works for no active slip systems
This commit is contained in:
Martin Diehl
parent
5d7ff888fc
commit
f8049b85be
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@ -12,15 +12,12 @@ submodule(constitutive) plastic_disloUCLA
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type :: tParameters
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real(pReal) :: &
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D, & !< grain size
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mu, & !< equivalent shear modulus
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D_0, & !< prefactor for self-diffusion coefficient
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Q_cl !< activation energy for dislocation climb
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D = 1.0_pReal, & !< grain size
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mu = 1.0_pReal, & !< equivalent shear modulus
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D_0 = 1.0_pReal, & !< prefactor for self-diffusion coefficient
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Q_cl = 1.0_pReal !< activation energy for dislocation climb
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real(pReal), allocatable, dimension(:) :: &
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rho_mob_0, & !< initial dislocation density
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rho_dip_0, & !< initial dipole density
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b_sl, & !< magnitude of burgers vector [m]
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nonSchmidCoeff, &
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D_a, &
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i_sl, & !< Adj. parameter for distance between 2 forest dislocations
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atomicVolume, &
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@ -36,7 +33,7 @@ submodule(constitutive) plastic_disloUCLA
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omega !< attempt frequency for kink pair nucleation
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real(pReal), allocatable, dimension(:,:) :: &
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h_sl_sl, & !< slip resistance from slip activity
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forestProjectionEdge
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forestProjection
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real(pReal), allocatable, dimension(:,:,:) :: &
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Schmid, &
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nonSchmid_pos, &
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@ -87,6 +84,10 @@ module subroutine plastic_disloUCLA_init
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startIndex, endIndex
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integer, dimension(:), allocatable :: &
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N_sl
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real, dimension(:), allocatable :: &
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rho_mob_0, & !< initial dislocation density
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rho_dip_0, & !< initial dipole density
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a !< non-Schmid coefficients
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character(len=pStringLen) :: &
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extmsg = ''
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@ -104,7 +105,6 @@ module subroutine plastic_disloUCLA_init
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allocate(dotState(Ninstance))
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allocate(dependentState(Ninstance))
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do p = 1, size(phase_plasticity)
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if (phase_plasticity(p) /= PLASTICITY_DISLOUCLA_ID) cycle
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associate(prm => param(phase_plasticityInstance(p)), &
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@ -127,25 +127,22 @@ module subroutine plastic_disloUCLA_init
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config%getFloat('c/a',defaultVal=0.0_pReal))
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if(trim(config%getString('lattice_structure')) == 'bcc') then
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prm%nonSchmidCoeff = config%getFloats('nonschmid_coefficients',&
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defaultVal = emptyRealArray)
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prm%nonSchmid_pos = lattice_nonSchmidMatrix(N_sl,prm%nonSchmidCoeff,+1)
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prm%nonSchmid_neg = lattice_nonSchmidMatrix(N_sl,prm%nonSchmidCoeff,-1)
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a = config%getFloats('nonschmid_coefficients',defaultVal = emptyRealArray)
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prm%nonSchmid_pos = lattice_nonSchmidMatrix(N_sl,a,+1)
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prm%nonSchmid_neg = lattice_nonSchmidMatrix(N_sl,a,-1)
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else
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allocate(prm%nonSchmidCoeff(0))
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prm%nonSchmid_pos = prm%Schmid
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prm%nonSchmid_neg = prm%Schmid
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endif
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prm%h_sl_sl = lattice_interaction_SlipBySlip(N_sl, &
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config%getFloats('interaction_slipslip'), &
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prm%h_sl_sl = lattice_interaction_SlipBySlip(N_sl,config%getFloats('interaction_slipslip'), &
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config%getString('lattice_structure'))
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prm%forestProjectionEdge = lattice_forestProjection_edge(N_sl,config%getString('lattice_structure'),&
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prm%forestProjection = lattice_forestProjection_edge(N_sl,config%getString('lattice_structure'),&
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config%getFloat('c/a',defaultVal=0.0_pReal))
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prm%forestProjectionEdge = transpose(prm%forestProjectionEdge)
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prm%forestProjection = transpose(prm%forestProjection)
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prm%rho_mob_0 = config%getFloats('rhoedge0', requiredSize=size(N_sl))
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prm%rho_dip_0 = config%getFloats('rhoedgedip0', requiredSize=size(N_sl))
