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DAMASK_EICMD
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started implementing a void fraction based ductile damage model.

This commit is contained in:
Luv Sharma 2014-10-10 12:42:12 +00:00
parent ba65d04bb3
commit 1657e0f7ba
8 changed files with 489 additions and 30 deletions
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1
code/DAMASK_abaqus_exp.f
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@ -85,6 +85,7 @@ end module DAMASK_interface
#include "damage_none.f90"
#include "damage_brittle.f90"
#include "damage_ductile.f90"
#include "damage_gurson.f90"
#include "thermal_isothermal.f90"
#include "thermal_adiabatic.f90"
#include "constitutive_none.f90"

1
code/DAMASK_abaqus_std.f
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@ -85,6 +85,7 @@ end module DAMASK_interface
#include "damage_none.f90"
#include "damage_brittle.f90"
#include "damage_ductile.f90"
#include "damage_gurson.f90"
#include "thermal_isothermal.f90"
#include "thermal_adiabatic.f90"
#include "constitutive_none.f90"

1
code/DAMASK_marc.f90
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@ -114,6 +114,7 @@ end module DAMASK_interface
#include "damage_none.f90"
#include "damage_brittle.f90"
#include "damage_ductile.f90"
#include "damage_gurson.f90"
#include "thermal_isothermal.f90"
#include "thermal_adiabatic.f90"
#include "constitutive_none.f90"

2
code/DAMASK_spectral_interface.f90
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@ -9,7 +9,7 @@
!> by DAMASK. Interpretating the command line arguments or, in case of called from f2py,
!> the arguments parsed to the init routine to get load case, geometry file, working
!> directory, etc.
!--------------------------------------------------------------------------------------------------
!-----------------------------------------------------------`---------------------------------------
module DAMASK_interface
use prec, only: &
pInt

5
code/Makefile
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@ -326,7 +326,7 @@ COMPILE =$(COMPILE_OPTIONS_$(F90)) $(STANDARD_CHECK_$(F90)) $(OPTIMIZATI
COMPILE_MAXOPTI =$(COMPILE_OPTIONS_$(F90)) $(STANDARD_CHECK_$(F90)) $(OPTIMIZATION_$(MAXOPTI)_$(F90)) $(INCLUDE_DIRS) $(PRECISION_$(F90))
###################################################################################################
DAMAGE_FILES = \
damage_none.o damage_brittle.o damage_ductile.o
damage_none.o damage_brittle.o damage_ductile.o damage_gurson.o
THERMAL_FILES = \
thermal_isothermal.o thermal_adiabatic.o
@ -482,6 +482,9 @@ damage_brittle.o: damage_brittle.f90 \
damage_ductile.o: damage_ductile.f90 \
lattice.o
damage_gurson.o: damage_gurson.f90 \
lattice.o
thermal_isothermal.o: thermal_isothermal.f90 \
lattice.o

86
code/constitutive.f90
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@ -112,13 +112,15 @@ subroutine constitutive_init
LOCAL_DAMAGE_none_ID, &
LOCAL_DAMAGE_brittle_ID, &
LOCAL_DAMAGE_ductile_ID, &
LOCAL_DAMAGE_gurson_ID, &
LOCAL_THERMAL_isothermal_ID, &
LOCAL_THERMAL_adiabatic_ID, &
LOCAL_DAMAGE_NONE_label, &
LOCAL_DAMAGE_BRITTLE_label, &
LOCAL_DAMAGE_DUCTILE_label, &
LOCAL_THERMAL_ISOTHERMAL_label, &
LOCAL_THERMAL_ADIABATIC_label, &
LOCAL_DAMAGE_brittle_label, &
LOCAL_DAMAGE_ductile_label, &
LOCAL_DAMAGE_gurson_label, &
LOCAL_THERMAL_isothermal_label, &
LOCAL_THERMAL_adiabatic_label, &
plasticState, &
damageState, &
thermalState, &
@ -135,6 +137,7 @@ subroutine constitutive_init
use damage_none
use damage_brittle
use damage_ductile
use damage_gurson
use thermal_isothermal
use thermal_adiabatic
implicit none
@ -171,9 +174,10 @@ subroutine constitutive_init
! parse damage from config file
if (.not. IO_open_jobFile_stat(FILEUNIT,material_localFileExt)) & ! no local material configuration present...
