update physics in phenoplus module
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Chen Zhang
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54f5214360
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2a2f558416
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@ -747,6 +747,7 @@ subroutine plastic_phenoplus_microstructure(orientation,ipc,ip,el)
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math_mul33x33, &
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math_mul3x3, &
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math_transpose33, &
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math_qDot, &
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math_qRot, &
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indeg
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@ -769,7 +770,6 @@ subroutine plastic_phenoplus_microstructure(orientation,ipc,ip,el)
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lattice_sd, &
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lattice_qDisorientation
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!***input variables
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implicit none
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integer(pInt), intent(in) :: &
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@ -788,6 +788,7 @@ subroutine plastic_phenoplus_microstructure(orientation,ipc,ip,el)
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vld_Nneighbors, & !number of my valid neighbors
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n, & !neighbor index (for iterating through all neighbors)
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ns, & !number of slip system
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nns, & !number of slip in my neighbors
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nt, & !number of twin system
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me_slip, & !my slip system index
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neighbor_el, & !element number of neighboring material point
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@ -795,18 +796,28 @@ subroutine plastic_phenoplus_microstructure(orientation,ipc,ip,el)
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neighbor_n, & !I have no idea what is this
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neighbor_of, & !spatial position in memory for this neighbor (offset)
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neighbor_ph, & !neighbor's phase
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neighbor_tex, & !neighbor's texture ID
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ne_slip_ac, & !loop to find neighbor shear
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ne_slip, & !slip system index for neighbor
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index_kappa, & !index of pushup factors in plasticState
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offset_acshear_slip, & !offset in PlasticState for the accumulative shear
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j !quickly loop through slip families
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real(pReal) kappa_max, & !
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mprimeavg
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weight_sum, & !temp storage for the denominator in weighting function
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tmp_myshear_slip, & !temp storage for accumulative shear for me
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mprimeavg, & !m' value for given slip system
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mprime_cut, & !m' cutoff to consider neighboring effect
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ratio_acshear, & !ratio between two slip system in two voxels
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avg_acshear_ne, & !the average accumulative shear from my neighbor
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tmp_mprime, & !temp holder for m' value
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tmp_acshear !temp holder for accumulative shear for m'
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real(pReal), dimension(plastic_phenoplus_totalNslip(phase_plasticityInstance(material_phase(1,ip,el)))) :: &
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m_primes, & !m' between me_alpha(one) and neighbor beta(all)
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me_acshear !temp storage for ac_shear of one particular system for me
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me_acshear, & !temp storage for ac_shear of one particular system for me
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ne_acshear !temp storage for ac_shear of one particular system for one of my neighbor
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real(pReal), dimension(3,plastic_phenoplus_totalNslip(phase_plasticityInstance(material_phase(1,ip,el)))) :: &
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slipNormal, &
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@ -823,17 +834,18 @@ subroutine plastic_phenoplus_microstructure(orientation,ipc,ip,el)
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Nneighbors = FE_NipNeighbors(FE_celltype(FE_geomtype(mesh_element(2,el))))
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ph = mappingConstitutive(2,ipc,ip,el) !get my phase
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of = mappingConstitutive(1,ipc,ip,el) !get my spatial location offset in memory
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textureID = material_texture(1,ip,el)
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textureID = material_texture(1,ip,el) !get my texture ID
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instance = phase_plasticityInstance(ph) !get my instance based on phase ID
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ns = plastic_phenoplus_totalNslip(instance)
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nt = plastic_phenoplus_totalNtwin(instance)
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offset_acshear_slip = ns + nt + 2_pInt
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index_kappa = ns + nt + 2_pInt + ns + nt !location of kappa in plasticState
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mprime_cut = 0.7_pReal !set by Dr.Bieler
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!***gather my accumulative shear from palsticState
