) allocate(lattice_structure(Nphases),source = lattice_UNDEFINED_ID) allocate(lattice_C66(6,6,Nphases), source=0.0_pReal) allocate(lattice_thermalConductivity (3,3,Nphases), source=0.0_pReal) allocate(lattice_damageDiffusion (3,3,Nphases), source=0.0_pReal) allocate(lattice_damageMobility,& lattice_massDensity,lattice_specificHeat, & lattice_mu, lattice_nu,& source=[(0.0_pReal,i=1,Nphases)]) do p = 1, size(config_phase) lattice_C66(1,1,p) = config_phase(p)%getFloat('c11') lattice_C66(1,2,p) = config_phase(p)%getFloat('c12') lattice_C66(1,3,p) = config_phase(p)%getFloat('c13',defaultVal=0.0_pReal) lattice_C66(2,2,p) = config_phase(p)%getFloat('c22',defaultVal=0.0_pReal) lattice_C66(2,3,p) = config_phase(p)%getFloat('c23',defaultVal=0.0_pReal) lattice_C66(3,3,p) = config_phase(p)%getFloat('c33',defaultVal=0.0_pReal) lattice_C66(4,4,p) = config_phase(p)%getFloat('c44',defaultVal=0.0_pReal) lattice_C66(5,5,p) = config_phase(p)%getFloat('c55',defaultVal=0.0_pReal) lattice_C66(6,6,p) = config_phase(p)%getFloat('c66',defaultVal=0.0_pReal) structure = config_phase(p)%getString('lattice_structure') select case(trim(structure)) case('iso') lattice_structure(p) = lattice_ISO_ID case('fcc') lattice_structure(p) = lattice_FCC_ID case('bcc') lattice_structure(p) = lattice_BCC_ID case('hex') lattice_structure(p) = lattice_HEX_ID case('bct') lattice_structure(p) = lattice_BCT_ID case('ort') lattice_structure(p) = lattice_ORT_ID case default call IO_error(130,ext_msg='lattice_init: '//trim(structure)) end select lattice_C66(1:6,1:6,p) = applyLatticeSymmetryC66(lattice_C66(1:6,1:6,p),structure) ! (C11iso-C12iso)/2 with C11iso=(3*C11+2*C12+4*C44)/5 and C12iso=(C11+4*C12-2*C44)/5 lattice_mu(p) = 0.2_pReal *(lattice_C66(1,1,p) -lattice_C66(1,2,p) +3.0_pReal*lattice_C66(4,4,p)) ! C12iso/(C11iso+C12iso) with C11iso=(3*C11+2*C12+4*C44)/5 and C12iso=(C11+4*C12-2*C44)/5 lattice_nu(p) = ( lattice_C66(1,1,p) +4.0_pReal*lattice_C66(1,2,p) -2.0_pReal*lattice_C66(4,4,p)) & / (4.0_pReal*lattice_C66(1,1,p) +6.0_pReal*lattice_C66(1,2,p) +2.0_pReal*lattice_C66(4,4,p)) lattice_C66(1:6,1:6,p) = math_sym3333to66(math_Voigt66to3333(lattice_C66(1:6,1:6,p))) ! Literature data is in Voigt notation do i = 1, 6 if (abs(lattice_C66(i,i,p)) @brief Characteristic shear for twinning !-------------------------------------------------------------------------------------------------- function lattice_characteristicShear_Twin(Ntwin,structure,CoverA) result(characteristicShear) integer, dimension(:), intent(in) :: Ntwin !< number of active twin systems per family character(len=*), intent(in) :: structure !< lattice structure real(pReal), intent(in) :: cOverA !< c/a ratio real(pReal), dimension(sum(Ntwin)) :: characteristicShear integer :: & a, & !< index of active system p, & !< index in potential system list f, & !< index of my family s !< index of my system in current family integer, dimension(HEX_NTWIN), parameter :: & HEX_SHEARTWIN = reshape( [& 1, & ! <-10.1>{10.2} 1, & 1, & 1, & 1, & 1, & 2, & ! <11.6>{-1-1.1} 2, & 2, & 2, & 2, & 2, & 3, & ! <10.-2>{10.1} 3, & 3, & 3, & 3, & 3, & 4, & ! <11.-3>{11.2} 4, & 4, & 4, & 4, & 4 & ],[HEX_NTWIN]) ! indicator to formulas below if (len_trim(structure) /= 3) & call IO_error(137,ext_msg='lattice_characteristicShear_Twin: '//trim(structure)) a = 0 myFamilies: do f = 1,size(Ntwin,1) mySystems: do s = 1,Ntwin(f) a = a + 1 select case(structure) case('fcc','bcc') characteristicShear(a) = 0.5_pReal*sqrt(2.0_pReal) case('hex') if (cOverA < 1.0_pReal .or. cOverA > 2.0_pReal) & call IO_error(131,ext_msg='lattice_characteristicShear_Twin') p = sum(HEX_NTWINSYSTEM(1:f-1))+s select case(HEX_SHEARTWIN(p)) ! from Christian & Mahajan 1995 p.29 case (1) ! <-10.1>{10.2} characteristicShear(a) = (3.0_pReal-cOverA**2.0_pReal)/sqrt(3.0_pReal)/CoverA case (2) ! <11.6>{-1-1.1} characteristicShear(a) = 1.0_pReal/cOverA case (3) ! <10.-2>{10.1} characteristicShear(a) = (4.0_pReal*cOverA**2.0_pReal-9.0_pReal)/sqrt(48.0_pReal)/cOverA case (4) ! <11.-3>{11.2} characteristicShear(a) = 2.0_pReal*(cOverA**2.0_pReal-2.0_pReal)/3.0_pReal/cOverA end select case default call IO_error(137,ext_msg='lattice_characteristicShear_Twin: '//trim(structure)) end select enddo mySystems enddo myFamilies end function lattice_characteristicShear_Twin !-------------------------------------------------------------------------------------------------- !> @brief Rotated elasticity matrices for twinning in 66-vector notation !-------------------------------------------------------------------------------------------------- function lattice_C66_twin(Ntwin,C66,structure,CoverA) integer, dimension(:), intent(in) :: Ntwin !< number of active twin systems per family character(len=*), intent(in) :: structure !< lattice structure real(pReal), dimension(6,6), intent(in) :: C66 !< unrotated parent stiffness matrix real(pReal), intent(in) :: cOverA !< c/a ratio real(pReal), dimension(6,6,sum(Ntwin)) :: lattice_C66_twin real(pReal), dimension(3,3,sum(Ntwin)):: coordinateSystem type(rotation) :: R integer :: i if (len_trim(structure) /= 3) & call IO_error(137,ext_msg='lattice_C66_twin: '//trim(structure)) select case(structure) case('fcc') coordinateSystem = buildCoordinateSystem(Ntwin,FCC_NSLIPSYSTEM,FCC_SYSTEMTWIN,& trim(structure),0.0_pReal) case('bcc') coordinateSystem = buildCoordinateSystem(Ntwin,BCC_NSLIPSYSTEM,BCC_SYSTEMTWIN,& trim(structure),0.0_pReal) case('hex') coordinateSystem = buildCoordinateSystem(Ntwin,HEX_NSLIPSYSTEM,HEX_SYSTEMTWIN,& 'hex',cOverA) case default call IO_error(137,ext_msg='lattice_C66_twin: '//trim(structure)) end select do i = 1, sum(Ntwin) call R%fromAxisAngle([coordinateSystem(1:3,2,i),PI],P=1) ! ToDo: Why always 180 deg? lattice_C66_twin(1:6,1:6,i) = R%rotTensor4sym(C66) enddo end function lattice_C66_twin !-------------------------------------------------------------------------------------------------- !> @brief Rotated elasticity matrices for transformation in 66-vector notation !-------------------------------------------------------------------------------------------------- function lattice_C66_trans(Ntrans,C_parent66,structure_target, & cOverA_trans,a_bcc,a_fcc) integer, dimension(:), intent(in) :: Ntrans !< number of active twin systems per family character(len=*), intent(in) :: structure_target !< lattice structure real(pReal), dimension(6,6), intent(in) :: C_parent66 real(pReal), dimension(6,6,sum(Ntrans)) :: lattice_C66_trans real(pReal), dimension(6,6) :: C_bar66, C_target_unrotated66 real(pReal), dimension(3,3,sum(Ntrans)) :: Q,S type(rotation) :: R real(pReal) :: a_bcc, a_fcc, cOverA_trans integer :: i if (len_trim(structure_target) /= 3) & call IO_error(137,ext_msg='lattice_C66_trans (target): '//trim(structure_target)) !-------------------------------------------------------------------------------------------------- ! elasticity matrix of the target phase in cube orientation if (structure_target(1:3) == 'hex') then if (cOverA_trans < 1.0_pReal .or. cOverA_trans > 2.0_pReal) & call IO_error(131,ext_msg='lattice_C66_trans: '//trim(structure_target)) C_bar66(1,1) = (C_parent66(1,1) + C_parent66(1,2) + 2.0_pReal*C_parent66(4,4))/2.0_pReal C_bar66(1,2) = (C_parent66(1,1) + 5.0_pReal*C_parent66(1,2) - 2.0_pReal*C_parent66(4,4))/6.0_pReal C_bar66(3,3) = (C_parent66(1,1) + 2.0_pReal*C_parent66(1,2) + 4.0_pReal*C_parent66(4,4))/3.0_pReal C_bar66(1,3) = (C_parent66(1,1) + 2.0_pReal*C_parent66(1,2) - 2.0_pReal*C_parent66(4,4))/3.0_pReal C_bar66(4,4) = (C_parent66(1,1) - C_parent66(1,2) + C_parent66(4,4))/3.0_pReal C_bar66(1,4) = (C_parent66(1,1) - C_parent66(1,2) - 2.0_pReal*C_parent66(4,4)) /(3.0_pReal*sqrt(2.0_pReal)) C_target_unrotated66 = 0.0_pReal C_target_unrotated66(1,1) = C_bar66(1,1) - C_bar66(1,4)**2.0_pReal/C_bar66(4,4) C_target_unrotated66(1,2) = C_bar66(1,2) + C_bar66(1,4)**2.0_pReal/C_bar66(4,4) C_target_unrotated66(1,3) = C_bar66(1,3) C_target_unrotated66(3,3) = C_bar66(3,3) C_target_unrotated66(4,4) = C_bar66(4,4) - C_bar66(1,4)**2.0_pReal/(0.5_pReal*(C_bar66(1,1) - C_bar66(1,2))) C_target_unrotated66 = applyLatticeSymmetryC66(C_target_unrotated66,'hex') elseif (structure_target(1:3) == 'bcc') then if (a_bcc <= 0.0_pReal .or. a_fcc <= 0.0_pReal) & call IO_error(134,ext_msg='lattice_C66_trans: '//trim(structure_target)) C_target_unrotated66 = C_parent66 else call IO_error(137,ext_msg='lattice_C66_trans : '//trim(structure_target)) endif do i = 1, 6 if (abs(C_target_unrotated66(i,i)) @brief Non-schmid projections for bcc with up to 6 coefficients ! Koester et al. 2012, Acta Materialia 60 (2012) 3894–3901, eq. (17) ! Gröger et al. 2008, Acta Materialia 56 (2008) 5412–5425, table 1 !-------------------------------------------------------------------------------------------------- function lattice_nonSchmidMatrix(Nslip,nonSchmidCoefficients,sense) result(nonSchmidMatrix) integer, dimension(:), intent(in) :: Nslip !< number of active slip systems per family real(pReal), dimension(:), intent(in) :: nonSchmidCoefficients !< non-Schmid coefficients for projections integer, intent(in) :: sense !< sense (-1,+1) real(pReal), dimension(1:3,1:3,sum(Nslip)) :: nonSchmidMatrix real(pReal), dimension(1:3,1:3,sum(Nslip)) :: coordinateSystem !< coordinate system of slip system real(pReal), dimension(3) :: direction, normal, np type(rotation) :: R integer :: i if (abs(sense) /= 1) call IO_error(0,ext_msg='lattice_nonSchmidMatrix') coordinateSystem = buildCoordinateSystem(Nslip,BCC_NSLIPSYSTEM,BCC_SYSTEMSLIP,& 'bcc',0.0_pReal) coordinateSystem(1:3,1,1:sum(Nslip)) = coordinateSystem(1:3,1,1:sum(Nslip)) *real(sense,pReal) ! convert unidirectional coordinate system nonSchmidMatrix = lattice_SchmidMatrix_slip(Nslip,'bcc',0.0_pReal) ! Schmid contribution do i = 1,sum(Nslip) direction = coordinateSystem(1:3,1,i) normal = coordinateSystem(1:3,2,i) call R%fromAxisAngle([direction,60.0_pReal],degrees=.true.,P=1) np = R%rotate(normal) if (size(nonSchmidCoefficients)>0) nonSchmidMatrix(1:3,1:3,i) = nonSchmidMatrix(1:3,1:3,i) & + nonSchmidCoefficients(1) * math_outer(direction, np) if (size(nonSchmidCoefficients)>1) nonSchmidMatrix(1:3,1:3,i) = nonSchmidMatrix(1:3,1:3,i) & + nonSchmidCoefficients(2) * math_outer(math_cross(normal, direction), normal) if (size(nonSchmidCoefficients)>2) nonSchmidMatrix(1:3,1:3,i) = nonSchmidMatrix(1:3,1:3,i) & + nonSchmidCoefficients(3) * math_outer(math_cross(np, direction), np) if (size(nonSchmidCoefficients)>3) nonSchmidMatrix(1:3,1:3,i) = nonSchmidMatrix(1:3,1:3,i) & + nonSchmidCoefficients(4) * math_outer(normal, normal) if (size(nonSchmidCoefficients)>4) nonSchmidMatrix(1:3,1:3,i) = nonSchmidMatrix(1:3,1:3,i) & + nonSchmidCoefficients(5) * math_outer(math_cross(normal, direction), & math_cross(normal, direction)) if (size(nonSchmidCoefficients)>5) nonSchmidMatrix(1:3,1:3,i) = nonSchmidMatrix(1:3,1:3,i) & + nonSchmidCoefficients(6) * math_outer(direction, direction) enddo end function lattice_nonSchmidMatrix !