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DAMASK_EICMD
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added history variable for brittle damage to prevent healing. renamed/removed some lattice damage tensors and symmetrize them.

This commit is contained in:
Pratheek Shanthraj 2014-09-23 12:22:34 +00:00
parent d2dee58703
commit 5ce49387f6
4 changed files with 46 additions and 64 deletions
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26
code/constitutive.f90
View File

@ -424,6 +424,10 @@ subroutine constitutive_microstructure(temperature, Tstar_v, Fe, Fp, ipc, ip, el
real(pReal), intent(in), dimension(3,3) :: &
Fe, & !< elastic deformation gradient
Fp !< plastic deformation gradient
real(pReal) :: damage, Tstar_v_effective(6)
damage = constitutive_getNonlocalDamage(ipc,ip,el)
Tstar_v_effective = Tstar_v/damage*damage
select case (phase_plasticity(material_phase(ipc,ip,el)))
@ -440,7 +444,7 @@ subroutine constitutive_microstructure(temperature, Tstar_v, Fe, Fp, ipc, ip, el
select case (phase_damage(material_phase(ipc,ip,el)))
case (LOCAL_DAMAGE_BRITTLE_ID)
call damage_brittle_microstructure(Tstar_v, Fe, ipc, ip, el)
call damage_brittle_microstructure(Tstar_v_effective, Fe, ipc, ip, el)
end select
@ -496,7 +500,7 @@ subroutine constitutive_LpAndItsTangent(Lp, dLp_dTstar, Tstar_v, temperature, ip
real(pReal) :: damage, Tstar_v_effective(6)
damage = constitutive_getNonlocalDamage(ipc,ip,el)
Tstar_v_effective = damage*damage*Tstar_v
Tstar_v_effective = Tstar_v/damage*damage
select case (phase_plasticity(material_phase(ipc,ip,el)))
case (PLASTICITY_NONE_ID)
@ -851,16 +855,16 @@ function constitutive_getNonlocalDamage(ipc, ip, el)
el !< element number
real(pReal) :: constitutive_getNonlocalDamage
select case(field_damage_type(material_homog(ip,el)))
case (FIELD_DAMAGE_LOCAL_ID)
constitutive_getNonlocalDamage = constitutive_getLocalDamage(ipc, ip, el)
case (FIELD_DAMAGE_NONLOCAL_ID)
constitutive_getNonlocalDamage = fieldDamage(material_homog(ip,el))% &
field(1,mappingHomogenization(1,ip,el)) ! Taylor type
select case(field_damage_type(material_homog(ip,el)))
case (FIELD_DAMAGE_LOCAL_ID)
constitutive_getNonlocalDamage = constitutive_getLocalDamage(ipc, ip, el)
case (FIELD_DAMAGE_NONLOCAL_ID)
constitutive_getNonlocalDamage = fieldDamage(material_homog(ip,el))% &
field(1,mappingHomogenization(1,ip,el)) ! Taylor type
end select
end select
end function constitutive_getNonlocalDamage
!--------------------------------------------------------------------------------------------------

