!-------------------------------------------------------------------------------------------------- !> @author Luv Sharma, Max-Planck-Institut für Eisenforschung GmbH !> @author Pratheek Shanthraj, Max-Planck-Institut für Eisenforschung GmbH !> @brief material subroutine incorporating anisotropic brittle damage source mechanism !> @details to be done !-------------------------------------------------------------------------------------------------- submodule (constitutive:constitutive_damage) source_damage_anisoBrittle integer, dimension(:), allocatable :: & source_damage_anisoBrittle_offset, & !< which source is my current source mechanism? source_damage_anisoBrittle_instance !< instance of source mechanism type :: tParameters !< container type for internal constitutive parameters real(pReal) :: & sdot_0, & n real(pReal), dimension(:), allocatable :: & critDisp, & critLoad real(pReal), dimension(:,:,:,:), allocatable :: & cleavage_systems integer :: & sum_N_cl character(len=pStringLen), allocatable, dimension(:) :: & output end type tParameters type(tParameters), dimension(:), allocatable :: param !< containers of constitutive parameters (len Ninstance) contains !-------------------------------------------------------------------------------------------------- !> @brief module initialization !> @details reads in material parameters, allocates arrays, and does sanity checks !-------------------------------------------------------------------------------------------------- module subroutine source_damage_anisoBrittle_init integer :: Ninstance,sourceOffset,NipcMyPhase,p integer, dimension(:), allocatable :: N_cl character(len=pStringLen) :: extmsg = '' write(6,'(/,a)') ' <<<+- source_'//SOURCE_DAMAGE_ANISOBRITTLE_LABEL//' init -+>>>' Ninstance = count(phase_source == SOURCE_DAMAGE_ANISOBRITTLE_ID) write(6,'(a16,1x,i5,/)') '# instances:',Ninstance; flush(6) allocate(source_damage_anisoBrittle_offset (size(config_phase)), source=0) allocate(source_damage_anisoBrittle_instance(size(config_phase)), source=0) allocate(param(Ninstance)) do p = 1, size(config_phase) source_damage_anisoBrittle_instance(p) = count(phase_source(:,1:p) == SOURCE_DAMAGE_ANISOBRITTLE_ID) do sourceOffset = 1, phase_Nsources(p) if (phase_source(sourceOffset,p) == SOURCE_DAMAGE_ANISOBRITTLE_ID) then source_damage_anisoBrittle_offset(p) = sourceOffset exit endif enddo if (all(phase_source(:,p) /= SOURCE_DAMAGE_ANISOBRITTLE_ID)) cycle associate(prm => param(source_damage_anisoBrittle_instance(p)), & config => config_phase(p)) prm%output = config%getStrings('(output)',defaultVal=emptyStringArray) N_cl = config%getInts('ncleavage',defaultVal=emptyIntArray) prm%sum_N_cl = sum(abs(N_cl)) prm%n = config%getFloat('anisobrittle_ratesensitivity') prm%sdot_0 = config%getFloat('anisobrittle_sdot0') prm%critDisp = config%getFloats('anisobrittle_criticaldisplacement',requiredSize=size(N_cl)) prm%critLoad = config%getFloats('anisobrittle_criticalload', requiredSize=size(N_cl)) prm%cleavage_systems = lattice_SchmidMatrix_cleavage(N_cl,config%getString('lattice_structure'),& config%getFloat('c/a',defaultVal=0.0_pReal)) ! expand: family => system prm%critDisp = math_expand(prm%critDisp,N_cl) prm%critLoad = math_expand(prm%critLoad,N_cl) ! sanity checks if (prm%n <= 0.0_pReal) extmsg = trim(extmsg)//' anisobrittle_n' if (prm%sdot_0 <= 0.0_pReal) extmsg = trim(extmsg)//' anisobrittle_sdot0' if (any(prm%critLoad < 0.0_pReal)) extmsg = trim(extmsg)//' anisobrittle_critLoad' if (any(prm%critDisp < 0.0_pReal)) extmsg = trim(extmsg)//' anisobrittle_critDisp' NipcMyPhase = count(material_phaseAt==p) * discretization_nIP call material_allocateState(sourceState(p)%p(sourceOffset),NipcMyPhase,1,1,0) sourceState(p)%p(sourceOffset)%atol = config%getFloat('anisobrittle_atol',defaultVal=1.0e-3_pReal) if(any(sourceState(p)%p(sourceOffset)%atol < 0.0_pReal)) extmsg = trim(extmsg)//' anisobrittle_atol' end associate !