-------------------------------------------------------------------------------------------------- !> @brief Slip-slip interaction matrix !> details only active slip systems are considered !-------------------------------------------------------------------------------------------------- function lattice_interaction_SlipBySlip(Nslip,interactionValues,structure) result(interactionMatrix) integer, dimension(:), intent(in) :: Nslip !< number of active slip systems per family real(pReal), dimension(:), intent(in) :: interactionValues !< values for slip-slip interaction character(len=*), intent(in) :: structure !< lattice structure real(pReal), dimension(sum(Nslip),sum(Nslip)) :: interactionMatrix integer, dimension(:), allocatable :: NslipMax integer, dimension(:,:), allocatable :: interactionTypes integer, dimension(FCC_NSLIP,FCC_NSLIP), parameter :: & FCC_INTERACTIONSLIPSLIP = reshape( [& 1, 2, 2, 4, 6, 5, 3, 5, 5, 4, 5, 6, 9,10, 9,10,11,12, & ! -----> acting 2, 1, 2, 6, 4, 5, 5, 4, 6, 5, 3, 5, 9,10,11,12, 9,10, & ! | 2, 2, 1, 5, 5, 3, 5, 6, 4, 6, 5, 4, 11,12, 9,10, 9,10, & ! | 4, 6, 5, 1, 2, 2, 4, 5, 6, 3, 5, 5, 9,10,10, 9,12,11, & ! v 6, 4, 5, 2, 1, 2, 5, 3, 5, 5, 4, 6, 9,10,12,11,10, 9, & ! reacting 5, 5, 3, 2, 2, 1, 6, 5, 4, 5, 6, 4, 11,12,10, 9,10, 9, & 3, 5, 5, 4, 5, 6, 1, 2, 2, 4, 6, 5, 10, 9,10, 9,11,12, & 5, 4, 6, 5, 3, 5, 2, 1, 2, 6, 4, 5, 10, 9,12,11, 9,10, & 5, 6, 4, 6, 5, 4, 2, 2, 1, 5, 5, 3, 12,11,10, 9, 9,10, & 4, 5, 6, 3, 5, 5, 4, 6, 5, 1, 2, 2, 10, 9, 9,10,12,11, & 5, 3, 5, 5, 4, 6, 6, 4, 5, 2, 1, 2, 10, 9,11,12,10, 9, & 6, 5, 4, 5, 6, 4, 5, 5, 3, 2, 2, 1, 12,11, 9,10,10, 9, & 9, 9,11, 9, 9,11,10,10,12,10,10,12, 1, 7, 8, 8, 8, 8, & 10,10,12,10,10,12, 9, 9,11, 9, 9,11, 7, 1, 8, 8, 8, 8, & 9,11, 9,10,12,10,10,12,10, 9,11, 9, 8, 8, 1, 7, 8, 8, & 10,12,10, 9,11, 9, 9,11, 9,10,12,10, 8, 8, 7, 1, 8, 8, & 11, 9, 9,12,10,10,11, 9, 9,12,10,10, 8, 8, 8, 8, 1, 7, & 12,10,10,11, 9, 9,12,10,10,11, 9, 9, 8, 8, 8, 8, 7, 1 & ],shape(FCC_INTERACTIONSLIPSLIP)) !< Slip--slip interaction types for fcc !< 1: self interaction !< 2: coplanar interaction !< 3: collinear interaction !< 4: Hirth locks !< 5: glissile junctions !< 6: Lomer locks !< 7: crossing (similar to Hirth locks in <110>{111} for two {110} planes) !< 8: similar to Lomer locks in <110>{111} for two {110} planes !< 9: similar to Lomer locks in <110>{111} btw one {110} and one {111} plane !<10: similar to glissile junctions in <110>{111} btw one {110} and one {111} plane !<11: crossing btw one {110} and one {111} plane !<12: collinear btw one {110} and one {111} plane integer, dimension(BCC_NSLIP,BCC_NSLIP), parameter :: & BCC_INTERACTIONSLIPSLIP = reshape( [& 1,2,6,6,5,4,4,3,4,3,5,4, 6,6,4,3,3,4,6,6,4,3,6,6, & ! -----> acting 2,1,6,6,4,3,5,4,5,4,4,3, 6,6,3,4,4,3,6,6,3,4,6,6, & ! | 6,6,1,2,4,5,3,4,4,5,3,4, 4,3,6,6,6,6,3,4,6,6,4,3, & ! | 6,6,2,1,3,4,4,5,3,4,4,5, 3,4,6,6,6,6,4,3,6,6,3,4, & ! v 5,4,4,3,1,2,6,6,3,4,5,4, 3,6,4,6,6,4,6,3,4,6,3,6, & ! reacting 4,3,5,4,2,1,6,6,4,5,4,3, 4,6,3,6,6,3,6,4,3,6,4,6, & 4,5,3,4,6,6,1,2,5,4,3,4, 6,3,6,4,4,6,3,6,6,4,6,3, & 3,4,4,5,6,6,2,1,4,3,4,5, 6,4,6,3,3,6,4,6,6,3,6,4, & 4,5,4,3,3,4,5,4,1,2,6,6, 3,6,6,4,4,6,6,3,6,4,3,6, & 3,4,5,4,4,5,4,3,2,1,6,6, 4,6,6,3,3,6,6,4,6,3,4,6, & 5,4,3,4,5,4,3,4,6,6,1,2, 6,3,4,6,6,4,3,6,4,6,6,3, & 4,3,4,5,4,3,4,5,6,6,2,1, 6,4,3,6,6,3,4,6,3,6,6,4, & ! 6,6,4,3,3,4,6,6,3,4,6,6, 1,5,6,6,5,6,6,3,5,6,3,6, & 6,6,3,4,6,6,3,4,6,6,3,4, 5,1,6,6,6,5,3,6,6,5,6,3, & 4,3,6,6,4,3,6,6,6,6,4,3, 6,6,1,5,6,3,5,6,3,6,5,6, & 3,4,6,6,6,6,4,3,4,3,6,6, 6,6,5,1,3,6,6,5,6,3,6,5, & 3,4,6,6,6,6,4,3,4,3,6,6, 5,6,6,3,1,6,5,6,5,3,6,6, & 4,3,6,6,4,3,6,6,6,6,4,3, 6,5,3,6,6,1,6,5,3,5,6,6, & 6,6,3,4,6,6,3,4,6,6,3,4, 6,3,5,6,5,6,1,6,6,6,5,3, & 6,6,4,3,3,4,6,6,3,4,6,6, 3,6,6,5,6,5,6,1,6,6,3,5, & 4,3,6,6,4,3,6,6,6,6,4,3, 5,6,3,6,5,3,6,6,1,6,6,5, & 3,4,6,6,6,6,4,3,4,3,6,6, 6,5,6,3,3,5,6,6,6,1,5,6, & 6,6,4,3,3,4,6,6,3,4,6,6, 3,6,5,6,6,6,5,3,6,5,1,6, & 6,6,3,4,6,6,3,4,6,6,3,4, 6,3,6,5,6,6,3,5,5,6,6,1 & ],shape(BCC_INTERACTIONSLIPSLIP)) !< Slip--slip interaction types for bcc from Queyreau et al. Int J Plast 25 (2009) 361–377 !< 1: self interaction !< 2: coplanar interaction !< 3: collinear interaction !< 4: mixed-asymmetrical junction !< 5: mixed-symmetrical junction !< 6: edge junction integer, dimension(HEX_NSLIP,HEX_NSLIP), parameter :: & HEX_INTERACTIONSLIPSLIP = reshape( [& 1, 2, 2, 3, 3, 3, 7, 7, 7, 13,13,13,13,13,13, 21,21,21,21,21,21,21,21,21,21,21,21, 31,31,31,31,31,31, & ! -----> acting 2, 1, 2, 3, 3, 3, 7, 7, 7, 13,13,13,13,13,13, 21,21,21,21,21,21,21,21,21,21,21,21, 31,31,31,31,31,31, & ! | 2, 2, 1, 3, 3, 3, 7, 7, 7, 13,13,13,13,13,13, 21,21,21,21,21,21,21,21,21,21,21,21, 31,31,31,31,31,31, & ! | ! ! v 6, 6, 6, 4, 5, 5, 8, 8, 8, 14,14,14,14,14,14, 22,22,22,22,22,22,22,22,22,22,22,22, 32,32,32,32,32,32, & ! reacting 6, 6, 6, 5, 4, 5, 8, 8, 8, 14,14,14,14,14,14, 22,22,22,22,22,22,22,22,22,22,22,22, 32,32,32,32,32,32, & 6, 6, 6, 5, 5, 4, 8, 8, 8, 14,14,14,14,14,14, 22,22,22,22,22,22,22,22,22,22,22,22, 32,32,32,32,32,32, & ! 12,12,12, 11,11,11, 9,10,10, 15,15,15,15,15,15, 23,23,23,23,23,23,23,23,23,23,23,23, 33,33,33,33,33,33, & 12,12,12, 11,11,11, 10, 9,10, 15,15,15,15,15,15, 23,23,23,23,23,23,23,23,23,23,23,23, 33,33,33,33,33,33, & 12,12,12, 11,11,11, 10,10, 9, 15,15,15,15,15,15, 23,23,23,23,23,23,23,23,23,23,23,23, 33,33,33,33,33,33, & ! 20,20,20, 19,19,19, 18,18,18, 16,17,17,17,17,17, 24,24,24,24,24,24,24,24,24,24,24,24, 34,34,34,34,34,34, & 20,20,20, 19,19,19, 18,18,18, 17,16,17,17,17,17, 24,24,24,24,24,24,24,24,24,24,24,24, 34,34,34,34,34,34, & 20,20,20, 19,19,19, 18,18,18, 17,17,16,17,17,17, 24,24,24,24,24,24,24,24,24,24,24,24, 34,34,34,34,34,34, & 20,20,20, 19,19,19, 18,18,18, 17,17,17,16,17,17, 24,24,24,24,24,24,24,24,24,24,24,24, 34,34,34,34,34,34, & 20,20,20, 19,19,19, 18,18,18, 17,17,17,17,16,17, 24,24,24,24,24,24,24,24,24,24,24,24, 34,34,34,34,34,34, & 20,20,20, 19,19,19, 18,18,18, 17,17,17,17,17,16, 24,24,24,24,24,24,24,24,24,24,24,24, 34,34,34,34,34,34, & ! 30,30,30, 29,29,29, 28,28,28, 27,27,27,27,27,27, 25,26,26,26,26,26,26,26,26,26,26,26, 35,35,35,35,35,35, & 30,30,30, 29,29,29, 28,28,28, 27,27,27,27,27,27, 26,25,26,26,26,26,26,26,26,26,26,26, 35,35,35,35,35,35, & 30,30,30, 29,29,29, 28,28,28, 27,27,27,27,27,27, 26,26,25,26,26,26,26,26,26,26,26,26, 35,35,35,35,35,35, & 30,30,30, 29,29,29, 28,28,28, 27,27,27,27,27,27, 26,26,26,25,26,26,26,26,26,26,26,26, 35,35,35,35,35,35, & 30,30,30, 29,29,29, 28,28,28, 27,27,27,27,27,27, 26,26,26,26,25,26,26,26,26,26,26,26, 35,35,35,35,35,35, & 30,30,30, 29,29,29, 28,28,28, 27,27,27,27,27,27, 26,26,26,26,26,25,26,26,26,26,26,26, 35,35,35,35,35,35, & 30,30,30, 29,29,29, 28,28,28, 27,27,27,27,27,27, 26,26,26,26,26,26,25,26,26,26,26,26, 35,35,35,35,35,35, & 30,30,30, 29,29,29, 28,28,28, 27,27,27,27,27,27, 26,26,26,26,26,26,26,25,26,26,26,26, 35,35,35,35,35,35, & 30,30,30, 29,29,29, 28,28,28, 27,27,27,27,27,27, 26,26,26,26,26,26,26,26,25,26,26,26, 35,35,35,35,35,35, & 30,30,30, 29,29,29, 28,28,28, 27,27,27,27,27,27, 26,26,26,26,26,26,26,26,26,25,26,26, 35,35,35,35,35,35, & 30,30,30, 29,29,29, 28,28,28, 27,27,27,27,27,27, 26,26,26,26,26,26,26,26,26,26,25,26, 35,35,35,35,35,35, & 30,30,30, 29,29,29, 28,28,28, 27,27,27,27,27,27, 26,26,26,26,26,26,26,26,26,26,26,25, 35,35,35,35,35,35, & ! 42,42,42, 41,41,41, 40,40,40, 39,39,39,39,39,39, 38,38,38,38,38,38,38,38,38,38,38,38, 36,37,37,37,37,37, & 42,42,42, 41,41,41, 40,40,40, 39,39,39,39,39,39, 38,38,38,38,38,38,38,38,38,38,38,38, 37,36,37,37,37,37, & 42,42,42, 41,41,41, 40,40,40, 39,39,39,39,39,39, 38,38,38,38,38,38,38,38,38,38,38,38, 37,37,36,37,37,37, & 42,42,42, 41,41,41, 40,40,40, 39,39,39,39,39,39, 38,38,38,38,38,38,38,38,38,38,38,38, 37,37,37,36,37,37, & 42,42,42, 41,41,41, 40,40,40, 39,39,39,39,39,39, 38,38,38,38,38,38,38,38,38,38,38,38, 37,37,37,37,36,37, & 42,42,42, 41,41,41, 40,40,40, 39,39,39,39,39,39, 38,38,38,38,38,38,38,38,38,38,38,38, 37,37,37,37,37,36 & ],shape(HEX_INTERACTIONSLIPSLIP)) !< Slip--slip interaction types for hex (onion peel naming scheme) integer, dimension(BCT_NSLIP,BCT_NSLIP), parameter :: & BCT_INTERACTIONSLIPSLIP = reshape( [& 1, 2, 3, 3, 7, 7, 13, 13, 13, 13, 21, 21, 31, 31, 31, 31, 43, 43, 57, 57, 73, 73, 73, 73, 91, 91, 91, 91, 91, 91, 91, 91, 111, 111, 111, 111, 133,133,133,133,133,133,133,133, 157,157,157,157,157,157,157,157, & ! -----> acting 2, 1, 3, 3, 7, 7, 13, 13, 13, 13, 21, 21, 31, 31, 31, 31, 43, 43, 57, 57, 73, 73, 73, 73, 91, 91, 91, 91, 91, 91, 91, 91, 111, 111, 111, 111, 133,133,133,133,133,133,133,133, 157,157,157,157,157,157,157,157, & ! | ! | 6, 6, 4, 5, 8, 8, 14, 14, 14, 14, 22, 22, 32, 32, 32, 32, 44, 44, 58, 58, 74, 74, 74, 74, 92, 92, 92, 92, 92, 92, 92, 92, 112, 112, 112, 112, 134,134,134,134,134,134,134,134, 158,158,158,158,158,158,158,158, & ! v 6, 6, 5, 4, 8, 8, 14, 14, 14, 14, 22, 22, 32, 32, 32, 32, 44, 44, 58, 58, 74, 74, 74, 74, 92, 92, 92, 92, 92, 92, 92, 92, 112, 112, 112, 112, 134,134,134,134,134,134,134,134, 158,158,158,158,158,158,158,158, & ! reacting ! 12, 12, 11, 11, 9, 10, 15, 15, 15, 15, 23, 23, 33, 33, 33, 33, 45, 45, 59, 59, 75, 75, 75, 75, 93, 93, 93, 93, 93, 93, 93, 93, 113, 113, 113, 113, 135,135,135,135,135,135,135,135, 159,159,159,159,159,159,159,159, & 12, 12, 11, 11, 10, 9, 15, 15, 15, 15, 23, 23, 33, 33, 33, 33, 45, 45, 59, 59, 75, 75, 75, 75, 93, 93, 93, 93, 93, 93, 93, 93, 113, 113, 113, 113, 135,135,135,135,135,135,135,135, 159,159,159,159,159,159,159,159, & ! 