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hardening does not depend on damage

This commit is contained in:
Pratheek Shanthraj 2014-08-10 10:47:12 +00:00
parent b6ccbc0fe9
commit 0a01d5f3a1
3 changed files with 15 additions and 19 deletions
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8
code/constitutive.f90
View File

@ -538,8 +538,6 @@ subroutine constitutive_collectDotState(Tstar_v, FeArray, FpArray, Temperature,
PLASTICITY_DISLOKMC_ID, &
PLASTICITY_TITANMOD_ID, &
PLASTICITY_NONLOCAL_ID
use constitutive_damage, only: &
constitutive_damageValue
use constitutive_j2, only: &
constitutive_j2_dotState
use constitutive_phenopowerlaw, only: &
@ -578,9 +576,9 @@ subroutine constitutive_collectDotState(Tstar_v, FeArray, FpArray, Temperature,
select case (phase_plasticity(material_phase(ipc,ip,el)))
case (PLASTICITY_J2_ID)
call constitutive_j2_dotState (Tstar_v,constitutive_damageValue(ipc,ip,el),ipc,ip,el)
call constitutive_j2_dotState (Tstar_v,ipc,ip,el)
case (PLASTICITY_PHENOPOWERLAW_ID)
call constitutive_phenopowerlaw_dotState(Tstar_v,constitutive_damageValue(ipc,ip,el),ipc,ip,el)
call constitutive_phenopowerlaw_dotState(Tstar_v,ipc,ip,el)
case (PLASTICITY_DISLOTWIN_ID)
call constitutive_dislotwin_dotState (Tstar_v,Temperature,ipc,ip,el)
case (PLASTICITY_DISLOKMC_ID)
@ -725,7 +723,7 @@ function constitutive_postResults(Tstar_v, FeArray, temperature, ipc, ip, el)
case (PLASTICITY_TITANMOD_ID)
constitutive_postResults = constitutive_titanmod_postResults (ipc,ip,el)
case (PLASTICITY_J2_ID)
constitutive_postResults= constitutive_j2_postResults (Tstar_v,ipc,ip,el)
constitutive_postResults= constitutive_j2_postResults (Tstar_v,constitutive_damageValue(ipc,ip,el),ipc,ip,el)
case (PLASTICITY_PHENOPOWERLAW_ID)
constitutive_postResults = constitutive_phenopowerlaw_postResults(Tstar_v,constitutive_damageValue(ipc,ip,el),ipc,ip,el)
case (PLASTICITY_DISLOTWIN_ID)

12
code/constitutive_j2.f90
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@ -421,7 +421,7 @@ end subroutine constitutive_j2_LpAndItsTangent
!--------------------------------------------------------------------------------------------------
!> @brief calculates the rate of change of microstructure
!--------------------------------------------------------------------------------------------------
subroutine constitutive_j2_dotState(Tstar_v,damage,ipc,ip,el)
subroutine constitutive_j2_dotState(Tstar_v,ipc,ip,el)
use math, only: &
math_mul6x6
use mesh, only: &
@ -443,8 +443,6 @@ subroutine constitutive_j2_dotState(Tstar_v,damage,ipc,ip,el)
el !< element
real(pReal), dimension(6) :: &
Tstar_dev_v !< deviatoric part of the 2nd Piola Kirchhoff stress tensor in Mandel notation
real(pReal), intent(in) :: &
damage
real(pReal) :: &
gamma_dot, & !< strainrate
hardening, & !< hardening coefficient
@ -469,7 +467,7 @@ subroutine constitutive_j2_dotState(Tstar_v,damage,ipc,ip,el)
! strain rate
gamma_dot = constitutive_j2_gdot0(instance) * ( sqrt(1.5_pReal) * norm_Tstar_dev &
/ &!-----------------------------------------------------------------------------------
(damage*constitutive_j2_fTaylor(instance)*plasticState(ph)%state(1,of)) )**constitutive_j2_n(instance)
(constitutive_j2_fTaylor(instance)*plasticState(ph)%state(1,of)) )**constitutive_j2_n(instance)
!--------------------------------------------------------------------------------------------------
! hardening coefficient
@ -505,7 +503,7 @@ end subroutine constitutive_j2_dotState
!--------------------------------------------------------------------------------------------------
!> @brief return array of constitutive results
!--------------------------------------------------------------------------------------------------
function constitutive_j2_postResults(Tstar_v,ipc,ip,el)
function constitutive_j2_postResults(Tstar_v,damage,ipc,ip,el)
use math, only: &
math_mul6x6
use mesh, only: &
@ -522,6 +520,8 @@ function constitutive_j2_postResults(Tstar_v,ipc,ip,el)
implicit none
real(pReal), dimension(6), intent(in) :: &
Tstar_v !< 2nd Piola Kirchhoff stress tensor in Mandel notation
real(pReal), intent(in) :: &
damage
integer(pInt), intent(in) :: &
ipc, & !< component-ID of integration point
ip, & !< integration point
@ -562,7 +562,7 @@ function constitutive_j2_postResults(Tstar_v,ipc,ip,el)
constitutive_j2_postResults(c+1_pInt) = &
constitutive_j2_gdot0(instance) * ( sqrt(1.5_pReal) * norm_Tstar_dev &
/ &!----------------------------------------------------------------------------------
(constitutive_j2_fTaylor(instance) * plasticState(ph)%state(1,of)) ) ** constitutive_j2_n(instance)
(damage * constitutive_j2_fTaylor(instance) * plasticState(ph)%state(1,of)) ) ** constitutive_j2_n(instance)
c = c + 1_pInt
end select
enddo outputsLoop

