!-------------------------------------------------------------------------------------------------- !> @author Pratheek Shanthraj, Max-Planck-Institut für Eisenforschung GmbH !> @author Luv Sharma, Max-Planck-Institut für Eisenforschung GmbH !> @brief material subroutine incoprorating isotropic brittle damage source mechanism !> @details to be done !-------------------------------------------------------------------------------------------------- module source_damage_isoBrittle use prec, only: & pReal, & pInt implicit none private integer(pInt), dimension(:), allocatable, public, protected :: & source_damage_isoBrittle_sizePostResults, & !< cumulative size of post results source_damage_isoBrittle_offset, & !< which source is my current damage mechanism? source_damage_isoBrittle_instance !< instance of damage source mechanism integer(pInt), dimension(:,:), allocatable, target, public :: & source_damage_isoBrittle_sizePostResult !< size of each post result output character(len=64), dimension(:,:), allocatable, target, public :: & source_damage_isoBrittle_output !< name of each post result output integer(pInt), dimension(:), allocatable, target, public :: & source_damage_isoBrittle_Noutput !< number of outputs per instance of this damage real(pReal), dimension(:), allocatable, private :: & source_damage_isoBrittle_aTol, & source_damage_isoBrittle_N, & source_damage_isoBrittle_critStrainEnergy enum, bind(c) enumerator :: undefined_ID, & damage_drivingforce_ID end enum !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!11 ToDo integer(kind(undefined_ID)), dimension(:,:), allocatable, private :: & source_damage_isoBrittle_outputID !< ID of each post result output public :: & source_damage_isoBrittle_init, & source_damage_isoBrittle_deltaState, & source_damage_isoBrittle_getRateAndItsTangent, & source_damage_isoBrittle_postResults contains !-------------------------------------------------------------------------------------------------- !> @brief module initialization !> @details reads in material parameters, allocates arrays, and does sanity checks !-------------------------------------------------------------------------------------------------- subroutine source_damage_isoBrittle_init(fileUnit) use, intrinsic :: iso_fortran_env ! to get compiler_version and compiler_options (at least for gfortran 4.6 at the moment) use debug, only: & debug_level,& debug_constitutive,& debug_levelBasic use IO, only: & IO_read, & IO_lc, & IO_getTag, & IO_isBlank, & IO_stringPos, & IO_stringValue, & IO_floatValue, & IO_intValue, & IO_warning, & IO_error, & IO_timeStamp, & IO_EOF use material, only: & phase_source, & phase_Nsources, & phase_Noutput, & SOURCE_damage_isoBrittle_label, & SOURCE_damage_isoBrittle_ID, & material_Nphase, & material_phase, & sourceState, & MATERIAL_partPhase use numerics,only: & numerics_integrator implicit none integer(pInt), intent(in) :: fileUnit integer(pInt), allocatable, dimension(:) :: chunkPos integer(pInt) :: maxNinstance,mySize=0_pInt,phase,instance,source,sourceOffset,o integer(pInt) :: sizeState, sizeDotState, sizeDeltaState integer(pInt) :: NofMyPhase character(len=65536) :: & tag = '', & line = '' write(6,'(/,a)') ' <<<+- source_'//SOURCE_damage_isoBrittle_label//' init -+>>>' write(6,'(a15,a)') ' Current time: ',IO_timeStamp() #include "compilation_info.f90" maxNinstance = int(count(phase_source == SOURCE_damage_isoBrittle_ID),pInt) if (maxNinstance == 0_pInt) return if (iand(debug_level(debug_constitutive),debug_levelBasic) /= 0_pInt) & write(6,'(a16,1x,i5,/)') '# instances:',maxNinstance allocate(source_damage_isoBrittle_offset(material_Nphase), source=0_pInt) allocate(source_damage_isoBrittle_instance(material_Nphase), source=0_pInt) do