20, 20, 19, 19, 18, 18, 16, 17, 17, 17, 24, 24, 34, 34, 34, 34, 46, 46, 60, 60, 76, 76, 76, 76, 94, 94, 94, 94, 94, 94, 94, 94, 114, 114, 114, 114, 136,136,136,136,136,136,136,136, 160,160,160,160,160,160,160,160, & 20, 20, 19, 19, 18, 18, 17, 16, 17, 17, 24, 24, 34, 34, 34, 34, 46, 46, 60, 60, 76, 76, 76, 76, 94, 94, 94, 94, 94, 94, 94, 94, 114, 114, 114, 114, 136,136,136,136,136,136,136,136, 160,160,160,160,160,160,160,160, & 20, 20, 19, 19, 18, 18, 17, 17, 16, 17, 24, 24, 34, 34, 34, 34, 46, 46, 60, 60, 76, 76, 76, 76, 94, 94, 94, 94, 94, 94, 94, 94, 114, 114, 114, 114, 136,136,136,136,136,136,136,136, 160,160,160,160,160,160,160,160, & 20, 20, 19, 19, 18, 18, 17, 17, 17, 16, 24, 24, 34, 34, 34, 34, 46, 46, 60, 60, 76, 76, 76, 76, 94, 94, 94, 94, 94, 94, 94, 94, 114, 114, 114, 114, 136,136,136,136,136,136,136,136, 160,160,160,160,160,160,160,160, & ! 30, 30, 29, 29, 28, 28, 27, 27, 27, 27, 25, 26, 35, 35, 35, 35, 47, 47, 61, 61, 77, 77, 77, 77, 95, 95, 95, 95, 95, 95, 95, 95, 115, 115, 115, 115, 137,137,137,137,137,137,137,137, 161,161,161,161,161,161,161,161, & 30, 30, 29, 29, 28, 28, 27, 27, 27, 27, 26, 25, 35, 35, 35, 35, 47, 47, 61, 61, 77, 77, 77, 77, 95, 95, 95, 95, 95, 95, 95, 95, 115, 115, 115, 115, 137,137,137,137,137,137,137,137, 161,161,161,161,161,161,161,161, & ! 42, 42, 41, 41, 40, 40, 39, 39, 39, 39, 38, 38, 36, 37, 37, 37, 48, 48, 62, 62, 78, 78, 78, 78, 96, 96, 96, 96, 96, 96, 96, 96, 116, 116, 116, 116, 138,138,138,138,138,138,138,138, 162,162,162,162,162,162,162,162, & 42, 42, 41, 41, 40, 40, 39, 39, 39, 39, 38, 38, 37, 36, 37, 37, 48, 48, 62, 62, 78, 78, 78, 78, 96, 96, 96, 96, 96, 96, 96, 96, 116, 116, 116, 116, 138,138,138,138,138,138,138,138, 162,162,162,162,162,162,162,162, & 42, 42, 41, 41, 40, 40, 39, 39, 39, 39, 38, 38, 37, 37, 36, 37, 48, 48, 62, 62, 78, 78, 78, 78, 96, 96, 96, 96, 96, 96, 96, 96, 116, 116, 116, 116, 138,138,138,138,138,138,138,138, 162,162,162,162,162,162,162,162, & 42, 42, 41, 41, 40, 40, 39, 39, 39, 39, 38, 38, 37, 37, 37, 36, 48, 48, 62, 62, 78, 78, 78, 78, 96, 96, 96, 96, 96, 96, 96, 96, 116, 116, 116, 116, 138,138,138,138,138,138,138,138, 162,162,162,162,162,162,162,162, & ! 56, 56, 55, 55, 54, 54, 53, 53, 53, 53, 52, 52, 51, 51, 51, 51, 49, 50, 63, 63, 79, 79, 79, 79, 97, 97, 97, 97, 97, 97, 97, 97, 117, 117, 117, 117, 139,139,139,139,139,139,139,139, 163,163,163,163,163,163,163,163, & 56, 56, 55, 55, 54, 54, 53, 53, 53, 53, 52, 52, 51, 51, 51, 51, 50, 49, 63, 63, 79, 79, 79, 79, 97, 97, 97, 97, 97, 97, 97, 97, 117, 117, 117, 117, 139,139,139,139,139,139,139,139, 163,163,163,163,163,163,163,163, & ! 72, 72, 71, 71, 70, 70, 69, 69, 69, 69, 68, 68, 67, 67, 67, 67, 66, 66, 64, 65, 80, 80, 80, 80, 98, 98, 98, 98, 98, 98, 98, 98, 118, 118, 118, 118, 140,140,140,140,140,140,140,140, 164,164,164,164,164,164,164,164, & 72, 72, 71, 71, 70, 70, 69, 69, 69, 69, 68, 68, 67, 67, 67, 67, 66, 66, 65, 64, 80, 80, 80, 80, 98, 98, 98, 98, 98, 98, 98, 98, 118, 118, 118, 118, 140,140,140,140,140,140,140,140, 164,164,164,164,164,164,164,164, & ! 90, 90, 89, 89, 88, 88, 87, 87, 87, 87, 86, 86, 85, 85, 85, 85, 84, 84, 83, 83, 81, 82, 82, 82, 99, 99, 99, 99, 99, 99, 99, 99, 119, 119, 119, 119, 141,141,141,141,141,141,141,141, 165,165,165,165,165,165,165,165, & 90, 90, 89, 89, 88, 88, 87, 87, 87, 87, 86, 86, 85, 85, 85, 85, 84, 84, 83, 83, 82, 81, 82, 82, 99, 99, 99, 99, 99, 99, 99, 99, 119, 119, 119, 119, 141,141,141,141,141,141,141,141, 165,165,165,165,165,165,165,165, & 90, 90, 89, 89, 88, 88, 87, 87, 87, 87, 86, 86, 85, 85, 85, 85, 84, 84, 83, 83, 82, 82, 81, 82, 99, 99, 99, 99, 99, 99, 99, 99, 119, 119, 119, 119, 141,141,141,141,141,141,141,141, 165,165,165,165,165,165,165,165, & 90, 90, 89, 89, 88, 88, 87, 87, 87, 87, 86, 86, 85, 85, 85, 85, 84, 84, 83, 83, 82, 82, 82, 81, 99, 99, 99, 99, 99, 99, 99, 99, 119, 119, 119, 119, 141,141,141,141,141,141,141,141, 165,165,165,165,165,165,165,165, & ! 110,110, 109,109, 108,108, 107,107,107,107, 106,106, 105,105,105,105, 104,104, 103,103, 102,102,102,102, 100,101,101,101,101,101,101,101, 120, 120, 120, 120, 142,142,142,142,142,142,142,142, 166,166,166,166,166,166,166,166, & 110,110, 109,109, 108,108, 107,107,107,107, 106,106, 105,105,105,105, 104,104, 103,103, 102,102,102,102, 101,100,101,101,101,101,101,101, 120, 120, 120, 120, 142,142,142,142,142,142,142,142, 166,166,166,166,166,166,166,166, & 110,110, 109,109, 108,108, 107,107,107,107, 106,106, 105,105,105,105, 104,104, 103,103, 102,102,102,102, 101,101,100,101,101,101,101,101, 120, 120, 120, 120, 142,142,142,142,142,142,142,142, 166,166,166,166,166,166,166,166, & 110,110, 109,109, 108,108, 107,107,107,107, 106,106, 105,105,105,105, 104,104, 103,103, 102,102,102,102, 101,101,101,100,101,101,101,101, 120, 120, 120, 120, 142,142,142,142,142,142,142,142, 166,166,166,166,166,166,166,166, & 110,110, 109,109, 108,108, 107,107,107,107, 106,106, 105,105,105,105, 104,104, 103,103, 102,102,102,102, 101,101,101,101,100,101,101,101, 120, 120, 120, 120, 142,142,142,142,142,142,142,142, 166,166,166,166,166,166,166,166, & 110,110, 109,109, 108,108, 107,107,107,107, 106,106, 105,105,105,105, 104,104, 103,103, 102,102,102,102, 101,101,101,101,101,100,101,101, 120, 120, 120, 120, 142,142,142,142,142,142,142,142, 166,166,166,166,166,166,166,166, & 110,110, 109,109, 108,108, 107,107,107,107, 106,106, 105,105,105,105, 104,104, 103,103, 102,102,102,102, 101,101,101,101,101,101,100,101, 120, 120, 120, 120, 142,142,142,142,142,142,142,142, 166,166,166,166,166,166,166,166, & 110,110, 109,109, 108,108, 107,107,107,107, 106,106, 105,105,105,105, 104,104, 103,103, 102,102,102,102, 101,101,101,101,101,101,101,100, 120, 120, 120, 120, 142,142,142,142,142,142,142,142, 166,166,166,166,166,166,166,166, & ! 132,132, 131,131, 130,130, 129,129,129,129, 128,128, 127,127,127,127, 126,126, 125,125, 124,124,124,124, 123,123,123,123,123,123,123,123, 121, 122, 122, 122, 143,143,143,143,143,143,143,143, 167,167,167,167,167,167,167,167, & 132,132, 131,131, 130,130, 129,129,129,129, 128,128, 127,127,127,127, 126,126, 125,125, 124,124,124,124, 123,123,123,123,123,123,123,123, 121, 121, 122, 122, 143,143,143,143,143,143,143,143, 167,167,167,167,167,167,167,167, & 132,132, 131,131, 130,130, 129,129,129,129, 128,128, 127,127,127,127, 126,126, 125,125, 124,124,124,124, 123,123,123,123,123,123,123,123, 121, 122, 121, 122, 143,143,143,143,143,143,143,143, 167,167,167,167,167,167,167,167, & 132,132, 131,131, 130,130, 129,129,129,129, 128,128, 127,127,127,127, 126,126, 125,125, 124,124,124,124, 123,123,123,123,123,123,123,123, 121, 122, 122, 121, 143,143,143,143,143,143,143,143, 167,167,167,167,167,167,167,167, & ! 156,156, 155,155, 154,154, 153,153,153,153, 152,152, 151,151,151,151, 150,150, 149,149, 148,148,148,148, 147,147,147,147,147,147,147,147, 146, 146, 146, 146, 144,145,145,145,145,145,145,145, 168,168,168,168,168,168,168,168, & 156,156, 155,155, 154,154, 153,153,153,153, 152,152, 151,151,151,151, 150,150, 149,149, 148,148,148,148, 147,147,147,147,147,147,147,147, 146, 146, 146, 146, 145,144,145,145,145,145,145,145, 168,168,168,168,168,168,168,168, & 156,156, 155,155, 154,154, 153,153,153,153, 152,152, 151,151,151,151, 150,150, 149,149, 148,148,148,148, 147,147,147,147,147,147,147,147, 146, 146, 146, 146, 145,145,144,145,145,145,145,145, 168,168,168,168,168,168,168,168, & 156,156, 155,155, 154,154, 153,153,153,153, 152,152, 151,151,151,151, 150,150, 149,149, 148,148,148,148, 147,147,147,147,147,147,147,147, 146, 146, 146, 146, 145,145,145,144,145,145,145,145, 168,168,168,168,168,168,168,168, & 156,156, 155,155, 154,154, 153,153,153,153, 152,152, 151,151,151,151, 150,150, 149,149, 148,148,148,148, 147,147,147,147,147,147,147,147, 146, 146, 146, 146, 145,145,145,145,144,145,145,145, 168,168,168,168,168,168,168,168, & 156,156, 155,155, 154,154, 153,153,153,153, 152,152, 151,151,151,151, 150,150, 149,149, 148,148,148,148, 147,147,147,147,147,147,147,147, 146, 146, 146, 146, 145,145,145,145,145,144,145,145, 168,168,168,168,168,168,168,168, & 156,156, 155,155, 154,154, 153,153,153,153, 152,152, 151,151,151,151, 150,150, 149,149, 148,148,148,148, 147,147,147,147,147,147,147,147, 146, 146, 146, 146, 145,145,145,145,145,145,144,145, 168,168,168,168,168,168,168,168, & 156,156, 155,155, 154,154, 153,153,153,153, 152,152, 151,151,151,151, 150,150, 149,149, 148,148,148,148, 147,147,147,147,147,147,147,147, 146, 146, 146, 146, 145,145,145,145,145,145,145,144, 168,168,168,168,168,168,168,168, & ! 182,182, 181,181, 180,180, 179,179,179,179, 178,178, 177,177,177,177, 176,176, 175,175, 174,174,174,174, 173,173,173,173,173,173,173,173, 172, 172, 172, 172, 171,171,171,171,171,171,171,171, 169,170,170,170,170,170,170,170, & 182,182, 181,181, 180,180, 179,179,179,179, 178,178, 177,177,177,177, 176,176, 175,175, 174,174,174,174, 173,173,173,173,173,173,173,173, 172, 172, 172, 172, 171,171,171,171,171,171,171,171, 170,169,170,170,170,170,170,170, & 182,182, 181,181, 180,180, 179,179,179,179, 178,178, 177,177,177,177, 176,176, 175,175, 174,174,174,174, 173,173,173,173,173,173,173,173, 172, 172, 172, 172, 171,171,171,171,171,171,171,171, 170,170,169,170,170,170,170,170, & 182,182, 181,181, 180,180, 179,179,179,179, 178,178, 177,177,177,177, 176,176, 175,175, 174,174,174,174, 173,173,173,173,173,173,173,173, 172, 172, 172, 172, 171,171,171,171,171,171,171,171, 170,170,170,169,170,170,170,170, & 182,182, 181,181, 180,180, 179,179,179,179, 178,178, 177,177,177,177, 176,176, 175,175, 174,174,174,174, 173,173,173,173,173,173,173,173, 172, 172, 172, 172, 171,171,171,171,171,171,171,171, 170,170,170,170,169,170,170,170, & 182,182, 181,181, 180,180, 179,179,179,179, 178,178, 177,177,177,177, 176,176, 175,175, 174,174,174,174, 173,173,173,173,173,173,173,173, 172, 172, 172, 172, 171,171,171,171,171,171,171,171, 169,170,170,170,170,169,170,170, & 182,182, 181,181, 180,180, 179,179,179,179, 178,178, 177,177,177,177, 176,176, 175,175, 174,174,174,174, 173,173,173,173,173,173,173,173, 172, 172, 172, 172, 171,171,171,171,171,171,171,171, 169,170,170,170,170,170,169,170, & 182,182, 181,181, 180,180, 179,179,179,179, 178,178, 177,177,177,177, 176,176, 175,175, 174,174,174,174, 173,173,173,173,173,173,173,173, 172, 172, 172, 172, 171,171,171,171,171,171,171,171, 169,170,170,170,170,170,170,169 & ],shape(BCT_INTERACTIONSLIPSLIP)) if (len_trim(structure) /= 3) & call IO_error(137,ext_msg='lattice_interaction_SlipBySlip: '//trim(structure)) select case(structure) case('fcc') interactionTypes = FCC_INTERACTIONSLIPSLIP NslipMax = FCC_NSLIPSYSTEM case('bcc') interactionTypes = BCC_INTERACTIONSLIPSLIP NslipMax = BCC_NSLIPSYSTEM case('hex') interactionTypes = HEX_INTERACTIONSLIPSLIP NslipMax = HEX_NSLIPSYSTEM case('bct') interactionTypes = BCT_INTERACTIONSLIPSLIP NslipMax = BCT_NSLIPSYSTEM case default call IO_error(137,ext_msg='lattice_interaction_SlipBySlip: '//trim(structure)) end select interactionMatrix = buildInteraction(Nslip,Nslip,NslipMax,NslipMax,interactionValues,interactionTypes) end function lattice_interaction_SlipBySlip !