!-------------------------------------------------------------------------------------------------- !> @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 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 type, private :: tParameters !< container type for internal constitutive parameters real(pReal) :: & critStrainEnergy, & N, & aTol integer(kind(undefined_ID)), allocatable, dimension(:) :: & outputID end type tParameters type(tParameters), dimension(:), allocatable, private :: param !< containers of constitutive parameters (len Ninstance) 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) #if defined(__GFORTRAN__) || __INTEL_COMPILER >= 1800 use, intrinsic :: iso_fortran_env, only: & compiler_version, & compiler_options #endif use prec, only: & pStringLen 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: & material_allocateSourceState, & phase_source, & phase_Nsources, & phase_Noutput, & SOURCE_damage_isoBrittle_label, & SOURCE_damage_isoBrittle_ID, & material_phase, & sourceState use config, only: & config_phase, & material_Nphase, & MATERIAL_partPhase implicit none integer(pInt), intent(in) :: fileUnit integer(pInt), allocatable, dimension(:) :: chunkPos integer(pInt) :: Ninstance,mySize=0_pInt,phase,instance,source,sourceOffset,o integer(pInt) :: NofMyPhase,p,i character(len=65536) :: & tag = '', & line = '' character(len=65536), dimension(0), parameter :: emptyStringArray = [character(len=65536)::] integer(kind(undefined_ID)) :: & outputID character(len=pStringLen) :: & extmsg = '' character(len=65536), dimension(:), allocatable :: & outputs write(6,'(/,a)') ' <<<+- source_'//SOURCE_DAMAGE_ISOBRITTLE_LABEL//' init -+>>>' write(6,'(a15,a)') ' Current time: ',IO_timeStamp() #include "compilation_info.f90" Ninstance = int(count(phase_source == SOURCE_damage_isoBrittle_ID),pInt) if (Ninstance == 0_pInt) return if (iand(debug_level(debug_constitutive),debug_levelBasic) /= 0_pInt) & write(6,'(a16,1x,i5,/)') '# instances:',Ninstance 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(Ninstance), source=0_pInt) allocate(source_damage_isoBrittle_sizePostResult(maxval(phase_Noutput),Ninstance),source=0_pInt) allocate(source_damage_isoBrittle_output(maxval(phase_Noutput),Ninstance)) source_damage_isoBrittle_output = '' allocate(source_damage_isoBrittle_outputID(maxval(phase_Noutput),Ninstance), source=undefined_ID) allocate(source_damage_isoBrittle_Noutput(Ninstance), source=0_pInt) allocate(param(Ninstance)) do p=1, size(config_phase) if (all(phase_source(:,p) /= SOURCE_DAMAGE_ISOBRITTLE_ID)) cycle associate(prm => param(source_damage_isoBrittle_instance(p)), & config => config_phase(p)) prm%aTol = config%getFloat('isobrittle_atol',defaultVal = 1.0e-3_pReal) prm%N = config%getFloat('isobrittle_n') prm%critStrainEnergy = config%getFloat('isobrittle_criticalstrainenergy') ! sanity checks if (prm%aTol < 0.0_pReal) extmsg = trim(extmsg)//' isobrittle_atol' if (prm%N <= 0.0_pReal) extmsg = trim(extmsg)//' isobrittle_n' if (prm%critStrainEnergy <= 0.0_pReal) extmsg = trim(extmsg)//' isobrittle_criticalstrainenergy' !-------------------------------------------------------------------------------------------------- ! exit if any parameter is out of range if (extmsg /= '') & call IO_error(211_pInt,ext_msg=trim(extmsg)//'('//SOURCE_DAMAGE_ISOBRITTLE_LABEL//')') !-------------------------------------------------------------------------------------------------- ! output pararameters outputs = config%getStrings('(output)',defaultVal=emptyStringArray) allocate(prm%outputID(0)) do i=1_pInt, size(outputs) outputID = undefined_ID select case(outputs(i)) case ('isobrittle_drivingforce') end select enddo end associate enddo 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 end select endif; endif enddo parsingFile 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 call material_allocateSourceState(phase,sourceOffset,NofMyPhase,1_pInt) sourceState(phase)%p(sourceOffset)%sizePostResults = source_damage_isoBrittle_sizePostResults(instance) sourceState(phase)%p(sourceOffset)%aTolState=param(instance)%aTol 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 use math, only : & math_sym33to6, & math_mul33x33, & math_mul66x6, & 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), & 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) strain = 0.5_pReal*math_sym33to6(math_mul33x33(transpose(Fe),Fe)-math_I3) strainenergy = 2.0_pReal*sum(strain*math_mul66x6(C,strain))/ & param(instance)%critStrainEnergy 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, phase, constituent) use material, only: & sourceState implicit none integer(pInt), intent(in) :: & phase, & constituent real(pReal), intent(in) :: & phi real(pReal), intent(out) :: & localphiDot, & dLocalphiDot_dPhi integer(pInt) :: & instance, sourceOffset instance = source_damage_isoBrittle_instance(phase) sourceOffset = source_damage_isoBrittle_offset(phase) localphiDot = (1.0_pReal - phi)**(param(instance)%N - 1.0_pReal) - & phi*sourceState(phase)%p(sourceOffset)%state(1,constituent) dLocalphiDot_dPhi = - (param(instance)%N - 1.0_pReal)* & (1.0_pReal - phi)**max(0.0_pReal,param(instance)%N - 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(phase, constituent) use material, only: & sourceState implicit none integer(pInt), intent(in) :: & phase, & constituent real(pReal), dimension(source_damage_isoBrittle_sizePostResults( & source_damage_isoBrittle_instance(phase))) :: & source_damage_isoBrittle_postResults integer(pInt) :: & instance, sourceOffset, o, c 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