phase = 1, material_Nphase source_damage_isoBrittle_instance(phase) = count(phase_source(:,1:phase) == source_damage_isoBrittle_ID) do source = 1, phase_Nsources(phase) if (phase_source(source,phase) == source_damage_isoBrittle_ID) & source_damage_isoBrittle_offset(phase) = source enddo enddo allocate(source_damage_isoBrittle_sizePostResults(maxNinstance), source=0_pInt) allocate(source_damage_isoBrittle_sizePostResult(maxval(phase_Noutput),maxNinstance),source=0_pInt) allocate(source_damage_isoBrittle_output(maxval(phase_Noutput),maxNinstance)) source_damage_isoBrittle_output = '' allocate(source_damage_isoBrittle_outputID(maxval(phase_Noutput),maxNinstance), source=undefined_ID) allocate(source_damage_isoBrittle_Noutput(maxNinstance), source=0_pInt) allocate(source_damage_isoBrittle_critStrainEnergy(maxNinstance), source=0.0_pReal) allocate(source_damage_isoBrittle_N(maxNinstance), source=1.0_pReal) allocate(source_damage_isoBrittle_aTol(maxNinstance), source=0.0_pReal) rewind(fileUnit) phase = 0_pInt do while (trim(line) /= IO_EOF .and. IO_lc(IO_getTag(line,'<','>')) /= MATERIAL_partPhase) ! wind forward to line = IO_read(fileUnit) enddo parsingFile: do while (trim(line) /= IO_EOF) ! read through sections of phase part line = IO_read(fileUnit) if (IO_isBlank(line)) cycle ! skip empty lines if (IO_getTag(line,'<','>') /= '') then ! stop at next part line = IO_read(fileUnit, .true.) ! reset IO_read exit endif if (IO_getTag(line,'[',']') /= '') then ! next phase section phase = phase + 1_pInt ! advance phase section counter cycle ! skip to next line endif if (phase > 0_pInt ) then; if (any(phase_source(:,phase) == SOURCE_damage_isoBrittle_ID)) then ! do not short-circuit here (.and. with next if statemen). It's not safe in Fortran instance = source_damage_isoBrittle_instance(phase) ! which instance of my damage is present phase chunkPos = IO_stringPos(line) tag = IO_lc(IO_stringValue(line,chunkPos,1_pInt)) ! extract key select case(tag) case ('(output)') select case(IO_lc(IO_stringValue(line,chunkPos,2_pInt))) case ('isobrittle_drivingforce') source_damage_isoBrittle_Noutput(instance) = source_damage_isoBrittle_Noutput(instance) + 1_pInt source_damage_isoBrittle_outputID(source_damage_isoBrittle_Noutput(instance),instance) = damage_drivingforce_ID source_damage_isoBrittle_output(source_damage_isoBrittle_Noutput(instance),instance) = & IO_lc(IO_stringValue(line,chunkPos,2_pInt)) end select case ('isobrittle_criticalstrainenergy') source_damage_isoBrittle_critStrainEnergy(instance) = IO_floatValue(line,chunkPos,2_pInt) case ('isobrittle_n') source_damage_isoBrittle_N(instance) = IO_floatValue(line,chunkPos,2_pInt) case ('isobrittle_atol') source_damage_isoBrittle_aTol(instance) = IO_floatValue(line,chunkPos,2_pInt) end select endif; endif enddo parsingFile !-------------------------------------------------------------------------------------------------- ! sanity checks sanityChecks: do phase = 1_pInt, material_Nphase myPhase: if (any(phase_source(:,phase) == SOURCE_damage_isoBrittle_ID)) then instance = source_damage_isoBrittle_instance(phase) if (source_damage_isoBrittle_aTol(instance) < 0.0_pReal) & source_damage_isoBrittle_aTol(instance) = 1.0e-3_pReal ! default absolute tolerance 1e-3 if (source_damage_isoBrittle_critStrainEnergy(instance) <= 0.0_pReal) & call IO_error(211_pInt,el=instance,ext_msg='criticalStrainEnergy ('//SOURCE_damage_isoBrittle_LABEL//')') endif myPhase enddo sanityChecks initializeInstances: do phase = 1_pInt, material_Nphase if (any(phase_source(:,phase) == SOURCE_damage_isoBrittle_ID)) then NofMyPhase=count(material_phase==phase) instance = source_damage_isoBrittle_instance(phase) sourceOffset = source_damage_isoBrittle_offset(phase) !