-------------------------------------------------------------------------------------------------- !> @brief Twin-twin interaction matrix !> details only active twin systems are considered !-------------------------------------------------------------------------------------------------- function lattice_interaction_TwinByTwin(Ntwin,interactionValues,structure) result(interactionMatrix) integer, dimension(:), intent(in) :: Ntwin !< number of active twin systems per family real(pReal), dimension(:), intent(in) :: interactionValues !< values for twin-twin interaction character(len=*), intent(in) :: structure !< lattice structure real(pReal), dimension(sum(Ntwin),sum(Ntwin)) :: interactionMatrix integer, dimension(:), allocatable :: NtwinMax integer, dimension(:,:), allocatable :: interactionTypes integer, dimension(FCC_NTWIN,FCC_NTWIN), parameter :: & FCC_INTERACTIONTWINTWIN = reshape( [& 1,1,1,2,2,2,2,2,2,2,2,2, & ! -----> acting 1,1,1,2,2,2,2,2,2,2,2,2, & ! | 1,1,1,2,2,2,2,2,2,2,2,2, & ! | 2,2,2,1,1,1,2,2,2,2,2,2, & ! v 2,2,2,1,1,1,2,2,2,2,2,2, & ! reacting 2,2,2,1,1,1,2,2,2,2,2,2, & 2,2,2,2,2,2,1,1,1,2,2,2, & 2,2,2,2,2,2,1,1,1,2,2,2, & 2,2,2,2,2,2,1,1,1,2,2,2, & 2,2,2,2,2,2,2,2,2,1,1,1, & 2,2,2,2,2,2,2,2,2,1,1,1, & 2,2,2,2,2,2,2,2,2,1,1,1 & ],shape(FCC_INTERACTIONTWINTWIN)) !< Twin-twin interaction types for fcc integer, dimension(BCC_NTWIN,BCC_NTWIN), parameter :: & BCC_INTERACTIONTWINTWIN = reshape( [& 1,3,3,3,3,3,3,2,3,3,2,3, & ! -----> acting 3,1,3,3,3,3,2,3,3,3,3,2, & ! | 3,3,1,3,3,2,3,3,2,3,3,3, & ! | 3,3,3,1,2,3,3,3,3,2,3,3, & ! v 3,3,3,2,1,3,3,3,3,2,3,3, & ! reacting 3,3,2,3,3,1,3,3,2,3,3,3, & 3,2,3,3,3,3,1,3,3,3,3,2, & 2,3,3,3,3,3,3,1,3,3,2,3, & 3,3,2,3,3,2,3,3,1,3,3,3, & 3,3,3,2,2,3,3,3,3,1,3,3, & 2,3,3,3,3,3,3,2,3,3,1,3, & 3,2,3,3,3,3,2,3,3,3,3,1 & ],shape(BCC_INTERACTIONTWINTWIN)) !< Twin-twin interaction types for bcc !< 1: self interaction !< 2: collinear interaction !< 3: other interaction integer, dimension(HEX_NTWIN,HEX_NTWIN), parameter :: & HEX_INTERACTIONTWINTWIN = reshape( [& 1, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 7, 7, 7, 7, 7, 7, 13,13,13,13,13,13, & ! -----> acting 2, 1, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 7, 7, 7, 7, 7, 7, 13,13,13,13,13,13, & ! | 2, 2, 1, 2, 2, 2, 3, 3, 3, 3, 3, 3, 7, 7, 7, 7, 7, 7, 13,13,13,13,13,13, & ! | 2, 2, 2, 1, 2, 2, 3, 3, 3, 3, 3, 3, 7, 7, 7, 7, 7, 7, 13,13,13,13,13,13, & ! v 2, 2, 2, 2, 1, 2, 3, 3, 3, 3, 3, 3, 7, 7, 7, 7, 7, 7, 13,13,13,13,13,13, & ! reacting 2, 2, 2, 2, 2, 1, 3, 3, 3, 3, 3, 3, 7, 7, 7, 7, 7, 7, 13,13,13,13,13,13, & ! 6, 6, 6, 6, 6, 6, 4, 5, 5, 5, 5, 5, 8, 8, 8, 8, 8, 8, 14,14,14,14,14,14, & 6, 6, 6, 6, 6, 6, 5, 4, 5, 5, 5, 5, 8, 8, 8, 8, 8, 8, 14,14,14,14,14,14, & 6, 6, 6, 6, 6, 6, 5, 5, 4, 5, 5, 5, 8, 8, 8, 8, 8, 8, 14,14,14,14,14,14, & 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 5, 5, 8, 8, 8, 8, 8, 8, 14,14,14,14,14,14, & 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 5, 8, 8, 8, 8, 8, 8, 14,14,14,14,14,14, & 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 8, 8, 8, 8, 8, 8, 14,14,14,14,14,14, & ! 12,12,12,12,12,12, 11,11,11,11,11,11, 9,10,10,10,10,10, 15,15,15,15,15,15, & 12,12,12,12,12,12, 11,11,11,11,11,11, 10, 9,10,10,10,10, 15,15,15,15,15,15, & 12,12,12,12,12,12, 11,11,11,11,11,11, 10,10, 9,10,10,10, 15,15,15,15,15,15, & 12,12,12,12,12,12, 11,11,11,11,11,11, 10,10,10, 9,10,10, 15,15,15,15,15,15, & 12,12,12,12,12,12, 11,11,11,11,11,11, 10,10,10,10, 9,10, 15,15,15,15,15,15, & 12,12,12,12,12,12, 11,11,11,11,11,11, 10,10,10,10,10, 9, 15,15,15,15,15,15, & ! 20,20,20,20,20,20, 19,19,19,19,19,19, 18,18,18,18,18,18, 16,17,17,17,17,17, & 20,20,20,20,20,20, 19,19,19,19,19,19, 18,18,18,18,18,18, 17,16,17,17,17,17, & 20,20,20,20,20,20, 19,19,19,19,19,19, 18,18,18,18,18,18, 17,17,16,17,17,17, & 20,20,20,20,20,20, 19,19,19,19,19,19, 18,18,18,18,18,18, 17,17,17,16,17,17, & 20,20,20,20,20,20, 19,19,19,19,19,19, 18,18,18,18,18,18, 17,17,17,17,16,17, & 20,20,20,20,20,20, 19,19,19,19,19,19, 18,18,18,18,18,18, 17,17,17,17,17,16 & ],shape(HEX_INTERACTIONTWINTWIN)) !< Twin-twin interaction types for hex if (len_trim(structure) /= 3) & call IO_error(137,ext_msg='lattice_interaction_TwinByTwin: '//trim(structure)) select case(structure) case('fcc') interactionTypes = FCC_INTERACTIONTWINTWIN NtwinMax = FCC_NTWINSYSTEM case('bcc') interactionTypes = BCC_INTERACTIONTWINTWIN NtwinMax = BCC_NTWINSYSTEM case('hex') interactionTypes = HEX_INTERACTIONTWINTWIN NtwinMax = HEX_NTWINSYSTEM case default call IO_error(137,ext_msg='lattice_interaction_TwinByTwin: '//trim(structure)) end select interactionMatrix = buildInteraction(Ntwin,Ntwin,NtwinMax,NtwinMax,interactionValues,interactionTypes) end function lattice_interaction_TwinByTwin !-------------------------------------------------------------------------------------------------- !> @brief Trans-trans interaction matrix !> details only active trans systems are considered !-------------------------------------------------------------------------------------------------- function lattice_interaction_TransByTrans(Ntrans,interactionValues,structure) result(interactionMatrix) integer, dimension(:), intent(in) :: Ntrans !< number of active trans systems per family real(pReal), dimension(:), intent(in) :: interactionValues !< values for trans-trans interaction character(len=*), intent(in) :: structure !< lattice structure (parent crystal) real(pReal), dimension(sum(Ntrans),sum(Ntrans)) :: interactionMatrix integer, dimension(:), allocatable :: NtransMax integer, dimension(:,:), allocatable :: interactionTypes integer, dimension(FCC_NTRANS,FCC_NTRANS), parameter :: & FCC_INTERACTIONTRANSTRANS = reshape( [& 1,1,1,2,2,2,2,2,2,2,2,2, & ! -----> acting 1,1,1,2,2,2,2,2,2,2,2,2, & ! | 1,1,1,2,2,2,2,2,2,2,2,2, & ! | 2,2,2,1,1,1,2,2,2,2,2,2, & ! v 2,2,2,1,1,1,2,2,2,2,2,2, & ! reacting 2,2,2,1,1,1,2,2,2,2,2,2, & 2,2,2,2,2,2,1,1,1,2,2,2, & 2,2,2,2,2,2,1,1,1,2,2,2, & 2,2,2,2,2,2,1,1,1,2,2,2, & 2,2,2,2,2,2,2,2,2,1,1,1, & 2,2,2,2,2,2,2,2,2,1,1,1, & 2,2,2,2,2,2,2,2,2,1,1,1 & ],shape(FCC_INTERACTIONTRANSTRANS)) !< Trans-trans interaction types for fcc if (len_trim(structure) /= 3) & call IO_error(137,ext_msg='lattice_interaction_TransByTrans: '//trim(structure)) if(structure == 'fcc') then interactionTypes = FCC_INTERACTIONTRANSTRANS NtransMax = FCC_NTRANSSYSTEM else call IO_error(137,ext_msg='lattice_interaction_TransByTrans: '//trim(structure)) end if interactionMatrix = buildInteraction(Ntrans,Ntrans,NtransMax,NtransMax,interactionValues,interactionTypes) end function lattice_interaction_TransByTrans !-------------------------------------------------------------------------------------------------- !> @brief Slip-twin interaction matrix !> details only active slip and twin systems are considered !-------------------------------------------------------------------------------------------------- function lattice_interaction_SlipByTwin(Nslip,Ntwin,interactionValues,structure) result(interactionMatrix) integer, dimension(:), intent(in) :: Nslip, & !< number of active slip systems per family Ntwin !< number of active twin systems per family real(pReal), dimension(:), intent(in) :: interactionValues !< values for slip-twin interaction character(len=*), intent(in) :: structure !< lattice structure real(pReal), dimension(sum(Nslip),sum(Ntwin)) :: interactionMatrix integer, dimension(:), allocatable :: NslipMax, & NtwinMax integer, dimension(:,:), allocatable :: interactionTypes integer, dimension(FCC_NTWIN,FCC_NSLIP), parameter :: & FCC_INTERACTIONSLIPTWIN = reshape( [& 1,1,1,3,3,3,2,2,2,3,3,3, & ! -----> twin (acting) 1,1,1,3,3,3,3,3,3,2,2,2, & ! | 1,1,1,2,2,2,3,3,3,3,3,3, & ! | 3,3,3,1,1,1,3,3,3,2,2,2, & ! v 3,3,3,1,1,1,2,2,2,3,3,3, & ! slip (reacting) 2,2,2,1,1,1,3,3,3,3,3,3, & 2,2,2,3,3,3,1,1,1,3,3,3, & 3,3,3,2,2,2,1,1,1,3,3,3, & 3,3,3,3,3,3,1,1,1,2,2,2, & 3,3,3,2,2,2,3,3,3,1,1,1, & 2,2,2,3,3,3,3,3,3,1,1,1, & 3,3,3,3,3,3,2,2,2,1,1,1, & 4,4,4,4,4,4,4,4,4,4,4,4, & 4,4,4,4,4,4,4,4,4,4,4,4, & 4,4,4,4,4,4,4,4,4,4,4,4, & 4,4,4,4,4,4,4,4,4,4,4,4, & 4,4,4,4,4,4,4,4,4,4,4,4, & 4,4,4,4,4,4,4,4,4,4,4,4 & ],shape(FCC_INTERACTIONSLIPTWIN)) !< Slip-twin interaction types for fcc !< 1: coplanar interaction !< 2: screw trace between slip system and twin habit plane (easy cross slip) !< 3: other interaction integer, dimension(BCC_NTWIN,BCC_NSLIP), parameter :: & BCC_INTERACTIONSLIPTWIN = reshape( [& 3,3,3,2,2,3,3,3,3,2,3,3, & ! -----> twin (acting) 3,3,2,3,3,2,3,3,2,3,3,3, & ! | 3,2,3,3,3,3,2,3,3,3,3,2, & ! | 2,3,3,3,3,3,3,2,3,3,2,3, & ! v 2,3,3,3,3,3,3,2,3,3,2,3, & ! slip (reacting) 3,3,2,3,3,2,3,3,2,3,3,3, & 3,2,3,3,3,3,2,3,3,3,3,2, & 3,3,3,2,2,3,3,3,3,2,3,3, & 2,3,3,3,3,3,3,2,3,3,2,3, & 3,3,3,2,2,3,3,3,3,2,3,3, & 3,2,3,3,3,3,2,3,3,3,3,2, & 3,3,2,3,3,2,3,3,2,3,3,3, & ! 1,3,3,3,3,3,3,2,3,3,2,3, & 3,1,3,3,3,3,2,3,3,3,3,2, & 3,3,1,3,3,2,3,3,2,3,3,3, & 3,3,3,1,2,3,3,3,3,2,3,3, & 3,3,3,2,1,3,3,3,3,2,3,3, & 3,3,2,3,3,1,3,3,2,3,3,3, & 3,2,3,3,3,3,1,3,3,3,3,2, & 2,3,3,3,3,3,3,1,3,3,2,3, & 3,3,2,3,3,2,3,3,1,3,3,3, & 3,3,3,2,2,3,3,3,3,1,3,3, & 2,3,3,3,3,3,3,2,3,3,1,3, & 3,2,3,3,3,3,2,3,3,3,3,1 & ],shape(BCC_INTERACTIONSLIPTWIN)) !< Slip-twin interaction types for bcc !< 1: coplanar interaction !