call IO_open_file(FILEUNIT,material_configFile) ! ... open material.config file
if (any(phase_damage == LOCAL_DAMAGE_NONE_ID)) call damage_none_init(FILEUNIT)
if (any(phase_damage == LOCAL_DAMAGE_BRITTLE_ID)) call damage_brittle_init(FILEUNIT)
if (any(phase_damage == LOCAL_DAMAGE_DUCTILE_ID)) call damage_ductile_init(FILEUNIT)
if (any(phase_damage == LOCAL_DAMAGE_none_ID)) call damage_none_init(FILEUNIT)
if (any(phase_damage == LOCAL_DAMAGE_brittle_ID)) call damage_brittle_init(FILEUNIT)
if (any(phase_damage == LOCAL_DAMAGE_ductile_ID)) call damage_ductile_init(FILEUNIT)
if (any(phase_damage == LOCAL_DAMAGE_gurson_ID)) call damage_gurson_init(FILEUNIT)
close(FILEUNIT)
!--------------------------------------------------------------------------------------------------
@ -258,16 +262,21 @@ subroutine constitutive_init
thisNoutput => null()
thisOutput => null()
thisSize => null()
case (LOCAL_DAMAGE_BRITTLE_ID)
case (LOCAL_DAMAGE_brittle_ID)
outputName = LOCAL_DAMAGE_BRITTLE_label
thisNoutput => damage_brittle_Noutput
thisOutput => damage_brittle_output
thisSize => damage_brittle_sizePostResult
case (LOCAL_DAMAGE_DUCTILE_ID)
case (LOCAL_DAMAGE_ductile_ID)
outputName = LOCAL_DAMAGE_DUCTILE_label
thisNoutput => damage_ductile_Noutput
thisOutput => damage_ductile_output
thisSize => damage_ductile_sizePostResult
case (LOCAL_DAMAGE_gurson_ID)
outputName = LOCAL_DAMAGE_gurson_label
thisNoutput => damage_gurson_Noutput
thisOutput => damage_gurson_output
thisSize => damage_gurson_sizePostResult
case default
knownDamage = .false.
end select
@ -425,12 +434,13 @@ subroutine constitutive_microstructure(Tstar_v, Fe, Fp, ipc, ip, el)
phase_plasticity, &
phase_damage, &
material_phase, &
PLASTICITY_DISLOTWIN_ID, &
PLASTICITY_DISLOKMC_ID, &
PLASTICITY_TITANMOD_ID, &
PLASTICITY_NONLOCAL_ID, &
LOCAL_DAMAGE_BRITTLE_ID, &
LOCAL_DAMAGE_DUCTILE_ID
PLASTICITY_dislotwin_ID, &
PLASTICITY_dislokmc_ID, &
PLASTICITY_titanmod_ID, &
PLASTICITY_nonlocal_ID, &
LOCAL_DAMAGE_brittle_ID, &
LOCAL_DAMAGE_ductile_ID, &
LOCAL_DAMAGE_gurson_ID
use constitutive_titanmod, only: &
constitutive_titanmod_microstructure
@ -444,6 +454,8 @@ subroutine constitutive_microstructure(Tstar_v, Fe, Fp, ipc, ip, el)
damage_brittle_microstructure
use damage_ductile, only: &
damage_ductile_microstructure
use damage_gurson, only: &
damage_gurson_microstructure
implicit none
integer(pInt), intent(in) :: &
@ -473,12 +485,17 @@ subroutine constitutive_microstructure(Tstar_v, Fe, Fp, ipc, ip, el)
end select
select case (phase_damage(material_phase(ipc,ip,el)))
case (LOCAL_DAMAGE_BRITTLE_ID)
case (LOCAL_DAMAGE_brittle_ID)
damage = constitutive_getDamage(ipc,ip,el)
Tstar_v_effective = Tstar_v/(damage*damage)
damage = constitutive_getDamage(ipc,ip,el)
Tstar_v_effective = Tstar_v/(damage*damage)
call damage_brittle_microstructure(Tstar_v_effective, Fe, ipc, ip, el)
case (LOCAL_DAMAGE_DUCTILE_ID)
case (LOCAL_DAMAGE_ductile_ID)
call damage_ductile_microstructure(ipc, ip, el)
case (LOCAL_DAMAGE_gurson_ID)
call damage_gurson_microstructure(ipc, ip, el)
end select
@ -667,6 +684,7 @@ subroutine constitutive_collectDotState(Tstar_v, Lp, FeArray, FpArray, subdt, su
PLASTICITY_nonlocal_ID, &
LOCAL_DAMAGE_brittle_ID, &