-------------------------------------------------------------------------------------------------- ! Determine size of postResults array outputsLoop: do o = 1_pInt,source_damage_isoBrittle_Noutput(instance) select case(source_damage_isoBrittle_outputID(o,instance)) case(damage_drivingforce_ID) mySize = 1_pInt end select if (mySize > 0_pInt) then ! any meaningful output found source_damage_isoBrittle_sizePostResult(o,instance) = mySize source_damage_isoBrittle_sizePostResults(instance) = source_damage_isoBrittle_sizePostResults(instance) + mySize endif enddo outputsLoop ! Determine size of state array sizeDotState = 1_pInt sizeDeltaState = 1_pInt sizeState = 1_pInt sourceState(phase)%p(sourceOffset)%sizeState = sizeState sourceState(phase)%p(sourceOffset)%sizeDotState = sizeDotState sourceState(phase)%p(sourceOffset)%sizeDeltaState = sizeDeltaState sourceState(phase)%p(sourceOffset)%sizePostResults = source_damage_isoBrittle_sizePostResults(instance) allocate(sourceState(phase)%p(sourceOffset)%aTolState (sizeState), & source=source_damage_isoBrittle_aTol(instance)) allocate(sourceState(phase)%p(sourceOffset)%state0 (sizeState,NofMyPhase), source=.0_pReal) allocate(sourceState(phase)%p(sourceOffset)%partionedState0 (sizeState,NofMyPhase), source=0.0_pReal) allocate(sourceState(phase)%p(sourceOffset)%subState0 (sizeState,NofMyPhase), source=0.0_pReal) allocate(sourceState(phase)%p(sourceOffset)%state (sizeState,NofMyPhase), source=0.0_pReal) allocate(sourceState(phase)%p(sourceOffset)%dotState (sizeDotState,NofMyPhase), source=0.0_pReal) allocate(sourceState(phase)%p(sourceOffset)%deltaState (sizeDeltaState,NofMyPhase), source=0.0_pReal) if (any(numerics_integrator == 1_pInt)) then allocate(sourceState(phase)%p(sourceOffset)%previousDotState (sizeDotState,NofMyPhase), source=0.0_pReal) allocate(sourceState(phase)%p(sourceOffset)%previousDotState2 (sizeDotState,NofMyPhase), source=0.0_pReal) endif if (any(numerics_integrator == 4_pInt)) & allocate(sourceState(phase)%p(sourceOffset)%RK4dotState (sizeDotState,NofMyPhase), source=0.0_pReal) if (any(numerics_integrator == 5_pInt)) & allocate(sourceState(phase)%p(sourceOffset)%RKCK45dotState (6,sizeDotState,NofMyPhase),source=0.0_pReal) endif enddo initializeInstances end subroutine source_damage_isoBrittle_init !-------------------------------------------------------------------------------------------------- !> @brief calculates derived quantities from state !-------------------------------------------------------------------------------------------------- subroutine source_damage_isoBrittle_deltaState(C, Fe, ipc, ip, el) use material, only: & phaseAt, phasememberAt, & sourceState, & material_homog, & phase_NstiffnessDegradations, & phase_stiffnessDegradation, & porosity, & porosityMapping, & STIFFNESS_DEGRADATION_porosity_ID use math, only : & math_mul33x33, & math_mul66x6, & math_Mandel33to6, & math_transpose33, & math_I3 implicit none integer(pInt), intent(in) :: & ipc, & !< component-ID of integration point ip, & !< integration point el !< element real(pReal), intent(in), dimension(3,3) :: & Fe real(pReal), intent(in), dimension(6,6) :: & C integer(pInt) :: & phase, constituent, instance, sourceOffset, mech real(pReal) :: & strain(6), & stiffness(6,6), & strainenergy phase = phaseAt(ipc,ip,el) !< phase ID at ipc,ip,el constituent = phasememberAt(ipc,ip,el) !< state array offset for phase ID at ipc,ip,el ! ToDo: capability for multiple instances of SAME source within given phase. Needs Ninstance loop from here on! instance = source_damage_isoBrittle_instance(phase) !