DAMASK_EICMD/src/source_damage_isoDuctile.f90

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!--------------------------------------------------------------------------------------------------
!> @author Pratheek Shanthraj, Max-Planck-Institut für Eisenforschung GmbH
!> @author Luv Sharma, Max-Planck-Institut für Eisenforschung GmbH
!> @brief material subroutine incoprorating isotropic ductile damage source mechanism
!> @details to be done
!--------------------------------------------------------------------------------------------------
module source_damage_isoDuctile
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use prec
use debug
use IO
use discretization
use material
use config
use results
implicit none
private
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integer, dimension(:), allocatable :: &
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source_damage_isoDuctile_offset, & !< which source is my current damage mechanism?
source_damage_isoDuctile_instance !< instance of damage source mechanism
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type, private :: tParameters !< container type for internal constitutive parameters
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real(pReal) :: &
critPlasticStrain, &
N, &
aTol
character(len=pStringLen), allocatable, dimension(:) :: &
output
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end type tParameters
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type(tParameters), dimension(:), allocatable, private :: param !< containers of constitutive parameters (len Ninstance)
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public :: &
source_damage_isoDuctile_init, &
source_damage_isoDuctile_dotState, &
source_damage_isoDuctile_getRateAndItsTangent, &
source_damage_isoDuctile_Results
contains
!--------------------------------------------------------------------------------------------------
!> @brief module initialization
!> @details reads in material parameters, allocates arrays, and does sanity checks
!--------------------------------------------------------------------------------------------------
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subroutine source_damage_isoDuctile_init
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integer :: Ninstance,sourceOffset,NofMyPhase,p
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character(len=pStringLen) :: extmsg = ''
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write(6,'(/,a)') ' <<<+- source_'//SOURCE_DAMAGE_ISODUCTILE_LABEL//' init -+>>>'; flush(6)
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Ninstance = count(phase_source == SOURCE_DAMAGE_ISODUCTILE_ID)
if (iand(debug_level(debug_constitutive),debug_levelBasic) /= 0) &
write(6,'(a16,1x,i5,/)') '# instances:',Ninstance
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allocate(source_damage_isoDuctile_offset (size(config_phase)), source=0)
allocate(source_damage_isoDuctile_instance(size(config_phase)), source=0)
allocate(param(Ninstance))
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do p = 1, size(config_phase)
source_damage_isoDuctile_instance(p) = count(phase_source(:,1:p) == SOURCE_DAMAGE_ISODUCTILE_ID)
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do sourceOffset = 1, phase_Nsources(p)
if (phase_source(sourceOffset,p) == SOURCE_DAMAGE_ISODUCTILE_ID) then
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source_damage_isoDuctile_offset(p) = sourceOffset
exit
endif
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enddo
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if (all(phase_source(:,p) /= SOURCE_DAMAGE_ISODUCTILE_ID)) cycle
associate(prm => param(source_damage_isoDuctile_instance(p)), &
config => config_phase(p))
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prm%aTol = config%getFloat('isoductile_atol',defaultVal = 1.0e-3_pReal)
prm%N = config%getFloat('isoductile_ratesensitivity')
prm%critPlasticStrain = config%getFloat('isoductile_criticalplasticstrain')
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! sanity checks
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if (prm%aTol < 0.0_pReal) extmsg = trim(extmsg)//' isoductile_atol'
if (prm%N <= 0.0_pReal) extmsg = trim(extmsg)//' isoductile_ratesensitivity'
if (prm%critPlasticStrain <= 0.0_pReal) extmsg = trim(extmsg)//' isoductile_criticalplasticstrain'
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!--------------------------------------------------------------------------------------------------
! exit if any parameter is out of range
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if (extmsg /= '') &
call IO_error(211,ext_msg=trim(extmsg)//'('//SOURCE_DAMAGE_ISODUCTILE_LABEL//')')
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!--------------------------------------------------------------------------------------------------
! output pararameters
prm%output = config%getStrings('(output)',defaultVal=emptyStringArray)
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NofMyPhase=count(material_phaseAt==p) * discretization_nIP
call material_allocateSourceState(p,sourceOffset,NofMyPhase,1,1,0)
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sourceState(p)%p(sourceOffset)%aTolState=prm%aTol
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end associate
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enddo
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end subroutine source_damage_isoDuctile_init
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!--------------------------------------------------------------------------------------------------
!> @brief calculates derived quantities from state
!--------------------------------------------------------------------------------------------------
subroutine source_damage_isoDuctile_dotState(ipc, ip, el)
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integer, intent(in) :: &
ipc, & !< component-ID of integration point
ip, & !< integration point
el !< element
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integer :: &
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phase, &
constituent, &
sourceOffset, &
damageOffset, &
homog
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phase = material_phaseAt(ipc,el)
constituent = material_phasememberAt(ipc,ip,el)
sourceOffset = source_damage_isoDuctile_offset(phase)
homog = material_homogenizationAt(el)
damageOffset = damageMapping(homog)%p(ip,el)
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associate(prm => param(source_damage_isoDuctile_instance(phase)))
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sourceState(phase)%p(sourceOffset)%dotState(1,constituent) = &
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sum(plasticState(phase)%slipRate(:,constituent))/(damage(homog)%p(damageOffset)**prm%N)/prm%critPlasticStrain ! ToDo: abs for slip rate?
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end associate
end subroutine source_damage_isoDuctile_dotState
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!--------------------------------------------------------------------------------------------------
!> @brief returns local part of nonlocal damage driving force
!--------------------------------------------------------------------------------------------------
subroutine source_damage_isoDuctile_getRateAndItsTangent(localphiDot, dLocalphiDot_dPhi, phi, phase, constituent)
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integer, intent(in) :: &
phase, &
constituent
real(pReal), intent(in) :: &
phi
real(pReal), intent(out) :: &
localphiDot, &
dLocalphiDot_dPhi
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integer :: &
sourceOffset
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sourceOffset = source_damage_isoDuctile_offset(phase)
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dLocalphiDot_dPhi = -sourceState(phase)%p(sourceOffset)%state(1,constituent)
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localphiDot = 1.0_pReal &
+ dLocalphiDot_dPhi*phi
end subroutine source_damage_isoDuctile_getRateAndItsTangent
!--------------------------------------------------------------------------------------------------
!> @brief writes results to HDF5 output file
!--------------------------------------------------------------------------------------------------
subroutine source_damage_isoDuctile_results(phase,group)
integer, intent(in) :: phase
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character(len=*), intent(in) :: group
integer :: o
associate(prm => param(source_damage_isoDuctile_instance(phase)), &
stt => sourceState(phase)%p(source_damage_isoDuctile_offset(phase))%state)
outputsLoop: do o = 1,size(prm%output)
select case(trim(prm%output(o)))
case ('isoductile_drivingforce')
call results_writeDataset(group,stt,'tbd','driving force','tbd')
end select
enddo outputsLoop
end associate
end subroutine source_damage_isoDuctile_results
end module source_damage_isoDuctile