LOCAL_DAMAGE_ductile_ID, &
LOCAL_DAMAGE_gurson_ID, &
LOCAL_THERMAL_adiabatic_ID
use constitutive_j2, only: &
constitutive_j2_dotState
@ -684,6 +702,8 @@ subroutine constitutive_collectDotState(Tstar_v, Lp, FeArray, FpArray, subdt, su
damage_brittle_dotState
use damage_ductile, only: &
damage_ductile_dotState
use damage_gurson, only: &
damage_gurson_dotState
use thermal_adiabatic, only: &
thermal_adiabatic_dotState
@ -728,11 +748,12 @@ subroutine constitutive_collectDotState(Tstar_v, Lp, FeArray, FpArray, subdt, su
end select
select case (phase_damage(material_phase(ipc,ip,el)))
case (LOCAL_DAMAGE_BRITTLE_ID)
case (LOCAL_DAMAGE_brittle_ID)
call damage_brittle_dotState(ipc, ip, el)
case (LOCAL_DAMAGE_DUCTILE_ID)
case (LOCAL_DAMAGE_ductile_ID)
call damage_ductile_dotState(Lp, ipc, ip, el)
case (LOCAL_DAMAGE_gurson_ID)
call damage_gurson_dotState(Lp, ipc, ip, el)
end select
select case (phase_thermal(material_phase(ipc,ip,el)))
@ -821,13 +842,16 @@ function constitutive_getLocalDamage(ipc, ip, el)
use material, only: &
material_phase, &
LOCAL_DAMAGE_none_ID, &
LOCAL_DAMAGE_BRITTLE_ID, &
LOCAL_DAMAGE_DUCTILE_ID, &
LOCAL_DAMAGE_brittle_ID, &
LOCAL_DAMAGE_ductile_ID, &
LOCAL_DAMAGE_gurson_ID, &
phase_damage
use damage_brittle, only: &
constitutive_brittle_getDamage
use damage_ductile, only: &
constitutive_ductile_getDamage
use damage_gurson, only: &
constitutive_gurson_getDamage
implicit none
integer(pInt), intent(in) :: &
@ -840,11 +864,14 @@ function constitutive_getLocalDamage(ipc, ip, el)
case (LOCAL_DAMAGE_none_ID)
constitutive_getLocalDamage = 1.0_pReal
case (LOCAL_DAMAGE_BRITTLE_ID)
case (LOCAL_DAMAGE_brittle_ID)
constitutive_getLocalDamage = constitutive_brittle_getDamage(ipc, ip, el)
case (LOCAL_DAMAGE_DUCTILE_ID)
case (LOCAL_DAMAGE_ductile_ID)
constitutive_getLocalDamage = constitutive_ductile_getDamage(ipc, ip, el)
case (LOCAL_DAMAGE_gurson_ID)
constitutive_getLocalDamage = constitutive_gurson_getDamage(ipc, ip, el)
end select
end function constitutive_getLocalDamage
@ -859,11 +886,14 @@ subroutine constitutive_putLocalDamage(ipc, ip, el, localDamage)
material_phase, &
LOCAL_DAMAGE_BRITTLE_ID, &
LOCAL_DAMAGE_DUCTILE_ID, &
LOCAL_DAMAGE_gurson_ID, &
phase_damage
use damage_brittle, only: &
constitutive_brittle_putDamage
use damage_ductile, only: &
constitutive_ductile_putDamage
use damage_gurson, only: &
constitutive_gurson_putDamage
implicit none
integer(pInt), intent(in) :: &
@ -879,6 +909,9 @@ subroutine constitutive_putLocalDamage(ipc, ip, el, localDamage)
case (LOCAL_DAMAGE_DUCTILE_ID)
call constitutive_ductile_putDamage(ipc, ip, el, localDamage)
case (LOCAL_DAMAGE_gurson_ID)
call constitutive_gurson_putDamage(ipc, ip, el, localDamage)
end select
@ -1041,6 +1074,7 @@ function constitutive_postResults(Tstar_v, FeArray, ipc, ip, el)
PLASTICITY_NONLOCAL_ID, &
LOCAL_DAMAGE_BRITTLE_ID, &
LOCAL_DAMAGE_DUCTILE_ID, &
LOCAL_DAMAGE_gurson_ID, &
LOCAL_THERMAL_ADIABATIC_ID
use constitutive_j2, only: &
#ifdef HDF
@ -1062,6 +1096,8 @@ function constitutive_postResults(Tstar_v, FeArray, ipc, ip, el)
damage_brittle_postResults
use damage_ductile, only: &
damage_ductile_postResults
use damage_gurson, only: &
damage_gurson_postResults