14
code/constitutive_phenopowerlaw.f90
View File

@ -821,7 +821,7 @@ end subroutine constitutive_phenopowerlaw_LpAndItsTangent
!--------------------------------------------------------------------------------------------------
!> @brief calculates the rate of change of microstructure
!--------------------------------------------------------------------------------------------------
subroutine constitutive_phenopowerlaw_dotState(Tstar_v,damage,ipc,ip,el)
subroutine constitutive_phenopowerlaw_dotState(Tstar_v,ipc,ip,el)
use lattice, only: &
lattice_Sslip_v, &
lattice_Stwin_v, &
@ -844,8 +844,6 @@ subroutine constitutive_phenopowerlaw_dotState(Tstar_v,damage,ipc,ip,el)
implicit none
real(pReal), dimension(6), intent(in) :: &
Tstar_v !< 2nd Piola Kirchhoff stress tensor in Mandel notation
real(pReal), intent(in) :: &
damage
integer(pInt), intent(in) :: &
ipc, & !< component-ID of integration point
ip, & !< integration point
@ -920,8 +918,8 @@ subroutine constitutive_phenopowerlaw_dotState(Tstar_v,damage,ipc,ip,el)
dot_product(Tstar_v,lattice_Sslip_v(1:6,2*k+1,index_myFamily+i,ph))
enddo
gdot_slip(j) = constitutive_phenopowerlaw_gdot0_slip(instance)*0.5_pReal* &
((abs(tau_slip_pos(j))/(damage*plasticState(ph)%state(j,of)))**constitutive_phenopowerlaw_n_slip(instance) &
+(abs(tau_slip_neg(j))/(damage*plasticState(ph)%state(j,of)))**constitutive_phenopowerlaw_n_slip(instance))&
((abs(tau_slip_pos(j))/(plasticState(ph)%state(j,of)))**constitutive_phenopowerlaw_n_slip(instance) &
+(abs(tau_slip_neg(j))/(plasticState(ph)%state(j,of)))**constitutive_phenopowerlaw_n_slip(instance))&
*sign(1.0_pReal,tau_slip_pos(j))
enddo
enddo slipFamiliesLoop1
@ -942,7 +940,7 @@ subroutine constitutive_phenopowerlaw_dotState(Tstar_v,damage,ipc,ip,el)
tau_twin(j) = dot_product(Tstar_v,lattice_Stwin_v(1:6,index_myFamily+i,ph))
gdot_twin(j) = (1.0_pReal-plasticState(ph)%state(index_F,of))*& ! 1-F
constitutive_phenopowerlaw_gdot0_twin(instance)*&
(abs(tau_twin(j))/(damage*plasticState(ph)%state(nslip+j,of)))**&
(abs(tau_twin(j))/(plasticState(ph)%state(nslip+j,of)))**&
constitutive_phenopowerlaw_n_twin(instance)*max(0.0_pReal,sign(1.0_pReal,tau_twin(j)))
enddo
enddo twinFamiliesLoop1
@ -953,7 +951,7 @@ subroutine constitutive_phenopowerlaw_dotState(Tstar_v,damage,ipc,ip,el)
slipFamiliesLoop2: do f = 1_pInt,lattice_maxNslipFamily
do i = 1_pInt,constitutive_phenopowerlaw_Nslip(f,instance) ! process each (active) slip system in family
j = j+1_pInt
plasticState(ph)%dotState(j,of) = & ! evolution of slip resistance j
plasticState(ph)%dotState(j,of) = & ! evolution of slip resistance j
c_SlipSlip * left_SlipSlip(j) * &
dot_product(constitutive_phenopowerlaw_hardeningMatrix_SlipSlip(j,1:nSlip,instance), &
right_SlipSlip*abs(gdot_slip)) + & ! dot gamma_slip modulated by right-side slip factor
@ -968,7 +966,7 @@ subroutine constitutive_phenopowerlaw_dotState(Tstar_v,damage,ipc,ip,el)
j = 0_pInt
twinFamiliesLoop2: do f = 1_pInt,lattice_maxNtwinFamily
index_myFamily = sum(lattice_NtwinSystem(1:f-1_pInt,ph)) ! at which index starts my family
index_myFamily = sum(lattice_NtwinSystem(1:f-1_pInt,ph)) ! at which index starts my family
do i = 1_pInt,constitutive_phenopowerlaw_Ntwin(f,instance) ! process each (active) twin system in family
j = j+1_pInt
plasticState(ph)%dotState(j+nSlip,of) = & ! evolution of twin resistance j