< instance of damage_isoBrittle source sourceOffset = source_damage_isoBrittle_offset(phase) stiffness = C do mech = 1_pInt, phase_NstiffnessDegradations(phase) select case(phase_stiffnessDegradation(mech,phase)) case (STIFFNESS_DEGRADATION_porosity_ID) stiffness = porosity(material_homog(ip,el))%p(porosityMapping(material_homog(ip,el))%p(ip,el))* & porosity(material_homog(ip,el))%p(porosityMapping(material_homog(ip,el))%p(ip,el))* & stiffness end select enddo strain = 0.5_pReal*math_Mandel33to6(math_mul33x33(math_transpose33(Fe),Fe)-math_I3) strainenergy = 2.0_pReal*sum(strain*math_mul66x6(stiffness,strain))/ & source_damage_isoBrittle_critStrainEnergy(instance) if (strainenergy > sourceState(phase)%p(sourceOffset)%subState0(1,constituent)) then sourceState(phase)%p(sourceOffset)%deltaState(1,constituent) = & strainenergy - sourceState(phase)%p(sourceOffset)%state(1,constituent) else sourceState(phase)%p(sourceOffset)%deltaState(1,constituent) = & sourceState(phase)%p(sourceOffset)%subState0(1,constituent) - & sourceState(phase)%p(sourceOffset)%state(1,constituent) endif end subroutine source_damage_isoBrittle_deltaState !-------------------------------------------------------------------------------------------------- !> @brief returns local part of nonlocal damage driving force !-------------------------------------------------------------------------------------------------- subroutine source_damage_isoBrittle_getRateAndItsTangent(localphiDot, dLocalphiDot_dPhi, phi, ipc, ip, el) use material, only: & phaseAt, phasememberAt, & sourceState implicit none integer(pInt), intent(in) :: & ipc, & !< component-ID of integration point ip, & !< integration point el !< element real(pReal), intent(in) :: & phi real(pReal), intent(out) :: & localphiDot, & dLocalphiDot_dPhi integer(pInt) :: & phase, constituent, instance, sourceOffset phase = phaseAt(ipc,ip,el) constituent = phasememberAt(ipc,ip,el) instance = source_damage_isoBrittle_instance(phase) sourceOffset = source_damage_isoBrittle_offset(phase) localphiDot = (1.0_pReal - phi)**(source_damage_isoBrittle_N(instance) - 1.0_pReal) - & phi*sourceState(phase)%p(sourceOffset)%state(1,constituent) dLocalphiDot_dPhi = - (source_damage_isoBrittle_N(instance) - 1.0_pReal)* & (1.0_pReal - phi)**max(0.0_pReal,source_damage_isoBrittle_N(instance) - 2.0_pReal) & - sourceState(phase)%p(sourceOffset)%state(1,constituent) end subroutine source_damage_isoBrittle_getRateAndItsTangent !-------------------------------------------------------------------------------------------------- !> @brief return array of local damage results !-------------------------------------------------------------------------------------------------- function source_damage_isoBrittle_postResults(ipc,ip,el) use material, only: & phaseAt, phasememberAt, & sourceState implicit none integer(pInt), intent(in) :: & ipc, & !< component-ID of integration point ip, & !< integration point el !< element real(pReal), dimension(source_damage_isoBrittle_sizePostResults( & source_damage_isoBrittle_instance(phaseAt(ipc,ip,el)))) :: & source_damage_isoBrittle_postResults integer(pInt) :: & instance, phase, constituent, sourceOffset, o, c phase = phaseAt(ipc,ip,el) constituent = phasememberAt(ipc,ip,el) instance = source_damage_isoBrittle_instance(phase) sourceOffset = source_damage_isoBrittle_offset(phase) c = 0_pInt source_damage_isoBrittle_postResults = 0.0_pReal do o = 1_pInt,source_damage_isoBrittle_Noutput(instance) select case(source_damage_isoBrittle_outputID(o,instance)) case (damage_drivingforce_ID) source_damage_isoBrittle_postResults(c+1_pInt) = sourceState(phase)%p(sourceOffset)%state(1,constituent) c = c + 1 end select enddo end function source_damage_isoBrittle_postResults end module source_damage_isoBrittle