use thermal_adiabatic, only: &
thermal_adiabatic_postResults
#endif
@ -1121,6 +1157,8 @@ function constitutive_postResults(Tstar_v, FeArray, ipc, ip, el)
constitutive_postResults(startPos:endPos) = damage_brittle_postResults(ipc, ip, el)
case (LOCAL_DAMAGE_DUCTILE_ID)
constitutive_postResults(startPos:endPos) = damage_ductile_postResults(ipc, ip, el)
case (LOCAL_DAMAGE_gurson_ID)
constitutive_postResults(startPos:endPos) = damage_gurson_postResults(ipc, ip, el)
end select
startPos = endPos + 1_pInt

410
code/damage_gurson.f90 Normal file
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@ -0,0 +1,410 @@
!--------------------------------------------------------------------------------------------------
! $Id: damage_gurson.f90 3210 2014-06-17 15:24:44Z MPIE\m.diehl $
!--------------------------------------------------------------------------------------------------
!> @author Luv Sharma, Max-Planck-Institut für Eisenforschung GmbH
!> @author Pratheek Shanthraj, Max-Planck-Institut für Eisenforschung GmbH
!> @brief material subroutine incoprorating gurson damage
!> @details to be done
!--------------------------------------------------------------------------------------------------
module damage_gurson
use prec, only: &
pReal, &
pInt
implicit none
private
integer(pInt), dimension(:), allocatable, public, protected :: &
damage_gurson_sizePostResults !< cumulative size of post results
integer(pInt), dimension(:,:), allocatable, target, public :: &
damage_gurson_sizePostResult !< size of each post result output
character(len=64), dimension(:,:), allocatable, target, public :: &
damage_gurson_output !< name of each post result output
integer(pInt), dimension(:), allocatable, target, public :: &
damage_gurson_Noutput !< number of outputs per instance of this damage
real(pReal), dimension(:), allocatable, private :: &
damage_gurson_aTol, &
damage_gurson_critpStrain
enum, bind(c)
enumerator :: undefined_ID, &
local_damage_ID
end enum !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!11 ToDo
integer(kind(undefined_ID)), dimension(:,:), allocatable, private :: &
damage_gurson_outputID !< ID of each post result output
public :: &
damage_gurson_init, &
damage_gurson_stateInit, &
damage_gurson_aTolState, &
damage_gurson_dotState, &
damage_gurson_microstructure, &
constitutive_gurson_getDamage, &
constitutive_gurson_putDamage, &
damage_gurson_postResults
contains
!--------------------------------------------------------------------------------------------------
!> @brief module initialization
!> @details reads in material parameters, allocates arrays, and does sanity checks
!--------------------------------------------------------------------------------------------------
subroutine damage_gurson_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 mesh, only: &
mesh_maxNips, &
mesh_NcpElems
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: &
homogenization_maxNgrains, &
phase_damage, &
phase_damageInstance, &
phase_Noutput, &
LOCAL_DAMAGE_gurson_label, &
LOCAL_DAMAGE_gurson_ID, &
material_phase, &
damageState, &
MATERIAL_partPhase
use numerics,only: &
numerics_integrator
implicit none
integer(pInt), intent(in) :: fileUnit
integer(pInt), parameter :: MAXNCHUNKS = 7_pInt
