simpler loop structures for better readability
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@ -1247,31 +1247,31 @@ subroutine plastic_dislotwin_LpAndItsTangent(Lp,dLp_dTstar99,Tstar_v,Temperature
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dgdot_dtauslip = 0.0_pReal
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dgdot_dtauslip = 0.0_pReal
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slipSystems: do j = 1_pInt, prm%totalNslip
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slipSystems: do j = 1_pInt, prm%totalNslip
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tau_slip(j) = math_mul33xx33(S,prm%Schmid_slip(1:3,1:3,j))
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tau_slip(j) = math_mul33xx33(S,prm%Schmid_slip(1:3,1:3,j))
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if((abs(tau_slip(j))-state(instance)%threshold_stress_slip(j,of)) > tol_math_check) then
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if((abs(tau_slip(j))-state(instance)%threshold_stress_slip(j,of)) > tol_math_check) then
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stressRatio =((abs(tau_slip(j))- state(instance)%threshold_stress_slip(j,of))/&
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stressRatio =((abs(tau_slip(j))- state(instance)%threshold_stress_slip(j,of))/&
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(prm%SolidSolutionStrength+prm%tau_peierls(j)))
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(prm%SolidSolutionStrength+prm%tau_peierls(j)))
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StressRatio_p = stressRatio** prm%p(j)
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StressRatio_p = stressRatio** prm%p(j)
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StressRatio_pminus1 = stressRatio**(prm%p(j)-1.0_pReal)
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StressRatio_pminus1 = stressRatio**(prm%p(j)-1.0_pReal)
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BoltzmannRatio = prm%Qedge(j)/(kB*Temperature)
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BoltzmannRatio = prm%Qedge(j)/(kB*Temperature)
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!* Initial shear rates
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!* Initial shear rates
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DotGamma0 = state(instance)%rhoEdge(j,of)*prm%burgers_slip(j)* prm%v0(j)
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DotGamma0 = state(instance)%rhoEdge(j,of)*prm%burgers_slip(j)* prm%v0(j)
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!* Shear rates due to slip
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!* Shear rates due to slip
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gdot_slip(j) = DotGamma0 *sign(exp(-BoltzmannRatio*(1-StressRatio_p)** prm%q(j)), tau_slip(j))
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gdot_slip(j) = DotGamma0 *sign(exp(-BoltzmannRatio*(1-StressRatio_p)** prm%q(j)), tau_slip(j))
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!* Derivatives of shear rates
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!* Derivatives of shear rates
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dgdot_dtauslip(j) = abs(gdot_slip(j))*BoltzmannRatio*prm%p(j) * prm%q(j) &
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dgdot_dtauslip(j) = abs(gdot_slip(j))*BoltzmannRatio*prm%p(j) * prm%q(j) &
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/ (prm%SolidSolutionStrength+prm%tau_peierls(j)) &
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/ (prm%SolidSolutionStrength+prm%tau_peierls(j)) &
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* StressRatio_pminus1*(1-StressRatio_p)**(prm%q(j)-1.0_pReal)
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* StressRatio_pminus1*(1-StressRatio_p)**(prm%q(j)-1.0_pReal)
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endif
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endif
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Lp = Lp + gdot_slip(j)*prm%Schmid_slip(1:3,1:3,j)
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Lp = Lp + gdot_slip(j)*prm%Schmid_slip(1:3,1:3,j)
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forall (k=1_pInt:3_pInt,l=1_pInt:3_pInt,m=1_pInt:3_pInt,n=1_pInt:3_pInt) &
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forall (k=1_pInt:3_pInt,l=1_pInt:3_pInt,m=1_pInt:3_pInt,n=1_pInt:3_pInt) &
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dLp_dTstar3333(k,l,m,n) = dLp_dTstar3333(k,l,m,n) &
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dLp_dTstar3333(k,l,m,n) = dLp_dTstar3333(k,l,m,n) &
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+ dgdot_dtauslip(j) * prm%Schmid_slip(k,l,j) * prm%Schmid_slip(m,n,j)
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+ dgdot_dtauslip(j) * prm%Schmid_slip(k,l,j) * prm%Schmid_slip(m,n,j)
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enddo slipSystems
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enddo slipSystems
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!--------------------------------------------------------------------------------------------------
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!--------------------------------------------------------------------------------------------------
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@ -1330,10 +1330,8 @@ subroutine plastic_dislotwin_LpAndItsTangent(Lp,dLp_dTstar99,Tstar_v,Temperature