< 2: screw trace between slip system and twin habit plane (easy cross slip) !< 3: other interaction integer, dimension(HEX_NTWIN,HEX_NSLIP), parameter :: & HEX_INTERACTIONSLIPTWIN = reshape( [& 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4, & ! ----> twin (acting) 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4, & ! | 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4, & ! | ! v 5, 5, 5, 5, 5, 5, 6, 6, 6, 6, 6, 6, 7, 7, 7, 7, 7, 7, 8, 8, 8, 8, 8, 8, & ! slip (reacting) 5, 5, 5, 5, 5, 5, 6, 6, 6, 6, 6, 6, 7, 7, 7, 7, 7, 7, 8, 8, 8, 8, 8, 8, & 5, 5, 5, 5, 5, 5, 6, 6, 6, 6, 6, 6, 7, 7, 7, 7, 7, 7, 8, 8, 8, 8, 8, 8, & ! 9, 9, 9, 9, 9, 9, 10,10,10,10,10,10, 11,11,11,11,11,11, 12,12,12,12,12,12, & 9, 9, 9, 9, 9, 9, 10,10,10,10,10,10, 11,11,11,11,11,11, 12,12,12,12,12,12, & 9, 9, 9, 9, 9, 9, 10,10,10,10,10,10, 11,11,11,11,11,11, 12,12,12,12,12,12, & ! 13,13,13,13,13,13, 14,14,14,14,14,14, 15,15,15,15,15,15, 16,16,16,16,16,16, & 13,13,13,13,13,13, 14,14,14,14,14,14, 15,15,15,15,15,15, 16,16,16,16,16,16, & 13,13,13,13,13,13, 14,14,14,14,14,14, 15,15,15,15,15,15, 16,16,16,16,16,16, & 13,13,13,13,13,13, 14,14,14,14,14,14, 15,15,15,15,15,15, 16,16,16,16,16,16, & 13,13,13,13,13,13, 14,14,14,14,14,14, 15,15,15,15,15,15, 16,16,16,16,16,16, & 13,13,13,13,13,13, 14,14,14,14,14,14, 15,15,15,15,15,15, 16,16,16,16,16,16, & ! 17,17,17,17,17,17, 18,18,18,18,18,18, 19,19,19,19,19,19, 20,20,20,20,20,20, & 17,17,17,17,17,17, 18,18,18,18,18,18, 19,19,19,19,19,19, 20,20,20,20,20,20, & 17,17,17,17,17,17, 18,18,18,18,18,18, 19,19,19,19,19,19, 20,20,20,20,20,20, & 17,17,17,17,17,17, 18,18,18,18,18,18, 19,19,19,19,19,19, 20,20,20,20,20,20, & 17,17,17,17,17,17, 18,18,18,18,18,18, 19,19,19,19,19,19, 20,20,20,20,20,20, & 17,17,17,17,17,17, 18,18,18,18,18,18, 19,19,19,19,19,19, 20,20,20,20,20,20, & 17,17,17,17,17,17, 18,18,18,18,18,18, 19,19,19,19,19,19, 20,20,20,20,20,20, & 17,17,17,17,17,17, 18,18,18,18,18,18, 19,19,19,19,19,19, 20,20,20,20,20,20, & 17,17,17,17,17,17, 18,18,18,18,18,18, 19,19,19,19,19,19, 20,20,20,20,20,20, & 17,17,17,17,17,17, 18,18,18,18,18,18, 19,19,19,19,19,19, 20,20,20,20,20,20, & 17,17,17,17,17,17, 18,18,18,18,18,18, 19,19,19,19,19,19, 20,20,20,20,20,20, & 17,17,17,17,17,17, 18,18,18,18,18,18, 19,19,19,19,19,19, 20,20,20,20,20,20, & ! 21,21,21,21,21,21, 22,22,22,22,22,22, 23,23,23,23,23,23, 24,24,24,24,24,24, & 21,21,21,21,21,21, 22,22,22,22,22,22, 23,23,23,23,23,23, 24,24,24,24,24,24, & 21,21,21,21,21,21, 22,22,22,22,22,22, 23,23,23,23,23,23, 24,24,24,24,24,24, & 21,21,21,21,21,21, 22,22,22,22,22,22, 23,23,23,23,23,23, 24,24,24,24,24,24, & 21,21,21,21,21,21, 22,22,22,22,22,22, 23,23,23,23,23,23, 24,24,24,24,24,24, & 21,21,21,21,21,21, 22,22,22,22,22,22, 23,23,23,23,23,23, 24,24,24,24,24,24 & ! ],shape(HEX_INTERACTIONSLIPTWIN)) !< Slip-twin interaction types for hex if (len_trim(structure) /= 3) & call IO_error(137,ext_msg='lattice_interaction_SlipByTwin: '//trim(structure)) select case(structure) case('fcc') interactionTypes = FCC_INTERACTIONSLIPTWIN NslipMax = FCC_NSLIPSYSTEM NtwinMax = FCC_NTWINSYSTEM case('bcc') interactionTypes = BCC_INTERACTIONSLIPTWIN NslipMax = BCC_NSLIPSYSTEM NtwinMax = BCC_NTWINSYSTEM case('hex') interactionTypes = HEX_INTERACTIONSLIPTWIN NslipMax = HEX_NSLIPSYSTEM NtwinMax = HEX_NTWINSYSTEM case default call IO_error(137,ext_msg='lattice_interaction_SlipByTwin: '//trim(structure)) end select interactionMatrix = buildInteraction(Nslip,Ntwin,NslipMax,NtwinMax,interactionValues,interactionTypes) end function lattice_interaction_SlipByTwin !-------------------------------------------------------------------------------------------------- !> @brief Slip-trans interaction matrix !> details only active slip and trans systems are considered !-------------------------------------------------------------------------------------------------- function lattice_interaction_SlipByTrans(Nslip,Ntrans,interactionValues,structure) result(interactionMatrix) integer, dimension(:), intent(in) :: Nslip, & !< number of active slip systems per family Ntrans !< number of active trans systems per family real(pReal), dimension(:), intent(in) :: interactionValues !< values for slip-trans interaction character(len=*), intent(in) :: structure !< lattice structure (parent crystal) real(pReal), dimension(sum(Nslip),sum(Ntrans)) :: interactionMatrix integer, dimension(:), allocatable :: NslipMax, & NtransMax integer, dimension(:,:), allocatable :: interactionTypes integer, dimension(FCC_NTRANS,FCC_NSLIP), parameter :: & FCC_INTERACTIONSLIPTRANS = reshape( [& 1,1,1,3,3,3,2,2,2,3,3,3, & ! -----> trans (acting) 1,1,1,3,3,3,3,3,3,2,2,2, & ! | 1,1,1,2,2,2,3,3,3,3,3,3, & ! | 3,3,3,1,1,1,3,3,3,2,2,2, & ! v 3,3,3,1,1,1,2,2,2,3,3,3, & ! slip (reacting) 2,2,2,1,1,1,3,3,3,3,3,3, & 2,2,2,3,3,3,1,1,1,3,3,3, & 3,3,3,2,2,2,1,1,1,3,3,3, & 3,3,3,3,3,3,1,1,1,2,2,2, & 3,3,3,2,2,2,3,3,3,1,1,1, & 2,2,2,3,3,3,3,3,3,1,1,1, & 3,3,3,3,3,3,2,2,2,1,1,1, & 4,4,4,4,4,4,4,4,4,4,4,4, & 4,4,4,4,4,4,4,4,4,4,4,4, & 4,4,4,4,4,4,4,4,4,4,4,4, & 4,4,4,4,4,4,4,4,4,4,4,4, & 4,4,4,4,4,4,4,4,4,4,4,4, & 4,4,4,4,4,4,4,4,4,4,4,4 & ],shape(FCC_INTERACTIONSLIPTRANS)) !< Slip-trans interaction types for fcc if (len_trim(structure) /= 3) & call IO_error(137,ext_msg='lattice_interaction_SlipByTrans: '//trim(structure)) select case(structure) case('fcc') interactionTypes = FCC_INTERACTIONSLIPTRANS NslipMax = FCC_NSLIPSYSTEM NtransMax = FCC_NTRANSSYSTEM case default call IO_error(137,ext_msg='lattice_interaction_SlipByTrans: '//trim(structure)) end select interactionMatrix = buildInteraction(Nslip,Ntrans,NslipMax,NtransMax,interactionValues,interactionTypes) end function lattice_interaction_SlipByTrans !-------------------------------------------------------------------------------------------------- !> @brief Twin-slip interaction matrix !> details only active twin and slip systems are considered !-------------------------------------------------------------------------------------------------- function lattice_interaction_TwinBySlip(Ntwin,Nslip,interactionValues,structure) result(interactionMatrix) integer, dimension(:), intent(in) :: Ntwin, & !< number of active twin systems per family Nslip !< number of active slip systems per family real(pReal), dimension(:), intent(in) :: interactionValues !< values for twin-twin interaction character(len=*), intent(in) :: structure !< lattice structure real(pReal), dimension(sum(Ntwin),sum(Nslip)) :: interactionMatrix integer, dimension(:), allocatable :: NtwinMax, & NslipMax integer, dimension(:,:), allocatable :: interactionTypes integer, dimension(FCC_NSLIP,FCC_NTWIN), parameter :: & FCC_INTERACTIONTWINSLIP = 1 !< Twin-slip interaction types for fcc integer, dimension(BCC_NSLIP,BCC_NTWIN), parameter :: & BCC_INTERACTIONTWINSLIP = 1 !< Twin-slip interaction types for bcc integer, dimension(HEX_NSLIP,HEX_NTWIN), parameter :: & HEX_INTERACTIONTWINSLIP = reshape( [& 1, 1, 1, 5, 5, 5, 9, 9, 9, 13,13,13,13,13,13, 17,17,17,17,17,17,17,17,17,17,17,17, 21,21,21,21,21,21, & ! ----> slip (acting) 1, 1, 1, 5, 5, 5, 9, 9, 9, 13,13,13,13,13,13, 17,17,17,17,17,17,17,17,17,17,17,17, 21,21,21,21,21,21, & ! | 1, 1, 1, 5, 5, 5, 9, 9, 9, 13,13,13,13,13,13, 17,17,17,17,17,17,17,17,17,17,17,17, 21,21,21,21,21,21, & ! | 1, 1, 1, 5, 5, 5, 9, 9, 9, 13,13,13,13,13,13, 17,17,17,17,17,17,17,17,17,17,17,17, 21,21,21,21,21,21, & ! v 1, 1, 1, 5, 5, 5, 9, 9, 9, 13,13,13,13,13,13, 17,17,17,17,17,17,17,17,17,17,17,17, 21,21,21,21,21,21, & ! twin (reacting) 1, 1, 1, 5, 5, 5, 9, 9, 9, 13,13,13,13,13,13, 17,17,17,17,17,17,17,17,17,17,17,17, 21,21,21,21,21,21, & ! 2, 2, 2, 6, 6, 6, 10,10,10, 14,14,14,14,14,14, 18,18,18,18,18,18,18,18,18,18,18,18, 22,22,22,22,22,22, & 2, 2, 2, 6, 6, 6, 10,10,10, 14,14,14,14,14,14, 18,18,18,18,18,18,18,18,18,18,18,18, 22,22,22,22,22,22, & 2, 2, 2, 6, 6, 6, 10,10,10, 14,14,14,14,14,14, 18,18,18,18,18,18,18,18,18,18,18,18, 22,22,22,22,22,22, & 2, 2, 2, 6, 6, 6, 10,10,10, 14,14,14,14,14,14, 18,18,18,18,18,18,18,18,18,18,18,18, 22,22,22,22,22,22, & 2, 2, 2, 6, 6, 6, 10,10,10, 14,14,14,14,14,14, 18,18,18,18,18,18,18,18,18,18,18,18, 22,22,22,22,22,22, & 2, 2, 2, 6, 6, 6, 10,10,10, 14,14,14,14,14,14, 18,18,18,18,18,18,18,18,18,18,18,18, 22,22,22,22,22,22, & ! 3, 3, 3, 7, 7, 7, 11,11,11, 15,15,15,15,15,15, 19,19,19,19,19,19,19,19,19,19,19,19, 23,23,23,23,23,23, & 3, 3, 3, 7, 7, 7, 11,11,11, 15,15,15,15,15,15, 19,19,19,19,19,19,19,19,19,19,19,19, 23,23,23,23,23,23, & 3, 3, 3, 7, 7, 7, 11,11,11, 15,15,15,15,15,15, 19,19,19,19,19,19,19,19,19,19,19,19, 23,23,23,23,23,23, & 3, 3, 3, 7, 7, 7, 11,11,11, 15,15,15,15,15,15, 19,19,19,19,19,19,19,19,19,19,19,19, 23,23,23,23,23,23, & 3, 3, 3, 7, 7, 7, 11,11,11, 15,15,15,15,15,15, 19,19,19,19,19,19,19,19,19,19,19,19, 23,23,23,23,23,23, & 3, 3, 3, 7, 7, 7, 11,11,11, 15,15,15,15,15,15, 19,19,19,19,19,19,19,19,19,19,19,19, 23,23,23,23,23,23, & ! 4, 4, 4, 8, 8, 8, 12,12,12, 16,16,16,16,16,16, 20,20,20,20,20,20,20,20,20,20,20,20, 24,24,24,24,24,24, & 4, 4, 4, 8, 8, 8, 12,12,12, 16,16,16,16,16,16, 20,20,20,20,20,20,20,20,20,20,20,20, 24,24,24,24,24,24, & 4, 4, 4, 8, 8, 8, 12,12,12, 16,16,16,16,16,16, 20,20,20,20,20,20,20,20,20,20,20,20, 24,24,24,24,24,24, & 4, 4, 4, 8, 8, 8, 12,12,12, 16,16,16,16,16,16, 20,20,20,20,20,20,20,20,20,20,20,20, 24,24,24,24,24,24, & 4, 4, 4, 8, 8, 8, 12,12,12, 16,16,16,16,16,16, 20,20,20,20,20,20,20,20,20,20,20,20, 24,24,24,24,24,24, & 4, 4, 4, 8, 8, 8, 12,12,12, 16,16,16,16,16,16, 20,20,20,20,20,20,20,20,20,20,20,20, 24,24,24,24,24,24 & ],shape(HEX_INTERACTIONTWINSLIP)) !< Twin-slip interaction types for hex if (len_trim(structure) /= 3) & call IO_error(137,ext_msg='lattice_interaction_TwinBySlip: '//trim(structure)) select case(structure) case('fcc') interactionTypes = FCC_INTERACTIONTWINSLIP NtwinMax = FCC_NTWINSYSTEM NslipMax = FCC_NSLIPSYSTEM case('bcc') interactionTypes = BCC_INTERACTIONTWINSLIP NtwinMax = BCC_NTWINSYSTEM NslipMax = BCC_NSLIPSYSTEM case('hex') interactionTypes = HEX_INTERACTIONTWINSLIP NtwinMax = HEX_NTWINSYSTEM NslipMax = HEX_NSLIPSYSTEM case default call IO_error(137,ext_msg='lattice_interaction_TwinBySlip: '//trim(structure)) end select interactionMatrix = buildInteraction(Ntwin,Nslip,NtwinMax,NslipMax,interactionValues,interactionTypes) end function lattice_interaction_TwinBySlip !