integer(pInt), dimension(1+2*MAXNCHUNKS) :: positions
integer(pInt) :: maxNinstance,mySize=0_pInt,phase,instance,o
integer(pInt) :: sizeState, sizeDotState
integer(pInt) :: NofMyPhase
character(len=65536) :: &
tag = '', &
line = ''
write(6,'(/,a)') ' <<<+- damage_'//LOCAL_DAMAGE_gurson_LABEL//' init -+>>>'
write(6,'(a)') ' $Id: damage_gurson.f90 3210 2014-06-17 15:24:44Z MPIE\m.diehl $'
write(6,'(a15,a)') ' Current time: ',IO_timeStamp()
#include "compilation_info.f90"
maxNinstance = int(count(phase_damage == LOCAL_DAMAGE_gurson_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(damage_gurson_sizePostResults(maxNinstance), source=0_pInt)
allocate(damage_gurson_sizePostResult(maxval(phase_Noutput),maxNinstance),source=0_pInt)
allocate(damage_gurson_output(maxval(phase_Noutput),maxNinstance))
damage_gurson_output = ''
allocate(damage_gurson_outputID(maxval(phase_Noutput),maxNinstance), source=undefined_ID)
allocate(damage_gurson_Noutput(maxNinstance), source=0_pInt)
allocate(damage_gurson_critpStrain(maxNinstance), source=0.0_pReal)
allocate(damage_gurson_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 <phase>
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 (phase_damage(phase) == LOCAL_DAMAGE_gurson_ID) then ! do not short-circuit here (.and. with next if statemen). It's not safe in Fortran
instance = phase_damageInstance(phase) ! which instance of my damage is present phase
positions = IO_stringPos(line,MAXNCHUNKS)
tag = IO_lc(IO_stringValue(line,positions,1_pInt)) ! extract key
select case(tag)
case ('(output)')
select case(IO_lc(IO_stringValue(line,positions,2_pInt)))
case ('local_damage')
damage_gurson_Noutput(instance) = damage_gurson_Noutput(instance) + 1_pInt
damage_gurson_outputID(damage_gurson_Noutput(instance),instance) = local_damage_ID
damage_gurson_output(damage_gurson_Noutput(instance),instance) = &
IO_lc(IO_stringValue(line,positions,2_pInt))
end select
case ('critical_plastic_strain')
damage_gurson_critpStrain(instance) = IO_floatValue(line,positions,2_pInt)
case ('atol_damage')
damage_gurson_aTol(instance) = IO_floatValue(line,positions,2_pInt)
end select
endif; endif
enddo parsingFile
initializeInstances: do phase = 1_pInt, size(phase_damage)
if (phase_damage(phase) == LOCAL_DAMAGE_gurson_ID) then
NofMyPhase=count(material_phase==phase)
instance = phase_damageInstance(phase)
!--------------------------------------------------------------------------------------------------
! Determine size of postResults array
outputsLoop: do o = 1_pInt,damage_gurson_Noutput(instance)
select case(damage_gurson_outputID(o,instance))
case(local_damage_ID)
mySize = 1_pInt
end select
if (mySize > 0_pInt) then ! any meaningful output found
damage_gurson_sizePostResult(o,instance) = mySize
damage_gurson_sizePostResults(instance) = damage_gurson_sizePostResults(instance) + mySize
endif
enddo outputsLoop
! Determine size of state array
sizeDotState = 4_pInt
sizeState = 6_pInt
damageState(phase)%sizeState = sizeState
damageState(phase)%sizeDotState = sizeDotState
damageState(phase)%sizePostResults = damage_gurson_sizePostResults(instance)
allocate(damageState(phase)%aTolState (sizeState), source=0.0_pReal)