-------------------------------------------------------------------------------------------------- ! exit if any parameter is out of range if (extmsg /= '') call IO_error(211,ext_msg=trim(extmsg)//'('//SOURCE_DAMAGE_ANISOBRITTLE_LABEL//')') enddo end subroutine source_damage_anisoBrittle_init !-------------------------------------------------------------------------------------------------- !> @brief calculates derived quantities from state !-------------------------------------------------------------------------------------------------- module subroutine source_damage_anisoBrittle_dotState(S, ipc, ip, el) integer, intent(in) :: & ipc, & !< component-ID of integration point ip, & !< integration point el !< element real(pReal), intent(in), dimension(3,3) :: & S integer :: & phase, & constituent, & sourceOffset, & damageOffset, & homog, & i real(pReal) :: & traction_d, traction_t, traction_n, traction_crit phase = material_phaseAt(ipc,el) constituent = material_phasememberAt(ipc,ip,el) sourceOffset = source_damage_anisoBrittle_offset(phase) homog = material_homogenizationAt(el) damageOffset = damageMapping(homog)%p(ip,el) associate(prm => param(source_damage_anisoBrittle_instance(phase))) sourceState(phase)%p(sourceOffset)%dotState(1,constituent) = 0.0_pReal do i = 1, prm%sum_N_cl traction_d = math_tensordot(S,prm%cleavage_systems(1:3,1:3,1,i)) traction_t = math_tensordot(S,prm%cleavage_systems(1:3,1:3,2,i)) traction_n = math_tensordot(S,prm%cleavage_systems(1:3,1:3,3,i)) traction_crit = prm%critLoad(i)*damage(homog)%p(damageOffset)**2.0_pReal sourceState(phase)%p(sourceOffset)%dotState(1,constituent) & = sourceState(phase)%p(sourceOffset)%dotState(1,constituent) & + prm%sdot_0 / prm%critDisp(i) & * ((max(0.0_pReal, abs(traction_d) - traction_crit)/traction_crit)**prm%n + & (max(0.0_pReal, abs(traction_t) - traction_crit)/traction_crit)**prm%n + & (max(0.0_pReal, abs(traction_n) - traction_crit)/traction_crit)**prm%n) enddo end associate end subroutine source_damage_anisoBrittle_dotState !-------------------------------------------------------------------------------------------------- !> @brief returns local part of nonlocal damage driving force !-------------------------------------------------------------------------------------------------- module subroutine source_damage_anisobrittle_getRateAndItsTangent(localphiDot, dLocalphiDot_dPhi, phi, phase, constituent) integer, intent(in) :: & phase, & constituent real(pReal), intent(in) :: & phi real(pReal), intent(out) :: & localphiDot, & dLocalphiDot_dPhi integer :: & sourceOffset sourceOffset = source_damage_anisoBrittle_offset(phase) dLocalphiDot_dPhi = -sourceState(phase)%p(sourceOffset)%state(1,constituent) localphiDot = 1.0_pReal & + dLocalphiDot_dPhi*phi end subroutine source_damage_anisoBrittle_getRateAndItsTangent !-------------------------------------------------------------------------------------------------- !> @brief writes results to HDF5 output file !-------------------------------------------------------------------------------------------------- module subroutine source_damage_anisoBrittle_results(phase,group) integer, intent(in) :: phase character(len=*), intent(in) :: group integer :: o associate(prm => param(source_damage_anisoBrittle_instance(phase)), & stt => sourceState(phase)%p(source_damage_anisoBrittle_offset(phase))%state) outputsLoop: do o = 1,size(prm%output) select case(trim(prm%output(o))) case ('anisobrittle_drivingforce') call results_writeDataset(group,stt,'tbd','driving force','tbd') end select enddo outputsLoop end associate end subroutine source_damage_anisoBrittle_results end submodule source_damage_anisoBrittle