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findMyShear: do j = 1_pInt,ns
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FINDMYSHEAR: do j = 1_pInt,ns
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me_acshear(j) = plasticState(ph)%state(offset_acshear_slip+j, of)
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enddo findMyShear
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enddo FINDMYSHEAR
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!***gather my orientation and slip systems
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my_orientation = orientation(1:4, ipc, ip, el)
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@ -842,41 +854,74 @@ subroutine plastic_phenoplus_microstructure(orientation,ipc,ip,el)
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kappa_max = plastic_phenoplus_kappa_max(instance) !maximum pushups allowed (READIN)
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!***calculate kappa between me and all my neighbors
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loopMySlip: do me_slip=1_pInt,ns
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LOOPMYSLIP: DO me_slip=1_pInt,ns
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vld_Nneighbors = Nneighbors
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tmp_myshear_slip = me_acshear(me_slip)
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tmp_mprime = 0.0_pReal !highest m' from all neighbors
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tmp_acshear = 0.0_pReal !accumulative shear from highest m'
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!***go through my neighbors to find highest m'
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loopNeighbors: do n=1_pInt,Nneighbors
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LOOPNEIGHBORS: DO n=1_pInt,Nneighbors
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neighbor_el = mesh_ipNeighborhood(1,n,ip,el)
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neighbor_ip = mesh_ipNeighborhood(2,n,ip,el)
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neighbor_n = 1 !It is ipc
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neighbor_of = mappingConstitutive(1, neighbor_n, neighbor_ip, neighbor_el)
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neighbor_ph = mappingConstitutive(2, neighbor_n, neighbor_ip, neighbor_el)
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neighbor_tex = material_texture(1,neighbor_ip,neighbor_el)
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neighbor_orientation = orientation(1:4, neighbor_n, neighbor_ip, neighbor_el) !ipc is always 1.
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absMisorientation = lattice_qDisorientation(my_orientation,neighbor_orientation) !no need for explicit calculation of symmetry
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!***only perform m' calculation for neighbor with the same phase
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if (ph==neighbor_ph) then
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loopNeighborSlip: do ne_slip=1_pInt,ns !assuming all have the same slip systems here
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absMisorientation = lattice_qDisorientation(my_orientation, &
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neighbor_orientation, &
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0_pInt) !no need for explicit calculation of symmetry
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!***find the accumulative shear for this neighbor
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LOOPFINDNEISHEAR: DO ne_slip_ac=1_pInt, ns
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ne_acshear(ne_slip_ac) = plasticState(ph)%state(offset_acshear_slip+ne_slip_ac, &
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neighbor_of)
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ENDDO LOOPFINDNEISHEAR
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!***calculate the average accumulative shear and use it as cutoff
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avg_acshear_ne = SUM(ne_acshear)/ns
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!***
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IF (ph==neighbor_ph) THEN
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!***walk through all the
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LOOPNEIGHBORSLIP: DO ne_slip=1_pInt,ns
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!***only consider slip system that is active (above average accumulative shear)
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IF (ne_acshear(ne_slip) > avg_acshear_ne) THEN
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m_primes(ne_slip) = abs(math_mul3x3(slipNormal(1:3,me_slip), &
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math_qRot(absMisorientation, slipNormal(1:3,ne_slip)))) &
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* abs(math_mul3x3(slipDirect(1:3,me_slip), &
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math_qRot(absMisorientation, slipDirect(1:3,ne_slip)))) !follow Philip's suggestions:
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!only using the geometrical compatibility for now
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enddo loopNeighborSlip
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ne_mprimes(n) = maxval(m_primes) !pick the highest m' out of all slip combinations
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else
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ne_mprimes(n) = 0.0_pReal !0 for other phase
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vld_Nneighbors = vld_Nneighbors - 1_pInt !kick neighbor with different phase out
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endif
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*abs(math_mul3x3(slipDirect(1:3,me_slip), &
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math_qRot(absMisorientation, slipDirect(1:3,ne_slip))))
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!***find the highest m' and corresponding accumulative shear
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IF (m_primes(ne_slip) > tmp_mprime) THEN
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tmp_mprime = m_primes(ne_slip)
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tmp_acshear = ne_acshear(ne_slip)
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ENDIF