allocate(damageState(phase)%state0 (sizeState,NofMyPhase), source=0.0_pReal)
allocate(damageState(phase)%partionedState0 (sizeState,NofMyPhase), source=0.0_pReal)
allocate(damageState(phase)%subState0 (sizeState,NofMyPhase), source=0.0_pReal)
allocate(damageState(phase)%state (sizeState,NofMyPhase), source=0.0_pReal)
allocate(damageState(phase)%state_backup (sizeState,NofMyPhase), source=0.0_pReal)
allocate(damageState(phase)%dotState (sizeDotState,NofMyPhase), source=0.0_pReal)
allocate(damageState(phase)%deltaState (sizeDotState,NofMyPhase), source=0.0_pReal)
allocate(damageState(phase)%dotState_backup (sizeDotState,NofMyPhase), source=0.0_pReal)
if (any(numerics_integrator == 1_pInt)) then
allocate(damageState(phase)%previousDotState (sizeDotState,NofMyPhase), source=0.0_pReal)
allocate(damageState(phase)%previousDotState2 (sizeDotState,NofMyPhase), source=0.0_pReal)
endif
if (any(numerics_integrator == 4_pInt)) &
allocate(damageState(phase)%RK4dotState (sizeDotState,NofMyPhase), source=0.0_pReal)
if (any(numerics_integrator == 5_pInt)) &
allocate(damageState(phase)%RKCK45dotState (6,sizeDotState,NofMyPhase),source=0.0_pReal)
call damage_gurson_stateInit(phase,instance)
call damage_gurson_aTolState(phase,instance)
endif
enddo initializeInstances
end subroutine damage_gurson_init
!--------------------------------------------------------------------------------------------------
!> @brief sets the relevant NEW state values for a given instance of this damage
!--------------------------------------------------------------------------------------------------
subroutine damage_gurson_stateInit(phase,instance)
use material, only: &
damageState
implicit none
integer(pInt), intent(in) :: instance !< number specifying the instance of the damage
integer(pInt), intent(in) :: phase !< number specifying the phase of the damage
real(pReal), dimension(damageState(phase)%sizeState) :: tempState
tempState(1) = 1.0_pReal
tempState(2) = 0.0_pReal
tempState(3) = 1.0_pReal
damageState(phase)%state = spread(tempState,2,size(damageState(phase)%state(1,:)))
damageState(phase)%state0 = damageState(phase)%state
damageState(phase)%partionedState0 = damageState(phase)%state
end subroutine damage_gurson_stateInit
!--------------------------------------------------------------------------------------------------
!> @brief sets the relevant state values for a given instance of this damage
!--------------------------------------------------------------------------------------------------
subroutine damage_gurson_aTolState(phase,instance)
use material, only: &
damageState
implicit none
integer(pInt), intent(in) :: &
phase, &
instance ! number specifying the current instance of the damage
real(pReal), dimension(damageState(phase)%sizeState) :: tempTol
tempTol = damage_gurson_aTol(instance)
damageState(phase)%aTolState = tempTol
end subroutine damage_gurson_aTolState
!--------------------------------------------------------------------------------------------------
!> @brief calculates derived quantities from state
!--------------------------------------------------------------------------------------------------
subroutine damage_gurson_dotState(Lp, ipc, ip, el)
use material, only: &