-------------------------------------------------------------------------------------------------- !> @brief Schmid matrix for slip !> details only active slip systems are considered !-------------------------------------------------------------------------------------------------- function lattice_SchmidMatrix_slip(Nslip,structure,cOverA) result(SchmidMatrix) integer, dimension(:), intent(in) :: Nslip !< number of active slip systems per family character(len=*), intent(in) :: structure !< lattice structure real(pReal), intent(in) :: cOverA real(pReal), dimension(3,3,sum(Nslip)) :: SchmidMatrix real(pReal), dimension(3,3,sum(Nslip)) :: coordinateSystem real(pReal), dimension(:,:), allocatable :: slipSystems integer, dimension(:), allocatable :: NslipMax integer :: i if (len_trim(structure) /= 3) & call IO_error(137,ext_msg='lattice_SchmidMatrix_slip: '//trim(structure)) select case(structure) case('fcc') NslipMax = FCC_NSLIPSYSTEM slipSystems = FCC_SYSTEMSLIP case('bcc') NslipMax = BCC_NSLIPSYSTEM slipSystems = BCC_SYSTEMSLIP case('hex') NslipMax = HEX_NSLIPSYSTEM slipSystems = HEX_SYSTEMSLIP case('bct') NslipMax = BCT_NSLIPSYSTEM slipSystems = BCT_SYSTEMSLIP case default call IO_error(137,ext_msg='lattice_SchmidMatrix_slip: '//trim(structure)) end select if (any(NslipMax(1:size(Nslip)) - Nslip < 0)) & call IO_error(145,ext_msg='Nslip '//trim(structure)) if (any(Nslip < 0)) & call IO_error(144,ext_msg='Nslip '//trim(structure)) coordinateSystem = buildCoordinateSystem(Nslip,NslipMax,slipSystems,structure,cOverA) do i = 1, sum(Nslip) SchmidMatrix(1:3,1:3,i) = math_outer(coordinateSystem(1:3,1,i),coordinateSystem(1:3,2,i)) if (abs(math_trace33(SchmidMatrix(1:3,1:3,i))) > tol_math_check) & call IO_error(0,i,ext_msg = 'dilatational Schmid matrix for slip') enddo end function lattice_SchmidMatrix_slip !-------------------------------------------------------------------------------------------------- !> @brief Schmid matrix for twinning !> details only active twin systems are considered !-------------------------------------------------------------------------------------------------- function lattice_SchmidMatrix_twin(Ntwin,structure,cOverA) result(SchmidMatrix) integer, dimension(:), intent(in) :: Ntwin !< number of active twin systems per family character(len=*), intent(in) :: structure !< lattice structure real(pReal), intent(in) :: cOverA !< c/a ratio real(pReal), dimension(3,3,sum(Ntwin)) :: SchmidMatrix real(pReal), dimension(3,3,sum(Ntwin)) :: coordinateSystem real(pReal), dimension(:,:), allocatable :: twinSystems integer, dimension(:), allocatable :: NtwinMax integer :: i if (len_trim(structure) /= 3) & call IO_error(137,ext_msg='lattice_SchmidMatrix_twin: '//trim(structure)) select case(structure) case('fcc') NtwinMax = FCC_NTWINSYSTEM twinSystems = FCC_SYSTEMTWIN case('bcc') NtwinMax = BCC_NTWINSYSTEM twinSystems = BCC_SYSTEMTWIN case('hex') NtwinMax = HEX_NTWINSYSTEM twinSystems = HEX_SYSTEMTWIN case default call IO_error(137,ext_msg='lattice_SchmidMatrix_twin: '//trim(structure)) end select if (any(NtwinMax(1:size(Ntwin)) - Ntwin < 0)) & call IO_error(145,ext_msg='Ntwin '//trim(structure)) if (any(Ntwin < 0)) & call IO_error(144,ext_msg='Ntwin '//trim(structure)) coordinateSystem = buildCoordinateSystem(Ntwin,NtwinMax,twinSystems,structure,cOverA) do i = 1, sum(Ntwin) SchmidMatrix(1:3,1:3,i) = math_outer(coordinateSystem(1:3,1,i),coordinateSystem(1:3,2,i)) if (abs(math_trace33(SchmidMatrix(1:3,1:3,i))) > tol_math_check) & call IO_error(0,i,ext_msg = 'dilatational Schmid matrix for twin') enddo end function lattice_SchmidMatrix_twin !-------------------------------------------------------------------------------------------------- !> @brief Schmid matrix for twinning !> details only active twin systems are considered !-------------------------------------------------------------------------------------------------- function lattice_SchmidMatrix_trans(Ntrans,structure_target,cOverA,a_bcc,a_fcc) result(SchmidMatrix) integer, dimension(:), intent(in) :: Ntrans !< number of active twin systems per family character(len=*), intent(in) :: structure_target !< lattice structure real(pReal), intent(in) :: cOverA !< c/a ratio real(pReal), dimension(3,3,sum(Ntrans)) :: SchmidMatrix real(pReal), dimension(3,3,sum(Ntrans)) :: devNull real(pReal) :: a_bcc, a_fcc if (len_trim(structure_target) /= 3) & call IO_error(137,ext_msg='lattice_SchmidMatrix_trans: '//trim(structure_target)) if (structure_target(1:3) /= 'bcc' .and. structure_target(1:3) /= 'hex') & call IO_error(137,ext_msg='lattice_SchmidMatrix_trans: '//trim(structure_target)) if (structure_target(1:3) == 'hex' .and. (cOverA < 1.0_pReal .or. cOverA > 2.0_pReal)) & call IO_error(131,ext_msg='lattice_SchmidMatrix_trans: '//trim(structure_target)) if (structure_target(1:3) == 'bcc' .and. (a_bcc <= 0.0_pReal .or. a_fcc <= 0.0_pReal)) & call IO_error(134,ext_msg='lattice_SchmidMatrix_trans: '//trim(structure_target)) call buildTransformationSystem(devNull,SchmidMatrix,Ntrans,cOverA,a_fcc,a_bcc) end function lattice_SchmidMatrix_trans !-------------------------------------------------------------------------------------------------- !> @brief Schmid matrix for cleavage !> details only active cleavage systems are considered !-------------------------------------------------------------------------------------------------- function lattice_SchmidMatrix_cleavage(Ncleavage,structure,cOverA) result(SchmidMatrix) integer, dimension(:), intent(in) :: Ncleavage !< number of active cleavage systems per family character(len=*), intent(in) :: structure !< lattice structure real(pReal), intent(in) :: cOverA !< c/a ratio real(pReal), dimension(3,3,3,sum(Ncleavage)) :: SchmidMatrix real(pReal), dimension(3,3,sum(Ncleavage)) :: coordinateSystem real(pReal), dimension(:,:), allocatable :: cleavageSystems integer, dimension(:), allocatable :: NcleavageMax integer :: i if (len_trim(structure) /= 3) & call IO_error(137,ext_msg='lattice_SchmidMatrix_cleavage: '//trim(structure)) select case(structure) case('ort') NcleavageMax = ORT_NCLEAVAGESYSTEM cleavageSystems = ORT_SYSTEMCLEAVAGE case('fcc') NcleavageMax = FCC_NCLEAVAGESYSTEM cleavageSystems = FCC_SYSTEMCLEAVAGE case('bcc') NcleavageMax = BCC_NCLEAVAGESYSTEM cleavageSystems = BCC_SYSTEMCLEAVAGE case default call IO_error(137,ext_msg='lattice_SchmidMatrix_cleavage: '//trim(structure)) end select if (any(NcleavageMax(1:size(Ncleavage)) - Ncleavage < 0)) & call IO_error(145,ext_msg='Ncleavage '//trim(structure)) if (any(Ncleavage < 0)) & call IO_error(144,ext_msg='Ncleavage '//trim(structure)) coordinateSystem = buildCoordinateSystem(Ncleavage,NcleavageMax,cleavageSystems,structure,cOverA) do i = 1, sum(Ncleavage) SchmidMatrix(1:3,1:3,1,i) = math_outer(coordinateSystem(1:3,1,i),coordinateSystem(1:3,2,i)) SchmidMatrix(1:3,1:3,2,i) = math_outer(coordinateSystem(1:3,3,i),coordinateSystem(1:3,2,i)) SchmidMatrix(1:3,1:3,3,i) = math_outer(coordinateSystem(1:3,2,i),coordinateSystem(1:3,2,i)) enddo end function lattice_SchmidMatrix_cleavage !-------------------------------------------------------------------------------------------------- !> @brief Slip direction of slip systems (|| b) !-------------------------------------------------------------------------------------------------- function lattice_slip_direction(Nslip,structure,cOverA) result(d) integer, dimension(:), intent(in) :: Nslip !< number of active slip systems per family character(len=*), intent(in) :: structure !< lattice structure real(pReal), intent(in) :: cOverA !< c/a ratio real(pReal), dimension(3,sum(Nslip)) :: d real(pReal), dimension(3,3,sum(Nslip)) :: coordinateSystem coordinateSystem = coordinateSystem_slip(Nslip,structure,cOverA) d = coordinateSystem(1:3,1,1:sum(Nslip)) end function lattice_slip_direction !-------------------------------------------------------------------------------------------------- !> @brief Normal direction of slip systems (|| n) !-------------------------------------------------------------------------------------------------- function lattice_slip_normal(Nslip,structure,cOverA) result(n) integer, dimension(:), intent(in) :: Nslip !< number of active slip systems per family character(len=*), intent(in) :: structure !< lattice structure real(pReal), intent(in) :: cOverA !< c/a ratio real(pReal), dimension(3,sum(Nslip)) :: n real(pReal), dimension(3,3,sum(Nslip)) :: coordinateSystem coordinateSystem = coordinateSystem_slip(Nslip,structure,cOverA) n = coordinateSystem(1:3,2,1:sum(Nslip)) end function lattice_slip_normal !-------------------------------------------------------------------------------------------------- !> @brief Transverse direction of slip systems ( || t = b x n) !-------------------------------------------------------------------------------------------------- function lattice_slip_transverse(Nslip,structure,cOverA) result(t) integer, dimension(:), intent(in) :: Nslip !< number of active slip systems per family character(len=*), intent(in) :: structure !< lattice structure real(pReal), intent(in) :: cOverA !< c/a ratio real(pReal), dimension(3,sum(Nslip)) :: t real(pReal), dimension(3,3,sum(Nslip)) :: coordinateSystem coordinateSystem = coordinateSystem_slip(Nslip,structure,cOverA) t = coordinateSystem(1:3,3,1:sum(Nslip)) end function lattice_slip_transverse !-------------------------------------------------------------------------------------------------- !> @brief Labels for slip systems !> details only active slip systems are considered !-------------------------------------------------------------------------------------------------- function lattice_labels_slip(Nslip,structure) result(labels) integer, dimension(:), intent(in) :: Nslip !< number of active slip systems per family character(len=*), intent(in) :: structure !