24
code/damage_brittle.f90
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@ -25,8 +25,9 @@ module damage_brittle
integer(pInt), dimension(:), allocatable, private :: &
damage_brittle_Noutput !< number of outputs per instance of this damage
real(pReal), dimension(:), allocatable, public :: &
damage_brittle_aTol
real(pReal), dimension(:), allocatable, private :: &
damage_brittle_aTol, &
damage_brittle_critStrainEnergy
enum, bind(c)
enumerator :: undefined_ID, &
@ -117,6 +118,7 @@ subroutine damage_brittle_init(fileUnit)
damage_brittle_output = ''
allocate(damage_brittle_outputID(maxval(phase_Noutput),maxNinstance), source=undefined_ID)
allocate(damage_brittle_Noutput(maxNinstance), source=0_pInt)
allocate(damage_brittle_critStrainEnergy(maxNinstance), source=0.0_pReal)
allocate(damage_brittle_aTol(maxNinstance), source=0.0_pReal)
rewind(fileUnit)
@ -150,6 +152,9 @@ subroutine damage_brittle_init(fileUnit)
IO_lc(IO_stringValue(line,positions,2_pInt))
end select
case ('critical_strain_energy')
damage_brittle_critStrainEnergy(instance) = IO_floatValue(line,positions,2_pInt)
case ('atol_damage')
damage_brittle_aTol(instance) = IO_floatValue(line,positions,2_pInt)
@ -222,7 +227,7 @@ subroutine damage_brittle_stateInit(phase,instance)
real(pReal), dimension(damageState(phase)%sizeState) :: tempState
tempState(1) = 1.0_pReal
tempState(2) = 0.0_pReal
tempState(2) = 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
@ -283,16 +288,10 @@ subroutine damage_brittle_microstructure(Tstar_v, Fe, ipc, ip, el)
phase_damageInstance, &
damageState
use math, only: &
math_Mandel66to3333, &
math_Mandel6to33, &
math_mul33x33, &
math_mul3333xx33, &
math_transpose33, &
math_trace33, &
math_I3
use lattice, only: &
lattice_damageDiffusion33, &
lattice_C66
implicit none
integer(pInt), intent(in) :: &
@ -311,11 +310,10 @@ subroutine damage_brittle_microstructure(Tstar_v, Fe, ipc, ip, el)
phase = mappingConstitutive(2,ipc,ip,el)
constituent = mappingConstitutive(1,ipc,ip,el)
strain = 0.5_pReal*(math_mul33x33(math_transpose33(Fe),Fe)-math_I3)
stress = math_mul3333xx33(math_Mandel66to3333(lattice_C66(1:6,1:6,phase)),strain)
damageState(phase)%state(2,constituent) = min(1.0_pReal, &
math_trace33(lattice_damageDiffusion33(1:3,1:3,phase))/ &
sum(abs(stress*strain)))
damageState(phase)%state(2,constituent) = min(damageState(phase)%state(2,constituent), &
damage_brittle_critStrainEnergy(phase)/ &
sum(abs(math_Mandel6to33(Tstar_v)*strain)))
end subroutine damage_brittle_microstructure

8
code/homogenization.f90
View File

@ -974,10 +974,10 @@ function field_getDamageDiffusion33(ip,el)
case (FIELD_DAMAGE_LOCAL_ID)
field_getDamageDiffusion33 = 0.0_pReal
case (FIELD_DAMAGE_NONLOCAL_ID)
do ipc = 1, homogenization_Ngrains(mesh_element(3,el))
field_getDamageDiffusion33 = field_getDamageDiffusion33 + lattice_DamageDiffusion33(:,:,material_phase(ipc,ip,el))
enddo
case (FIELD_DAMAGE_NONLOCAL_ID)
do ipc = 1, homogenization_Ngrains(mesh_element(3,el))
field_getDamageDiffusion33 = field_getDamageDiffusion33 + lattice_DamageDiffusion33(:,:,material_phase(ipc,ip,el))
enddo
end select