mappingConstitutive, &
damageState
use math, only: &
math_equivStrain33, &
math_trace33
use lattice, only: &
lattice_DamageMobility
implicit none
real(pReal), intent(in), dimension(3,3) :: &
Lp
integer(pInt), intent(in) :: &
ipc, & !< component-ID of integration point
ip, & !< integration point
el !< element
integer(pInt) :: &
phase, constituent
phase = mappingConstitutive(2,ipc,ip,el)
constituent = mappingConstitutive(1,ipc,ip,el)
damageState(phase)%dotState(1,constituent) = &
(1.0_pReal/lattice_DamageMobility(phase))* &
(damageState(phase)%state(6,constituent) - &
damageState(phase)%state(1,constituent))
damageState(phase)%dotState(2,constituent) = &
damageState(phase)%dotState(3,constituent) + &
damageState(phase)%dotState(4,constituent) ! total rate of void fraction evolution
damageState(phase)%dotState(3,constituent) = &
damageState(phase)%state(6,constituent) + &
damageState(phase)%dotState(4,constituent) ! void nucleation rate
damageState(phase)%dotState(4,constituent) = &
(1_pReal - damageState(phase)%state(3,constituent)) * &
math_trace33(Lp) ! void growth rate( proportional to hydrostatic part of Lp )
end subroutine damage_gurson_dotState
!--------------------------------------------------------------------------------------------------
!> @brief calculates derived quantities from state
!--------------------------------------------------------------------------------------------------
subroutine damage_gurson_microstructure(ipc, ip, el)
use material, only: &
mappingConstitutive, &
phase_damageInstance, &
damageState
use math, only: &
math_Mandel6to33, &
math_mul33x33, &
math_transpose33, &
math_I3, &
math_norm33
implicit none
integer(pInt), intent(in) :: &
ipc, & !< component-ID of integration point
ip, & !< integration point
el !< element
integer(pInt) :: &
phase, constituent
phase = mappingConstitutive(2,ipc,ip,el)
constituent = mappingConstitutive(1,ipc,ip,el)
damageState(phase)%state(5,constituent) = 0.0_pReal !< a statistical measure of aeformation hetrogeneity
damageState(phase)%state(6,constituent) = min(damageState(phase)%state(6,constituent), &
damage_gurson_critpStrain(phase)/ &
damageState(phase)%state(2,constituent)) !< akin to damage surface
end subroutine damage_gurson_microstructure
!--------------------------------------------------------------------------------------------------
!> @brief returns temperature based on local damage model state layout
!--------------------------------------------------------------------------------------------------
function constitutive_gurson_getDamage(ipc, ip, el)
use material, only: &
mappingConstitutive, &
damageState
implicit none
integer(pInt), intent(in) :: &
ipc, & !< grain number
ip, & !< integration point number
el !< element number
real(pReal) :: constitutive_gurson_getDamage
constitutive_gurson_getDamage = &
damageState(mappingConstitutive(2,ipc,ip,el))%state(1,mappingConstitutive(1,ipc,ip,el))
end function constitutive_gurson_getDamage
!--------------------------------------------------------------------------------------------------
!> @brief returns damage value based on local damage
!--------------------------------------------------------------------------------------------------
