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reintroduced dislocation hardening for bcc

This commit is contained in:
Franz Roters 2014-03-17 15:42:46 +00:00
parent 1f714052b8
commit 04b2011195
2 changed files with 10 additions and 10 deletions
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1
code/config/Phase_Dislotwin_Tungsten.config
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@ -32,5 +32,6 @@ D0 4.0e-5 # Vacancy diffusion prefactor [m**2/s]
Qsd 4.5e-19 # Activation energy for climb [J] Qsd 4.5e-19 # Activation energy for climb [J]
Catomicvolume 1.0 # Adj. parameter controlling the atomic volume [in b] Catomicvolume 1.0 # Adj. parameter controlling the atomic volume [in b]
Cedgedipmindistance 1.0 # Adj. parameter controlling the minimum dipole distance [in b] Cedgedipmindistance 1.0 # Adj. parameter controlling the minimum dipole distance [in b]
interaction_slipslip 1 1 1.4 1.4 1.4 1.4

19
code/constitutive_dislotwin.f90
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@ -857,21 +857,20 @@ function constitutive_dislotwin_stateInit(instance,phase)
constitutive_dislotwin_GrainSize(instance)/(1.0_pReal+invLambdaSlip0(i)*constitutive_dislotwin_GrainSize(instance)) constitutive_dislotwin_GrainSize(instance)/(1.0_pReal+invLambdaSlip0(i)*constitutive_dislotwin_GrainSize(instance))
constitutive_dislotwin_stateInit(5_pInt*ns+3_pInt*nt+1:6_pInt*ns+3_pInt*nt) = MeanFreePathSlip0 constitutive_dislotwin_stateInit(5_pInt*ns+3_pInt*nt+1:6_pInt*ns+3_pInt*nt) = MeanFreePathSlip0
forall (i = 1_pInt:ns) &
tauSlipThreshold0(i) = constitutive_dislotwin_SolidSolutionStrength(instance) + &
lattice_mu(phase)*constitutive_dislotwin_burgersPerSlipSystem(i,instance) * &
sqrt(dot_product((rhoEdge0+rhoEdgeDip0),constitutive_dislotwin_interactionMatrix_SlipSlip(i,1:ns,instance)))
if (lattice_structure(phase) == lattice_bcc_ID) then if (lattice_structure(phase) == lattice_bcc_ID) then
j = 0_pInt j = 0_pInt
slipFamiliesLoop: do f = 1_pInt,lattice_maxNslipFamily slipFamiliesLoop: do f = 1_pInt,lattice_maxNslipFamily
slipSystemsLoop: do i = 1_pInt,constitutive_dislotwin_Nslip(f,instance) slipSystemsLoop: do i = 1_pInt,constitutive_dislotwin_Nslip(f,instance)
j = j+1_pInt j = j+1_pInt
tauSlipThreshold0(i) = constitutive_dislotwin_tau_peierlsPerSlipFamily(f,instance) tauSlipThreshold0(j) = tauSlipThreshold0(j) + constitutive_dislotwin_tau_peierlsPerSlipFamily(f,instance)
enddo slipSystemsLoop enddo slipSystemsLoop
enddo slipFamiliesLoop enddo slipFamiliesLoop
else endif
forall (i = 1_pInt:ns) & constitutive_dislotwin_stateInit(6_pInt*ns+4_pInt*nt+1:7_pInt*ns+4_pInt*nt) = tauSlipThreshold0
tauSlipThreshold0(i) = constitutive_dislotwin_SolidSolutionStrength(instance) + &
lattice_mu(phase)*constitutive_dislotwin_burgersPerSlipSystem(i,instance) * &
sqrt(dot_product((rhoEdge0+rhoEdgeDip0),constitutive_dislotwin_interactionMatrix_SlipSlip(i,1:ns,instance)))
endif
constitutive_dislotwin_stateInit(6_pInt*ns+4_pInt*nt+1:7_pInt*ns+4_pInt*nt) = tauSlipThreshold0
@ -1477,8 +1476,8 @@ pure function constitutive_dislotwin_dotState(Tstar_v,Temperature,state,ipc,ip,e
EdgeDipDistance(j) = & EdgeDipDistance(j) = &
(3.0_pReal*lattice_mu(phase)*constitutive_dislotwin_burgersPerSlipSystem(j,instance))/& (3.0_pReal*lattice_mu(phase)*constitutive_dislotwin_burgersPerSlipSystem(j,instance))/&
(16.0_pReal*pi*abs(tau_slip(j))) (16.0_pReal*pi*abs(tau_slip(j)))
if (EdgeDipDistance(j)>state%p(5*ns+3*nt+j)) EdgeDipDistance(j)=state%p(5*ns+3*nt+j) if (EdgeDipDistance(j)>state%p(5*ns+3*nt+j)) EdgeDipDistance(j)=state%p(5*ns+3*nt+j)
if (EdgeDipDistance(j)<EdgeDipMinDistance) EdgeDipDistance(j)=EdgeDipMinDistance if (EdgeDipDistance(j)<EdgeDipMinDistance) EdgeDipDistance(j)=EdgeDipMinDistance
DotRhoDipFormation(j) = & DotRhoDipFormation(j) = &
((2.0_pReal*EdgeDipDistance(j))/constitutive_dislotwin_burgersPerSlipSystem(j,instance))*& ((2.0_pReal*EdgeDipDistance(j))/constitutive_dislotwin_burgersPerSlipSystem(j,instance))*&
state%p(j)*abs(gdot_slip(j))*constitutive_dislotwin_dipoleFormationFactor(instance) state%p(j)*abs(gdot_slip(j))*constitutive_dislotwin_dipoleFormationFactor(instance)