52
code/lattice.f90
View File

@ -741,8 +741,7 @@ module lattice
real(pReal), dimension(:,:,:), allocatable, public, protected :: &
lattice_thermalConductivity33, &
lattice_thermalExpansion33, &
lattice_damageDiffusion33, &
lattice_surfaceEnergy33
lattice_damageDiffusion33
real(pReal), dimension(:), allocatable, public, protected :: &
lattice_damageMobility, &
lattice_massDensity, &
@ -1004,7 +1003,6 @@ subroutine lattice_init
allocate(lattice_damageMobility ( Nphases), source=0.0_pReal)
allocate(lattice_massDensity ( Nphases), source=0.0_pReal)
allocate(lattice_specificHeat ( Nphases), source=0.0_pReal)
allocate(lattice_surfaceEnergy33 (3,3,Nphases), source=0.0_pReal)
allocate(lattice_referenceTemperature (Nphases), source=0.0_pReal)
allocate(lattice_mu(Nphases), source=0.0_pReal)
@ -1110,11 +1108,11 @@ subroutine lattice_init
aM(section) = IO_floatValue(line,positions,2_pInt)
case ('cm', 'c_m', 'c_martensite')
cM(section) = IO_floatValue(line,positions,2_pInt)
case ('k11')
case ('thermal_conductivity11')
lattice_thermalConductivity33(1,1,section) = IO_floatValue(line,positions,2_pInt)
case ('k22')
case ('thermal_conductivity22')
lattice_thermalConductivity33(2,2,section) = IO_floatValue(line,positions,2_pInt)
case ('k33')
case ('thermal_conductivity33')
lattice_thermalConductivity33(3,3,section) = IO_floatValue(line,positions,2_pInt)
case ('thermal_expansion11')
lattice_thermalExpansion33(1,1,section) = IO_floatValue(line,positions,2_pInt)
@ -1122,38 +1120,20 @@ subroutine lattice_init
lattice_thermalExpansion33(2,2,section) = IO_floatValue(line,positions,2_pInt)
case ('thermal_expansion33')
lattice_thermalExpansion33(3,3,section) = IO_floatValue(line,positions,2_pInt)
case ('g11')
lattice_surfaceEnergy33(1,1,section) = IO_floatValue(line,positions,2_pInt)
case ('g22')
lattice_surfaceEnergy33(2,2,section) = IO_floatValue(line,positions,2_pInt)
case ('g33')
lattice_surfaceEnergy33(3,3,section) = IO_floatValue(line,positions,2_pInt)
case ('reference_temperature')
lattice_referenceTemperature(section) = IO_floatValue(line,positions,2_pInt)
case ('k_d11')
lattice_DamageDiffusion33(1,1,section) = IO_floatValue(line,positions,2_pInt)
case ('k_d12')
lattice_DamageDiffusion33(1,2,section) = IO_floatValue(line,positions,2_pInt)
case ('k_d13')
lattice_DamageDiffusion33(1,3,section) = IO_floatValue(line,positions,2_pInt)
case ('k_d21')
lattice_DamageDiffusion33(2,1,section) = IO_floatValue(line,positions,2_pInt)
case ('k_d22')
lattice_DamageDiffusion33(2,3,section) = IO_floatValue(line,positions,2_pInt)
case ('k_d23')
lattice_DamageDiffusion33(2,3,section) = IO_floatValue(line,positions,2_pInt)
case ('k_d31')
lattice_DamageDiffusion33(3,1,section) = IO_floatValue(line,positions,2_pInt)
case ('k_d32')
lattice_DamageDiffusion33(3,2,section) = IO_floatValue(line,positions,2_pInt)
case ('k_d33')
lattice_DamageDiffusion33(3,3,section) = IO_floatValue(line,positions,2_pInt)
case ('damage_mobility')
lattice_DamageMobility(section) = IO_floatValue(line,positions,2_pInt)
case ('specific_heat')
lattice_specificHeat(section) = IO_floatValue(line,positions,2_pInt)
case ('mass_density')
lattice_massDensity(section) = IO_floatValue(line,positions,2_pInt)
case ('reference_temperature')
lattice_referenceTemperature(section) = IO_floatValue(line,positions,2_pInt)
case ('damage_difusion11')
lattice_DamageDiffusion33(1,1,section) = IO_floatValue(line,positions,2_pInt)
case ('damage_difusion22')
lattice_DamageDiffusion33(2,2,section) = IO_floatValue(line,positions,2_pInt)
case ('damage_difusion33')
lattice_DamageDiffusion33(3,3,section) = IO_floatValue(line,positions,2_pInt)
case ('damage_mobility')
lattice_DamageMobility(section) = IO_floatValue(line,positions,2_pInt)
end select
endif
enddo
@ -1241,8 +1221,8 @@ subroutine lattice_initializeStructure(myPhase,CoverA,aA,aM,cM)
lattice_thermalConductivity33(1:3,1:3,myPhase))
lattice_thermalExpansion33(1:3,1:3,myPhase) = lattice_symmetrize33(lattice_structure(myPhase),&
lattice_thermalExpansion33(1:3,1:3,myPhase))
lattice_surfaceEnergy33(1:3,1:3,myPhase) = lattice_symmetrize33(lattice_structure(myPhase),&
lattice_surfaceEnergy33(1:3,1:3,myPhase))
lattice_DamageDiffusion33(1:3,1:3,myPhase) = lattice_symmetrize33(lattice_structure(myPhase),&
lattice_DamageDiffusion33(1:3,1:3,myPhase))
select case(lattice_structure(myPhase))
!--------------------------------------------------------------------------------------------------