subroutine constitutive_gurson_putDamage(ipc, ip, el, localDamage)
use material, only: &
mappingConstitutive, &
damageState
implicit none
integer(pInt), intent(in) :: &
ipc, & !< grain number
ip, & !< integration point number
el !< element number
real(pReal), intent(in) :: localDamage
damageState(mappingConstitutive(2,ipc,ip,el))%state(1,mappingConstitutive(1,ipc,ip,el)) = &
localDamage
end subroutine constitutive_gurson_putDamage
!--------------------------------------------------------------------------------------------------
!> @brief return array of constitutive results
!--------------------------------------------------------------------------------------------------
function damage_gurson_postResults(ipc,ip,el)
use material, only: &
mappingConstitutive, &
phase_damageInstance,&
damageState
implicit none
integer(pInt), intent(in) :: &
ipc, & !< component-ID of integration point
ip, & !< integration point
el !< element
real(pReal), dimension(damage_gurson_sizePostResults(phase_damageInstance(mappingConstitutive(2,ipc,ip,el)))) :: &
damage_gurson_postResults
integer(pInt) :: &
instance, phase, constituent, o, c
phase = mappingConstitutive(2,ipc,ip,el)
constituent = mappingConstitutive(1,ipc,ip,el)
instance = phase_damageInstance(phase)
c = 0_pInt
damage_gurson_postResults = 0.0_pReal
do o = 1_pInt,damage_gurson_Noutput(instance)
select case(damage_gurson_outputID(o,instance))
case (local_damage_ID)
damage_gurson_postResults(c+1_pInt) = damageState(phase)%state(1,constituent)
c = c + 1
end select
enddo
end function damage_gurson_postResults
end module damage_gurson

13
code/material.f90
View File

@ -30,6 +30,7 @@ module material
LOCAL_DAMAGE_none_label = 'none', &
LOCAL_DAMAGE_brittle_label = 'brittle', &
LOCAL_DAMAGE_ductile_label = 'ductile', &
LOCAL_DAMAGE_gurson_label = 'gurson', &
LOCAL_THERMAL_isothermal_label = 'isothermal', &
LOCAL_THERMAL_adiabatic_label = 'adiabatic', &
FIELD_DAMAGE_local_label = 'local', &
@ -60,7 +61,8 @@ module material
enum, bind(c)
enumerator :: LOCAL_DAMAGE_none_ID, &
LOCAL_DAMAGE_brittle_ID, &
LOCAL_DAMAGE_ductile_ID
LOCAL_DAMAGE_ductile_ID, &
LOCAL_DAMAGE_gurson_ID
end enum
enum, bind(c)
@ -216,6 +218,7 @@ module material
LOCAL_DAMAGE_none_ID, &
LOCAL_DAMAGE_brittle_ID, &
LOCAL_DAMAGE_ductile_ID, &
LOCAL_DAMAGE_gurson_ID, &
LOCAL_THERMAL_isothermal_ID, &
LOCAL_THERMAL_adiabatic_ID, &
FIELD_DAMAGE_local_ID, &
@ -789,12 +792,14 @@ subroutine material_parsePhase(fileUnit,myPart)
phase_plasticityInstance(section) = count(phase_plasticity(1:section) == phase_plasticity(section)) ! count instances
case ('damage')
select case (IO_lc(IO_stringValue(line,positions,2_pInt)))
case (LOCAL_DAMAGE_NONE_label)
case (LOCAL_DAMAGE_none_label)
phase_damage(section) = LOCAL_DAMAGE_none_ID
case (LOCAL_DAMAGE_BRITTLE_label)
case (LOCAL_DAMAGE_brittle_label)
phase_damage(section) = LOCAL_DAMAGE_BRITTLE_ID
case (LOCAL_DAMAGE_DUCTILE_label)
case (LOCAL_DAMAGE_ductile_label)
phase_damage(section) = LOCAL_DAMAGE_DUCTILE_ID
case (LOCAL_DAMAGE_gurson_label)
phase_damage(section) = LOCAL_DAMAGE_gurson_ID
case default
call IO_error(200_pInt,ext_msg=trim(IO_stringValue(line,positions,2_pInt)))
end select