< lattice structure character(len=:), dimension(:), allocatable :: labels real(pReal), dimension(:,:), allocatable :: slipSystems integer, dimension(:), allocatable :: NslipMax if (len_trim(structure) /= 3) & call IO_error(137,ext_msg='lattice_labels_slip: '//trim(structure)) select case(structure) case('fcc') NslipMax = FCC_NSLIPSYSTEM slipSystems = FCC_SYSTEMSLIP case('bcc') NslipMax = BCC_NSLIPSYSTEM slipSystems = BCC_SYSTEMSLIP case('hex') NslipMax = HEX_NSLIPSYSTEM slipSystems = HEX_SYSTEMSLIP case('bct') NslipMax = BCT_NSLIPSYSTEM slipSystems = BCT_SYSTEMSLIP case default call IO_error(137,ext_msg='lattice_labels_slip: '//trim(structure)) end select if (any(NslipMax(1:size(Nslip)) - Nslip < 0)) & call IO_error(145,ext_msg='Nslip '//trim(structure)) if (any(Nslip < 0)) & call IO_error(144,ext_msg='Nslip '//trim(structure)) labels = getLabels(Nslip,NslipMax,slipSystems) end function lattice_labels_slip !-------------------------------------------------------------------------------------------------- !> @brief Return 3x3 tensor with symmetry according to given crystal structure !-------------------------------------------------------------------------------------------------- function lattice_applyLatticeSymmetry33(T,structure) result(T_sym) real(pReal), dimension(3,3) :: T_sym real(pReal), dimension(3,3), intent(in) :: T character(len=*), intent(in) :: structure integer :: k T_sym = 0.0_pReal if (len_trim(structure) /= 3) & call IO_error(137,ext_msg='lattice_applyLatticeSymmetry33: '//trim(structure)) select case(structure) case('iso','fcc','bcc') do k=1,3 T_sym(k,k) = T(1,1) enddo case('hex') T_sym(1,1) = T(1,1) T_sym(2,2) = T(1,1) T_sym(3,3) = T(3,3) case('ort','bct') T_sym(1,1) = T(1,1) T_sym(2,2) = T(2,2) T_sym(3,3) = T(3,3) case default call IO_error(137,ext_msg='lattice_applyLatticeSymmetry33: '//trim(structure)) end select end function lattice_applyLatticeSymmetry33 !-------------------------------------------------------------------------------------------------- !> @brief Return stiffness matrix in 6x6 notation with symmetry according to given crystal structure !> @details J. A. Rayne and B. S. Chandrasekhar Phys. Rev. 120, 1658 Erratum Phys. Rev. 122, 1962 !-------------------------------------------------------------------------------------------------- function applyLatticeSymmetryC66(C66,structure) result(C66_sym) real(pReal), dimension(6,6) :: C66_sym real(pReal), dimension(6,6), intent(in) :: C66 character(len=*), intent(in) :: structure integer :: j,k C66_sym = 0.0_pReal if (len_trim(structure) /= 3) & call IO_error(137,ext_msg='applyLatticeSymmetryC66: '//trim(structure)) select case(structure) case ('iso') do k=1,3 do j=1,3 C66_sym(k,j) = C66(1,2) enddo C66_sym(k,k) = C66(1,1) C66_sym(k+3,k+3) = 0.5_pReal*(C66(1,1)-C66(1,2)) enddo case ('fcc','bcc') do k=1,3 do j=1,3 C66_sym(k,j) = C66(1,2) enddo C66_sym(k,k) = C66(1,1) C66_sym(k+3,k+3) = C66(4,4) enddo case ('hex') C66_sym(1,1) = C66(1,1) C66_sym(2,2) = C66(1,1) C66_sym(3,3) = C66(3,3) C66_sym(1,2) = C66(1,2) C66_sym(2,1) = C66(1,2) C66_sym(1,3) = C66(1,3) C66_sym(3,1) = C66(1,3) C66_sym(2,3) = C66(1,3) C66_sym(3,2) = C66(1,3) C66_sym(4,4) = C66(4,4) C66_sym(5,5) = C66(4,4) C66_sym(6,6) = 0.5_pReal*(C66(1,1)-C66(1,2)) case ('ort') C66_sym(1,1) = C66(1,1) C66_sym(2,2) = C66(2,2) C66_sym(3,3) = C66(3,3) C66_sym(1,2) = C66(1,2) C66_sym(2,1) = C66(1,2) C66_sym(1,3) = C66(1,3) C66_sym(3,1) = C66(1,3) C66_sym(2,3) = C66(2,3) C66_sym(3,2) = C66(2,3) C66_sym(4,4) = C66(4,4) C66_sym(5,5) = C66(5,5) C66_sym(6,6) = C66(6,6) case ('bct') C66_sym(1,1) = C66(1,1) C66_sym(2,2) = C66(1,1) C66_sym(3,3) = C66(3,3) C66_sym(1,2) = C66(1,2) C66_sym(2,1) = C66(1,2) C66_sym(1,3) = C66(1,3) C66_sym(3,1) = C66(1,3) C66_sym(2,3) = C66(1,3) C66_sym(3,2) = C66(1,3) C66_sym(4,4) = C66(4,4) C66_sym(5,5) = C66(4,4) C66_sym(6,6) = C66(6,6) case default call IO_error(137,ext_msg='applyLatticeSymmetryC66: '//trim(structure)) end select end function applyLatticeSymmetryC66 !-------------------------------------------------------------------------------------------------- !> @brief Labels for twin systems !> details only active twin systems are considered !-------------------------------------------------------------------------------------------------- function lattice_labels_twin(Ntwin,structure) result(labels) integer, dimension(:), intent(in) :: Ntwin !< number of active slip systems per family character(len=*), intent(in) :: structure !< lattice structure character(len=:), dimension(:), allocatable :: labels real(pReal), dimension(:,:), allocatable :: twinSystems integer, dimension(:), allocatable :: NtwinMax if (len_trim(structure) /= 3) & call IO_error(137,ext_msg='lattice_labels_twin: '//trim(structure)) select case(structure) case('fcc') NtwinMax = FCC_NTWINSYSTEM twinSystems = FCC_SYSTEMTWIN case('bcc') NtwinMax = BCC_NTWINSYSTEM twinSystems = BCC_SYSTEMTWIN case('hex') NtwinMax = HEX_NTWINSYSTEM twinSystems = HEX_SYSTEMTWIN case default call IO_error(137,ext_msg='lattice_labels_twin: '//trim(structure)) end select if (any(NtwinMax(1:size(Ntwin)) - Ntwin < 0)) & call IO_error(145,ext_msg='Ntwin '//trim(structure)) if (any(Ntwin < 0)) & call IO_error(144,ext_msg='Ntwin '//trim(structure)) labels = getLabels(Ntwin,NtwinMax,twinSystems) end function lattice_labels_twin !-------------------------------------------------------------------------------------------------- !> @brief Projection of the transverse direction onto the slip plane !> @details: This projection is used to calculate forest hardening for edge dislocations !-------------------------------------------------------------------------------------------------- function slipProjection_transverse(Nslip,structure,cOverA) result(projection) integer, dimension(:), intent(in) :: Nslip !< number of active slip systems per family character(len=*), intent(in) :: structure !< lattice structure real(pReal), intent(in) :: cOverA !< c/a ratio real(pReal), dimension(sum(Nslip),sum(Nslip)) :: projection real(pReal), dimension(3,sum(Nslip)) :: n, t integer :: i, j n = lattice_slip_normal (Nslip,structure,cOverA) t = lattice_slip_transverse(Nslip,structure,cOverA) do i=1, sum(Nslip); do j=1, sum(Nslip) projection(i,j) = abs(math_inner(n(:,i),t(:,j))) enddo; enddo end function slipProjection_transverse !-------------------------------------------------------------------------------------------------- !> @brief Projection of the slip direction onto the slip plane !> @details: This projection is used to calculate forest hardening for screw dislocations !-------------------------------------------------------------------------------------------------- function slipProjection_direction(Nslip,structure,cOverA) result(projection) integer, dimension(:), intent(in) :: Nslip !< number of active slip systems per family character(len=*), intent(in) :: structure !< lattice structure real(pReal), intent(in) :: cOverA !< c/a ratio real(pReal), dimension(sum(Nslip),sum(Nslip)) :: projection real(pReal), dimension(3,sum(Nslip)) :: n, d integer :: i, j n = lattice_slip_normal (Nslip,structure,cOverA) d = lattice_slip_direction(Nslip,structure,cOverA) do i=1, sum(Nslip); do j=1, sum(Nslip) projection(i,j) = abs(math_inner(n(:,i),d(:,j))) enddo; enddo end function slipProjection_direction !-------------------------------------------------------------------------------------------------- !> @brief build a local coordinate system on slip systems !> @details Order: Direction, plane (normal), and common perpendicular !-------------------------------------------------------------------------------------------------- function coordinateSystem_slip(Nslip,structure,cOverA) result(coordinateSystem) integer, dimension(:), intent(in) :: Nslip !< number of active slip systems per family character(len=*), intent(in) :: structure !< lattice structure real(pReal), intent(in) :: cOverA !< c/a ratio real(pReal), dimension(3,3,sum(Nslip)) :: coordinateSystem real(pReal), dimension(:,:), allocatable :: slipSystems integer, dimension(:), allocatable :: NslipMax if (len_trim(structure) /= 3) & call IO_error(137,ext_msg='coordinateSystem_slip: '//trim(structure)) select case(structure) case('fcc') NslipMax = FCC_NSLIPSYSTEM slipSystems = FCC_SYSTEMSLIP case('bcc') NslipMax = BCC_NSLIPSYSTEM slipSystems = BCC_SYSTEMSLIP case('hex') NslipMax = HEX_NSLIPSYSTEM slipSystems = HEX_SYSTEMSLIP case('bct') NslipMax = BCT_NSLIPSYSTEM slipSystems = BCT_SYSTEMSLIP case default call IO_error(137,ext_msg='coordinateSystem_slip: '//trim(structure)) end select if (any(NslipMax(1:size(Nslip)) - Nslip < 0)) & call IO_error(145,ext_msg='Nslip '//trim(structure)) if (any(Nslip < 0)) & call IO_error(144,ext_msg='Nslip '//trim(structure)) coordinateSystem = buildCoordinateSystem(Nslip,NslipMax,slipSystems,structure,cOverA) end function coordinateSystem_slip !-------------------------------------------------------------------------------------------------- !> @brief Populates reduced interaction matrix !-------------------------------------------------------------------------------------------------- function buildInteraction(reacting_used,acting_used,reacting_max,acting_max,values,matrix) integer, dimension(:), intent(in) :: & reacting_used, & !< # of reacting systems per family as specified in material.config acting_used, & !< # of acting systems per family as specified in material.config reacting_max, & !< max # of reacting systems per family for given lattice acting_max !< max # of acting systems per family for given lattice real(pReal), dimension(:), intent(in) :: values !< interaction values integer, dimension(:,:), intent(in) :: matrix !< interaction types real(pReal), dimension(sum(reacting_used),sum(acting_used)) :: buildInteraction integer :: & acting_family_index, acting_family, acting_system, & reacting_family_index, reacting_family, reacting_system, & i,j,k,l do acting_family = 1,size(acting_used,1) acting_family_index = sum(acting_used(1:acting_family-1)) do acting_system = 1,acting_used(acting_family) do reacting_family = 1,size(reacting_used,1) reacting_family_index = sum(reacting_used(1:reacting_family-1)) do reacting_system = 1,reacting_used(reacting_family) i = sum( acting_max(1: acting_family-1)) + acting_system j = sum(reacting_max(1:reacting_family-1)) + reacting_system k = acting_family_index + acting_system l = reacting_family_index + reacting_system if (matrix(i,j) > size(values)) call IO_error(138,ext_msg='buildInteraction') buildInteraction(l,k) = values(matrix(i,j)) enddo; enddo enddo; enddo end function buildInteraction !