- make sure that formerly blocked density is not able to move to neighbor until it is remobilized
- added some explicit indices instead of ":"
This commit is contained in:
Christoph Kords
parent
6d3f05b387
commit
3c25723139
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@ -1691,11 +1691,11 @@ integer(pInt) myInstance, & ! curren
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real(pReal), dimension(3,3,3,3) :: dLp_dTstar3333 ! derivative of Lp with respect to Tstar (3x3x3x3 matrix)
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real(pReal), dimension(3,3,2) :: nonSchmid_tensor
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real(pReal), dimension(constitutive_nonlocal_totalNslip(phase_plasticityInstance(material_phase(g,ip,el))),8) :: &
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rhoSgl ! single dislocation densities (including used)
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rhoSgl ! single dislocation densities (including blocked)
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real(pReal), dimension(constitutive_nonlocal_totalNslip(phase_plasticityInstance(material_phase(g,ip,el))),4) :: &
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v, & ! velocity
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tau, & ! resolved shear stress including non Schmid and backstress terms
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dgdot_dtau, & ! derivative of the shear rate with respect to the shear stress
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dgdot_dtau, & ! derivative of the shear rate with respect to the shear stress
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dv_dtau ! velocity derivative with respect to the shear stress
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real(pReal), dimension(constitutive_nonlocal_totalNslip(phase_plasticityInstance(material_phase(g,ip,el)))) :: &
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gdotTotal, & ! shear rate
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@ -1728,21 +1728,21 @@ where (abs(rhoSgl) * mesh_ipVolume(ip,el) ** 0.667_pReal < constitutive_nonlocal
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!*** get effective resolved shear stress
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do s = 1_pInt,ns
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tau(s,1:4) = math_mul6x6(Tstar_v, lattice_Sslip_v(:,1,constitutive_nonlocal_slipSystemLattice(s,myInstance),myStructure)) &
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tau(s,1:4) = math_mul6x6(Tstar_v, lattice_Sslip_v(1:6,1,constitutive_nonlocal_slipSystemLattice(s,myInstance),myStructure)) &
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+ tauBack(s)
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!*** adding non schmid contributions to ONLY screw components if present (i.e. if NnonSchmid(myStructure) > 0)
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nonSchmid_tensor(1:3,1:3,1) = &
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math_Mandel6to33(lattice_Sslip_v(:,1,constitutive_nonlocal_slipSystemLattice(s,myInstance),myStructure))
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math_Mandel6to33(lattice_Sslip_v(1:6,1,constitutive_nonlocal_slipSystemLattice(s,myInstance),myStructure))
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nonSchmid_tensor(1:3,1:3,2) = nonSchmid_tensor(1:3,1:3,1)
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do k = 1_pInt, NnonSchmid(myStructure)
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tau(s,3) = tau(s,3) + constitutive_nonlocal_nonSchmidCoeff(k,myInstance)* &
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math_mul6x6(Tstar_v, lattice_Sslip_v(:,2*k,constitutive_nonlocal_slipSystemLattice(s,myInstance),myStructure))
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math_mul6x6(Tstar_v, lattice_Sslip_v(1:6,2*k,constitutive_nonlocal_slipSystemLattice(s,myInstance),myStructure))
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tau(s,4) = tau(s,4) + constitutive_nonlocal_nonSchmidCoeff(k,myInstance)* &
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math_mul6x6(Tstar_v, lattice_Sslip_v(:,2*k+1,constitutive_nonlocal_slipSystemLattice(s,myInstance),myStructure))
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math_mul6x6(Tstar_v, lattice_Sslip_v(1:6,2*k+1,constitutive_nonlocal_slipSystemLattice(s,myInstance),myStructure))
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nonSchmid_tensor(1:3,1:3,1) = nonSchmid_tensor(1:3,1:3,1) + constitutive_nonlocal_nonSchmidCoeff(k,myInstance)*&
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math_Mandel6to33(lattice_Sslip_v(:,2*k,constitutive_nonlocal_slipSystemLattice(s,myInstance),myStructure))
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math_Mandel6to33(lattice_Sslip_v(1:6,2*k,constitutive_nonlocal_slipSystemLattice(s,myInstance),myStructure))
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nonSchmid_tensor(1:3,1:3,2) = nonSchmid_tensor(1:3,1:3,2) + constitutive_nonlocal_nonSchmidCoeff(k,myInstance)*&
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math_Mandel6to33(lattice_Sslip_v(:,2*k+1,constitutive_nonlocal_slipSystemLattice(s,myInstance),myStructure))
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math_Mandel6to33(lattice_Sslip_v(1:6,2*k+1,constitutive_nonlocal_slipSystemLattice(s,myInstance),myStructure))
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enddo
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enddo
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@ -2394,6 +2394,7 @@ if (.not. phase_localPlasticity(material_phase(g,ip,el))) then
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if (neighboring_v(s,t) * math_mul3x3(m(1:3,s,t), normal_neighbor2me) > 0.0_pReal & ! flux from my neighbor to me == entering flux for me
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.and. v(s,t) * neighboring_v(s,t) >= 0.0_pReal ) then ! ... only if no sign change in flux density
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do deads = 0_pInt,4_pInt,4_pInt
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if (deads == 4_pInt .and. neighboring_rhoSgl(s,t+4_pInt) * neighboring_v(s,t) < 0.0_pReal) exit ! make sure that formerly blocked density due to stress sign change is first remobilized, otherwise we directly enter here without having produced any strain at neighbor
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lineLength = abs(neighboring_rhoSgl(s,t+deads)) * neighboring_v(s,t) &
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* math_mul3x3(m(1:3,s,t), normal_neighbor2me) * area ! positive line length that wants to enter through this interface
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where (constitutive_nonlocal_compatibility(c,1_pInt:ns,s,n,ip,el) > 0.0_pReal) & ! positive compatibility...
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@ -2461,8 +2462,10 @@ if (.not. phase_localPlasticity(material_phase(g,ip,el))) then
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rhoDotFlux(s,t) = rhoDotFlux(s,t) - lineLength / mesh_ipVolume(ip,el) ! subtract dislocation flux from current type
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rhoDotFlux(s,t+4_pInt) = rhoDotFlux(s,t+4_pInt) + lineLength / mesh_ipVolume(ip,el) * (1.0_pReal - transmissivity) &
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* sign(1.0_pReal, vMe(s,t)) ! dislocation flux that is not able to leave through interface (because of low transmissivity) will remain as immobile single density at the material point
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lineLength = rhoSglMe(s,t+4_pInt) * vMe(s,t) * math_mul3x3(m(1:3,s,t), normal_me2neighbor) * area ! positive line length of deads that wants to leave through this interface
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rhoDotFlux(s,t+4_pInt) = rhoDotFlux(s,t+4_pInt) - lineLength / mesh_ipVolume(ip,el) * transmissivity ! dead dislocations leaving through this interface
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if (rhoSglMe(s,t+4_pInt) * vMe(s,t) > 0.0_pReal) then ! make sure that formerly blocked density due to stress sign change is first remobilized, otherwise we directly jump to neighbor without having produced any strain here
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lineLength = rhoSglMe(s,t+4_pInt) * vMe(s,t) * math_mul3x3(m(1:3,s,t), normal_me2neighbor) * area ! positive line length of deads that wants to leave through this interface
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rhoDotFlux(s,t+4_pInt) = rhoDotFlux(s,t+4_pInt) - lineLength / mesh_ipVolume(ip,el) * transmissivity ! dead dislocations leaving through this interface
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endif
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endif
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enddo
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enddo
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