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rho_mob_0 = config%getFloats('rhoedge0', requiredSize=size(N_sl))
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rho_dip_0 = config%getFloats('rhoedgedip0', requiredSize=size(N_sl))
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prm%v0 = config%getFloats('v0', requiredSize=size(N_sl))
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prm%b_sl = config%getFloats('slipburgers', requiredSize=size(N_sl))
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prm%delta_F = config%getFloats('qedge', requiredSize=size(N_sl))
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@ -169,8 +166,8 @@ module subroutine plastic_disloUCLA_init
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prm%dipoleformation = config%getFloat('dipoleformationfactor') > 0.0_pReal !should be on by default, ToDo: change to /key/-type key
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! expand: family => system
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prm%rho_mob_0 = math_expand(prm%rho_mob_0, N_sl)
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prm%rho_dip_0 = math_expand(prm%rho_dip_0, N_sl)
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rho_mob_0 = math_expand(rho_mob_0, N_sl)
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rho_dip_0 = math_expand(rho_dip_0, N_sl)
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prm%q = math_expand(prm%q, N_sl)
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prm%p = math_expand(prm%p, N_sl)
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prm%delta_F = math_expand(prm%delta_F, N_sl)
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@ -185,22 +182,25 @@ module subroutine plastic_disloUCLA_init
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prm%atomicVolume = math_expand(prm%atomicVolume, N_sl)
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prm%D_a = math_expand(prm%D_a, N_sl)
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! sanity checks
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if ( prm%D_0 <= 0.0_pReal) extmsg = trim(extmsg)//' D_0'
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if ( prm%Q_cl <= 0.0_pReal) extmsg = trim(extmsg)//' Q_cl'
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if (any(prm%rho_mob_0 < 0.0_pReal)) extmsg = trim(extmsg)//' rhoedge0'
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if (any(prm%rho_dip_0 < 0.0_pReal)) extmsg = trim(extmsg)//' rhoedgedip0'
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if (any(rho_mob_0 < 0.0_pReal)) extmsg = trim(extmsg)//' rhoedge0'
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if (any(rho_dip_0 < 0.0_pReal)) extmsg = trim(extmsg)//' rhoedgedip0'
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if (any(prm%v0 < 0.0_pReal)) extmsg = trim(extmsg)//' v0'
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if (any(prm%b_sl <= 0.0_pReal)) extmsg = trim(extmsg)//' slipb_sl'
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if (any(prm%b_sl <= 0.0_pReal)) extmsg = trim(extmsg)//' b_sl'
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if (any(prm%delta_F <= 0.0_pReal)) extmsg = trim(extmsg)//' qedge'
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if (any(prm%tau_0 < 0.0_pReal)) extmsg = trim(extmsg)//' tau_0'
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if (any(prm%D_a <= 0.0_pReal)) extmsg = trim(extmsg)//' cedgedipmindistance or slipb_sl'
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if (any(prm%atomicVolume <= 0.0_pReal)) extmsg = trim(extmsg)//' catomicvolume or slipb_sl'
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if (any(prm%D_a <= 0.0_pReal)) extmsg = trim(extmsg)//' cedgedipmindistance or b_sl'
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if (any(prm%atomicVolume <= 0.0_pReal)) extmsg = trim(extmsg)//' catomicvolume or b_sl'
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else slipActive
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allocate(prm%rho_mob_0(0))
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allocate(prm%rho_dip_0(0))
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rho_mob_0= emptyRealArray; rho_dip_0 = emptyRealArray
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allocate(prm%b_sl,prm%D_a,prm%i_sl,prm%atomicVolume,prm%tau_0, &
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prm%delta_F,prm%v0,prm%p,prm%q,prm%B,prm%kink_height,prm%w,prm%omega, &
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source = emptyRealArray)
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allocate(prm%forestProjection(0,0))
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allocate(prm%h_sl_sl (0,0))
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endif slipActive
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!--------------------------------------------------------------------------------------------------
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@ -216,7 +216,7 @@ module subroutine plastic_disloUCLA_init
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startIndex = 1
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endIndex = prm%sum_N_sl
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stt%rho_mob => plasticState(p)%state(startIndex:endIndex,:)
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stt%rho_mob= spread(prm%rho_mob_0,2,NipcMyPhase)
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stt%rho_mob = spread(rho_mob_0,2,NipcMyPhase)
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dot%rho_mob => plasticState(p)%dotState(startIndex:endIndex,:)
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plasticState(p)%atol(startIndex:endIndex) = config%getFloat('atol_rho',defaultVal=1.0_pReal)
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if (any(plasticState(p)%atol(startIndex:endIndex) < 0.0_pReal)) extmsg = trim(extmsg)//' atol_rho'
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@ -224,7 +224,7 @@ module subroutine plastic_disloUCLA_init
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startIndex = endIndex + 1
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endIndex = endIndex + prm%sum_N_sl
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stt%rho_dip => plasticState(p)%state(startIndex:endIndex,:)
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stt%rho_dip= spread(prm%rho_dip_0,2,NipcMyPhase)
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stt%rho_dip = spread(rho_dip_0,2,NipcMyPhase)
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dot%rho_dip => plasticState(p)%dotState(startIndex:endIndex,:)
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plasticState(p)%atol(startIndex:endIndex) = config%getFloat('atol_rho',defaultVal=1.0_pReal)
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@ -369,8 +369,7 @@ module subroutine plastic_disloUCLA_dependentState(instance,of)