-------------------------------------------------------------------------------------------------- !> @brief build a local coordinate system on slip, twin, trans, cleavage systems !> @details Order: Direction, plane (normal), and common perpendicular !-------------------------------------------------------------------------------------------------- function buildCoordinateSystem(active,potential,system,structure,cOverA) integer, dimension(:), intent(in) :: & active, & !< # of active systems per family potential !< # of potential systems per family real(pReal), dimension(:,:), intent(in) :: & system character(len=*), intent(in) :: & structure !< lattice structure real(pReal), intent(in) :: & cOverA real(pReal), dimension(3,3,sum(active)) :: & buildCoordinateSystem real(pReal), dimension(3) :: & direction, normal integer :: & a, & !< index of active system p, & !< index in potential system matrix f, & !< index of my family s !< index of my system in current family if (len_trim(structure) /= 3) & call IO_error(137,ext_msg='buildCoordinateSystem: '//trim(structure)) if (trim(structure) == 'bct' .and. cOverA > 2.0_pReal) & call IO_error(131,ext_msg='buildCoordinateSystem:'//trim(structure)) if (trim(structure) == 'hex' .and. (cOverA < 1.0_pReal .or. cOverA > 2.0_pReal)) & call IO_error(131,ext_msg='buildCoordinateSystem:'//trim(structure)) a = 0 activeFamilies: do f = 1,size(active,1) activeSystems: do s = 1,active(f) a = a + 1 p = sum(potential(1:f-1))+s select case(trim(structure)) case ('fcc','bcc','iso','ort','bct') direction = system(1:3,p) normal = system(4:6,p) case ('hex') direction = [ system(1,p)*1.5_pReal, & (system(1,p)+2.0_pReal*system(2,p))*sqrt(0.75_pReal), & system(4,p)*cOverA ] ! direction [uvtw]->[3u/2 (u+2v)*sqrt(3)/2 w*(p/a)]) normal = [ system(5,p), & (system(5,p)+2.0_pReal*system(6,p))/sqrt(3.0_pReal), & system(8,p)/cOverA ] ! plane (hkil)->(h (h+2k)/sqrt(3) l/(p/a)) case default call IO_error(137,ext_msg='buildCoordinateSystem: '//trim(structure)) end select buildCoordinateSystem(1:3,1,a) = direction/norm2(direction) buildCoordinateSystem(1:3,2,a) = normal /norm2(normal) buildCoordinateSystem(1:3,3,a) = math_cross(direction/norm2(direction),& normal /norm2(normal)) enddo activeSystems enddo activeFamilies end function buildCoordinateSystem !-------------------------------------------------------------------------------------------------- !> @brief Helper function to define transformation systems ! Needed to calculate Schmid matrix and rotated stiffness matrices. ! @details: set c/a = 0.0 for fcc -> bcc transformation ! set a_Xcc = 0.0 for fcc -> hex transformation !-------------------------------------------------------------------------------------------------- subroutine buildTransformationSystem(Q,S,Ntrans,cOverA,a_fcc,a_bcc) integer, dimension(:), intent(in) :: & Ntrans real(pReal), dimension(3,3,sum(Ntrans)), intent(out) :: & Q, & !< Total rotation: Q = R*B S !< Eigendeformation tensor for phase transformation real(pReal), intent(in) :: & cOverA, & !< c/a for target hex structure a_bcc, & !< lattice parameter a for target bcc structure a_fcc !< lattice parameter a for parent fcc structure type(rotation) :: & R, & !< Pitsch rotation B !< Rotation of fcc to Bain coordinate system real(pReal), dimension(3,3) :: & U, & !< Bain deformation ss, sd real(pReal), dimension(3) :: & x, y, z integer :: & i real(pReal), dimension(3+3,FCC_NTRANS), parameter :: & FCCTOHEX_SYSTEMTRANS = reshape(real( [& -2, 1, 1, 1, 1, 1, & 1,-2, 1, 1, 1, 1, & 1, 1,-2, 1, 1, 1, & 2,-1, 1, -1,-1, 1, & -1, 2, 1, -1,-1, 1, & -1,-1,-2, -1,-1, 1, & -2,-1,-1, 1,-1,-1, & 1, 2,-1, 1,-1,-1, & 1,-1, 2, 1,-1,-1, & 2, 1,-1, -1, 1,-1, & -1,-2,-1, -1, 1,-1, & -1, 1, 2, -1, 1,-1 & ],pReal),shape(FCCTOHEX_SYSTEMTRANS)) real(pReal), dimension(4,fcc_Ntrans), parameter :: & FCCTOBCC_SYSTEMTRANS = reshape([& 0.0, 1.0, 0.0, 10.26, & ! Pitsch OR (Ma & Hartmaier 2014, Table 3) 0.0,-1.0, 0.0, 10.26, & 0.0, 0.0, 1.0, 10.26, & 0.0, 0.0,-1.0, 10.26, & 1.0, 0.0, 0.0, 10.26, & -1.0, 0.0, 0.0, 10.26, & 0.0, 0.0, 1.0, 10.26, & 0.0, 0.0,-1.0, 10.26, & 1.0, 0.0, 0.0, 10.26, & -1.0, 0.0, 0.0, 10.26, & 0.0, 1.0, 0.0, 10.26, & 0.0,-1.0, 0.0, 10.26 & ],shape(FCCTOBCC_SYSTEMTRANS)) integer, dimension(9,fcc_Ntrans), parameter :: & FCCTOBCC_BAINVARIANT = reshape( [& 1, 0, 0, 0, 1, 0, 0, 0, 1, & ! Pitsch OR (Ma & Hartmaier 2014, Table 3) 1, 0, 0, 0, 1, 0, 0, 0, 1, & 1, 0, 0, 0, 1, 0, 0, 0, 1, & 1, 0, 0, 0, 1, 0, 0, 0, 1, & 0, 1, 0, 1, 0, 0, 0, 0, 1, & 0, 1, 0, 1, 0, 0, 0, 0, 1, & 0, 1, 0, 1, 0, 0, 0, 0, 1, & 0, 1, 0, 1, 0, 0, 0, 0, 1, & 0, 0, 1, 1, 0, 0, 0, 1, 0, & 0, 0, 1, 1, 0, 0, 0, 1, 0, & 0, 0, 1, 1, 0, 0, 0, 1, 0, & 0, 0, 1, 1, 0, 0, 0, 1, 0 & ],shape(FCCTOBCC_BAINVARIANT)) real(pReal), dimension(4,fcc_Ntrans), parameter :: & FCCTOBCC_BAINROT = reshape([& 1.0, 0.0, 0.0, 45.0, & ! Rotate fcc austensite to bain variant 1.0, 0.0, 0.0, 45.0, & 1.0, 0.0, 0.0, 45.0, & 1.0, 0.0, 0.0, 45.0, & 0.0, 1.0, 0.0, 45.0, & 0.0, 1.0, 0.0, 45.0, & 0.0, 1.0, 0.0, 45.0, & 0.0, 1.0, 0.0, 45.0, & 0.0, 0.0, 1.0, 45.0, & 0.0, 0.0, 1.0, 45.0, & 0.0, 0.0, 1.0, 45.0, & 0.0, 0.0, 1.0, 45.0 & ],shape(FCCTOBCC_BAINROT)) if (a_bcc > 0.0_pReal .and. a_fcc > 0.0_pReal .and. dEq0(cOverA)) then ! fcc -> bcc transformation do i = 1,sum(Ntrans) call R%fromAxisAngle(FCCTOBCC_SYSTEMTRANS(:,i),degrees=.true.,P=1) call B%fromAxisAngle(FCCTOBCC_BAINROT(:,i), degrees=.true.,P=1) x = real(FCCTOBCC_BAINVARIANT(1:3,i),pReal) y = real(FCCTOBCC_BAINVARIANT(4:6,i),pReal) z = real(FCCTOBCC_BAINVARIANT(7:9,i),pReal) U = (a_bcc/a_fcc)*math_outer(x,x) & + (a_bcc/a_fcc)*math_outer(y,y) * sqrt(2.0_pReal) & + (a_bcc/a_fcc)*math_outer(z,z) * sqrt(2.0_pReal) Q(1:3,1:3,i) = matmul(R%asMatrix(),B%asMatrix()) S(1:3,1:3,i) = matmul(R%asMatrix(),U) - MATH_I3 enddo elseif (cOverA > 0.0_pReal .and. dEq0(a_bcc)) then ! fcc -> hex transformation ss = MATH_I3 sd = MATH_I3 ss(1,3) = sqrt(2.0_pReal)/4.0_pReal sd(3,3) = cOverA/sqrt(8.0_pReal/3.0_pReal) do i = 1,sum(Ntrans) x = FCCTOHEX_SYSTEMTRANS(1:3,i)/norm2(FCCTOHEX_SYSTEMTRANS(1:3,i)) z = FCCTOHEX_SYSTEMTRANS(4:6,i)/norm2(FCCTOHEX_SYSTEMTRANS(4:6,i)) y = -math_cross(x,z) Q(1:3,1,i) = x Q(1:3,2,i) = y Q(1:3,3,i) = z S(1:3,1:3,i) = matmul(Q(1:3,1:3,i), matmul(matmul(sd,ss), transpose(Q(1:3,1:3,i)))) - MATH_I3 ! ToDo: This is of interest for the Schmid matrix only enddo else call IO_error(132,ext_msg='buildTransformationSystem') endif end subroutine buildTransformationSystem !-------------------------------------------------------------------------------------------------- !> @brief select active systems as strings !-------------------------------------------------------------------------------------------------- function getlabels(active,potential,system) result(labels) integer, dimension(:), intent(in) :: & active, & !< # of active systems per family potential !< # of potential systems per family real(pReal), dimension(:,:), intent(in) :: & system character(len=:), dimension(:), allocatable :: labels character(len=:), allocatable :: label integer :: i,j integer :: & a, & !< index of active system p, & !< index in potential system matrix f, & !< index of my family s !< index of my system in current family i = 2*size(system,1) + (size(system,1) - 2) + 4 ! 2 letters per index + spaces + brackets allocate(character(len=i) :: labels(sum(active)), label) a = 0 activeFamilies: do f = 1,size(active,1) activeSystems: do s = 1,active(f) a = a + 1 p = sum(potential(1:f-1))+s i = 1 label(i:i) = '[' direction: do j = 1, size(system,1)/2 write(label(i+1:i+2),'(I2.1)') int(system(j,p)) label(i+3:i+3) = ' ' i = i + 3 enddo direction label(i:i) = ']' i = i +1 label(i:i) = '(' normal: do j = size(system,1)/2+1, size(system,1) write(label(i+1:i+2),'(I2.1)') int(system(j,p)) label(i+3:i+3) = ' ' i = i + 3 enddo normal label(i:i) = ')' labels(s) = label enddo activeSystems enddo activeFamilies end function getlabels !-------------------------------------------------------------------------------------------------- !> @brief Equivalent Poisson's ratio (ν) !> @details https://doi.org/10.1143/JPSJ.20.635 !-------------------------------------------------------------------------------------------------- function equivalent_nu(C,assumption) result(nu) real, dimension(6,6), intent(in) :: C !< Stiffness tensor (Voigt notation) character(len=*), intent(in) :: assumption !< Assumption ('Voigt' = isostrain, 'Reuss' = isostress) real :: K, mu, nu logical :: error real, dimension(6,6) :: S if (IO_lc(assumption) == 'voigt') then K = (C(1,1)+C(2,2)+C(3,3) +2.0_pReal*(C(1,2)+C(2,3)+C(1,3))) & / 9.0_pReal elseif(IO_lc(assumption) == 'reuss') then call math_invert(S,error,C) if(error) call IO_error(0) K = 1.0_pReal & / (S(1,1)+S(2,2)+S(3,3) +2.0_pReal*(S(1,2)+S(2,3)+S(1,3))) else call IO_error(0) K = 0.0_pReal endif mu = equivalent_mu(C,assumption) nu = (1.5_pReal*K -mu)/(3.0_pReal*K+mu) end function equivalent_nu !-------------------------------------------------------------------------------------------------- !> @brief Equivalent shear modulus (μ) !> @details https://doi.org/10.1143/JPSJ.20.635 !-------------------------------------------------------------------------------------------------- function equivalent_mu(C,assumption) result(mu) real, dimension(6,6), intent(in) :: C !< Stiffness tensor (Voigt notation) character(len=*), intent(in) :: assumption !< Assumption ('Voigt' = isostrain, 'Reuss' = isostress) real :: mu logical :: error real, dimension(6,6) :: S if (IO_lc(assumption) == 'voigt') then mu = (1.0_pReal*(C(1,1)+C(2,2)+C(3,3)) -1.0_pReal*(C(1,2)+C(2,3)+C(1,3)) +3.0_pReal*(C(4,4)+C(5,5)+C(6,6))) & / 15.0_pReal elseif(IO_lc(assumption) == 'reuss') then call math_invert(S,error,C) if(error) call IO_error(0) mu = 15.0_pReal & / (4.0_pReal*(S(1,1)+S(2,2)+S(3,3)) -4.0_pReal*(S(1,2)+S(2,3)+S(1,3)) +3.0_pReal*(S(4,4)+S(5,5)+S(6,6))) else call IO_error(0) mu = 0.0_pReal endif end function equivalent_mu end module lattice