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Lp = Lp + gdot_sb(j)*sb_Smatrix
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Lp = Lp + gdot_sb(j)*sb_Smatrix
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forall (k=1_pInt:3_pInt,l=1_pInt:3_pInt,m=1_pInt:3_pInt,n=1_pInt:3_pInt) &
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forall (k=1_pInt:3_pInt,l=1_pInt:3_pInt,m=1_pInt:3_pInt,n=1_pInt:3_pInt) &
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dLp_dTstar3333(k,l,m,n) = &
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dLp_dTstar3333(k,l,m,n) = dLp_dTstar3333(k,l,m,n) &
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dLp_dTstar3333(k,l,m,n) + dgdot_dtausb(j)*&
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+ dgdot_dtausb(j)* sb_Smatrix(k,l) * sb_Smatrix(m,n)
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sb_Smatrix(k,l)*&
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sb_Smatrix(m,n)
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enddo
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enddo
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end if
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end if
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@ -1517,14 +1515,9 @@ subroutine plastic_dislotwin_dotState(Tstar_v,Temperature,ipc,ip,el)
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!* Dislocation density evolution
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!* Dislocation density evolution
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gdot_slip = 0.0_pReal
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gdot_slip = 0.0_pReal
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j = 0_pInt
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slipSystems: do j = 1_pInt, prm%totalNslip
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do f = 1_pInt,size(prm%Nslip,1)
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index_myFamily = sum(lattice_NslipSystem(1:f-1_pInt,ph)) ! at which index starts my family
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do i = 1_pInt,prm%Nslip(f) ! process each (active) slip system in family
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j = j+1_pInt
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!* Resolved shear stress on slip system
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!* Resolved shear stress on slip system
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tau_slip(j) = math_mul33xx33(S,lattice_Sslip(1:3,1:3,1,index_myFamily+i,ph))
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tau_slip(j) = math_mul33xx33(S,prm%Schmid_slip(1:3,1:3,j))
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if((abs(tau_slip(j))-state(instance)%threshold_stress_slip(j,of)) > tol_math_check) then
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if((abs(tau_slip(j))-state(instance)%threshold_stress_slip(j,of)) > tol_math_check) then
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!* Stress ratios
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!* Stress ratios
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@ -1595,8 +1588,7 @@ subroutine plastic_dislotwin_dotState(Tstar_v,Temperature,ipc,ip,el)
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!* Dotstate for accumulated shear due to slip
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!* Dotstate for accumulated shear due to slip
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dotState(instance)%accshear_slip(j,of) = abs(gdot_slip(j))
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dotState(instance)%accshear_slip(j,of) = abs(gdot_slip(j))
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enddo
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enddo slipSystems
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enddo
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!* Twin volume fraction evolution
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!* Twin volume fraction evolution
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j = 0_pInt
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j = 0_pInt
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@ -1606,7 +1598,7 @@ subroutine plastic_dislotwin_dotState(Tstar_v,Temperature,ipc,ip,el)
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j = j+1_pInt
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j = j+1_pInt
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!* Resolved shear stress on twin system
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!* Resolved shear stress on twin system
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tau_twin(j) = math_mul33xx33(S,lattice_Stwin(1:3,1:3,index_myFamily+i,ph))
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tau_twin(j) = math_mul33xx33(S,prm%Schmid_slip(1:3,1:3,j))
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!* Stress ratios
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!* Stress ratios
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if (tau_twin(j) > tol_math_check) then
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if (tau_twin(j) > tol_math_check) then
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StressRatio_r = (state(instance)%threshold_stress_twin(j,of)/&
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StressRatio_r = (state(instance)%threshold_stress_twin(j,of)/&
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