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ENDIF
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ENDDO LOOPNEIGHBORSLIP
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enddo loopNeighbors
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ELSE
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ne_mprimes(n) = 0.0_pReal
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vld_Nneighbors = vld_Nneighbors - 1_pInt
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ENDIF
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mprimeavg = sum(ne_mprimes)/vld_Nneighbors !average the m' from all "good" neighbors
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plasticState(ph)%state(index_kappa+me_slip, of) = 1.0_pReal + & !calculate kappa
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2.0_pReal * &
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(kappa_max - 1.0_pReal) * &
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(1.0_pReal - mprimeavg)
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ENDDO LOOPNEIGHBORS
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enddo loopMySlip
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!***check if this element close to rim
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IF (vld_Nneighbors < Nneighbors) THEN
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!***rim voxel, no modification allowed
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plasticState(ph)%state(index_kappa+me_slip, of) = 1.0_pReal
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ELSE
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!***patch voxel, started to calculate push up factor for gamma_dot
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IF ((tmp_mprime > mprime_cut) .AND. (tmp_acshear > tmp_myshear_slip)) THEN
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plasticState(ph)%state(index_kappa+me_slip, of) = 1.0_pReal / tmp_mprime
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ELSE
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!***minimum damping factor is 0.5
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plasticState(ph)%state(index_kappa+me_slip, of) = 0.5_pReal + tmp_mprime * 0.5_pReal
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ENDIF
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ENDIF
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ENDDO LOOPMYSLIP
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end subroutine plastic_phenoplus_microstructure
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@ -970,25 +1015,32 @@ subroutine plastic_phenoplus_LpAndItsTangent(Lp,dLp_dTstar99,Tstar_v,ipc,ip,el)
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lattice_Sslip(1:3,1:3,2*k+1,index_myFamily+i,ph)
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enddo
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!insert non-local effect here by modify gdot with kappa in plastic state
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gdot_slip_pos = 0.5_pReal*plastic_phenoplus_gdot0_slip(instance)* &
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((abs(tau_slip_pos)/(plasticState(ph)%state(j, of)* &
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plasticState(ph)%state(j+index_kappa, of))) & !in-place modification of gdot
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**plastic_phenoplus_n_slip(instance))*sign(1.0_pReal,tau_slip_pos)
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gdot_slip_neg = 0.5_pReal*plastic_phenoplus_gdot0_slip(instance)* &
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((abs(tau_slip_neg)/(plasticState(ph)%state(j, of)* &
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plasticState(ph)%state(j+index_kappa, of))) & !?should we make it direction aware
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**plastic_phenoplus_n_slip(instance))*sign(1.0_pReal,tau_slip_neg)
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!***in case for future use
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!***insert non-local effect here by modify gdot with kappa in plastic state
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!***this implementation will most likely cause convergence issue
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! gdot_slip_pos = 0.5_pReal*plastic_phenoplus_gdot0_slip(instance)* &
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! ((abs(tau_slip_pos)/(plasticState(ph)%state(j, of))) & !in-place modification of gdot
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! ((abs(tau_slip_pos)/(plasticState(ph)%state(j, of)* &
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! plasticState(ph)%state(j+index_kappa, of))) & !in-place modification of gdot
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! **plastic_phenoplus_n_slip(instance))*sign(1.0_pReal,tau_slip_pos)
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! gdot_slip_neg = 0.5_pReal*plastic_phenoplus_gdot0_slip(instance)* &
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! ((abs(tau_slip_neg)/(plasticState(ph)%state(j, of))) & !?should we make it direction aware
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! ((abs(tau_slip_neg)/(plasticState(ph)%state(j, of)* &
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! plasticState(ph)%state(j+index_kappa, of))) & !?should we make it direction aware
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! **plastic_phenoplus_n_slip(instance))*sign(1.0_pReal,tau_slip_neg)
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!***original calculation
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gdot_slip_pos = 0.5_pReal*plastic_phenoplus_gdot0_slip(instance)* &
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((abs(tau_slip_pos)/(plasticState(ph)%state(j, of))) & !in-place modification of gdot
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**plastic_phenoplus_n_slip(instance))*sign(1.0_pReal,tau_slip_pos)
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gdot_slip_neg = 0.5_pReal*plastic_phenoplus_gdot0_slip(instance)* &
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((abs(tau_slip_neg)/(plasticState(ph)%state(j, of))) & !?should we make it direction aware
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**plastic_phenoplus_n_slip(instance))*sign(1.0_pReal,tau_slip_neg)
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!***MAGIC HERE***!
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!***directly modify the amount of shear happens considering neighborhood
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gdot_slip_pos = gdot_slip_pos * plasticState(ph)%state(j+index_kappa, of)
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gdot_slip_neg = gdot_slip_neg * plasticState(ph)%state(j+index_kappa, of)
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Lp = Lp + (1.0_pReal-plasticState(ph)%state(index_F,of))*& ! 1-F
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(gdot_slip_pos+gdot_slip_neg)*lattice_Sslip(1:3,1:3,1,index_myFamily+i,ph)
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@ -1074,8 +1126,8 @@ subroutine plastic_phenoplus_dotState(Tstar_v,ipc,ip,el)
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instance,ph, &
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nSlip,nTwin, &
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f,i,j,k, &
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index_Gamma,index_F,index_myFamily, &
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offset_accshear_slip,offset_accshear_twin, &
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index_Gamma,index_F,index_myFamily,&
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offset_accshear_slip,offset_accshear_twin, offset_kappa, &
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of
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real(pReal) :: &
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c_SlipSlip,c_TwinSlip,c_TwinTwin, &
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@ -1098,6 +1150,7 @@ subroutine plastic_phenoplus_dotState(Tstar_v,ipc,ip,el)
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index_F = nSlip + nTwin + 2_pInt
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offset_accshear_slip = nSlip + nTwin + 2_pInt
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offset_accshear_twin = nSlip + nTwin + 2_pInt + nSlip
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offset_kappa = nSlip + nTwin + 2_pInt + nSlip + nTwin
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plasticState(ph)%dotState(:,of) = 0.0_pReal
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@ -1121,11 +1174,18 @@ subroutine plastic_phenoplus_dotState(Tstar_v,ipc,ip,el)
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j = j+1_pInt
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left_SlipSlip(j) = 1.0_pReal ! no system-dependent left part
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left_SlipTwin(j) = 1.0_pReal ! no system-dependent left part
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!***original implementation
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right_SlipSlip(j) = abs(1.0_pReal-plasticState(ph)%state(j,of) / &
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(plastic_phenoplus_tausat_slip(f,instance)+ssat_offset)) &
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**plastic_phenoplus_a_slip(instance)&
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*sign(1.0_pReal,1.0_pReal-plasticState(ph)%state(j,of) / &
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(plastic_phenoplus_tausat_slip(f,instance)+ssat_offset))
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!***modify a_slip to get nonlocal effect
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! right_SlipSlip(j) = abs(1.0_pReal-plasticState(ph)%state(j,of) / &
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! (plastic_phenoplus_tausat_slip(f,instance)+ssat_offset)) &
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! **(plastic_phenoplus_a_slip(instance)*plasticState(ph)%state(j+offset_kappa, of))&
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! *sign(1.0_pReal,1.0_pReal-plasticState(ph)%state(j,of) / &
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! (plastic_phenoplus_tausat_slip(f,instance)+ssat_offset))
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right_TwinSlip(j) = 1.0_pReal ! no system-dependent part
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!--------------------------------------------------------------------------------------------------
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