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associate(prm => param(instance), stt => state(instance),dst => dependentState(instance))
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dislocationSpacing = sqrt(matmul(prm%forestProjectionEdge, &
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stt%rho_mob(:,of)+stt%rho_dip(:,of)))
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dislocationSpacing = sqrt(matmul(prm%forestProjection,stt%rho_mob(:,of)+stt%rho_dip(:,of)))
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dst%threshold_stress(:,of) = prm%mu*prm%b_sl &
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* sqrt(matmul(prm%h_sl_sl,stt%rho_mob(:,of)+stt%rho_dip(:,of)))
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@ -8,24 +8,21 @@ submodule(constitutive) plastic_phenopowerlaw
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type :: tParameters
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real(pReal) :: &
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gdot0_slip, & !< reference shear strain rate for slip
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gdot0_twin, & !< reference shear strain rate for twin
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n_slip, & !< stress exponent for slip
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n_twin, & !< stress exponent for twin
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spr, & !< push-up factor for slip saturation due to twinning
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c_1, &
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c_2, &
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c_3, &
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c_4, &
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h0_SlipSlip, & !< reference hardening slip - slip
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h0_TwinSlip, & !< reference hardening twin - slip
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h0_TwinTwin, & !< reference hardening twin - twin
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a_slip
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gdot0_slip = 1.0_pReal, & !< reference shear strain rate for slip
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gdot0_twin = 1.0_pReal, & !< reference shear strain rate for twin
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n_slip = 1.0_pReal, & !< stress exponent for slip
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n_twin = 1.0_pReal, & !< stress exponent for twin
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spr = 1.0_pReal, & !< push-up factor for slip saturation due to twinning
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c_1 = 1.0_pReal, &
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c_2 = 1.0_pReal, &
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c_3 = 1.0_pReal, &
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c_4 = 1.0_pReal, &
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h0_SlipSlip = 1.0_pReal, & !< reference hardening slip - slip
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h0_TwinSlip = 1.0_pReal, & !< reference hardening twin - slip
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h0_TwinTwin = 1.0_pReal, & !< reference hardening twin - twin
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a_slip = 1.0_pReal
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real(pReal), allocatable, dimension(:) :: &
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xi_slip_0, & !< initial critical shear stress for slip
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xi_twin_0, & !< initial critical shear stress for twin
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xi_slip_sat, & !< maximum critical shear stress for slip
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nonSchmidCoeff, &
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H_int, & !< per family hardening activity (optional)
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gamma_twin_char !< characteristic shear for twins
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real(pReal), allocatable, dimension(:,:) :: &
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@ -41,6 +38,8 @@ submodule(constitutive) plastic_phenopowerlaw
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integer :: &
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sum_N_sl, & !< total number of active slip system
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sum_N_tw !< total number of active twin systems
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logical :: &
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nonSchmidActive = .false.
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character(len=pStringLen), allocatable, dimension(:) :: &
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output
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end type tParameters
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@ -77,6 +76,10 @@ module subroutine plastic_phenopowerlaw_init
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startIndex, endIndex
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integer, dimension(:), allocatable :: &
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N_sl, N_tw
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real, dimension(:), allocatable :: &
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xi_slip_0, & !< initial critical shear stress for slip
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xi_twin_0, & !< initial critical shear stress for twin
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a !< non-Schmid coefficients
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character(len=pStringLen) :: &
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extmsg = ''
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@ -97,13 +100,6 @@ module subroutine plastic_phenopowerlaw_init
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stt => state(phase_plasticityInstance(p)), &
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config => config_phase(p))
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!--------------------------------------------------------------------------------------------------
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! optional parameters that need to be defined
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prm%c_1 = config%getFloat('twin_c',defaultVal=0.0_pReal)
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prm%c_2 = config%getFloat('twin_b',defaultVal=1.0_pReal)
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prm%c_3 = config%getFloat('twin_e',defaultVal=0.0_pReal)
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prm%c_4 = config%getFloat('twin_d',defaultVal=0.0_pReal)
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!--------------------------------------------------------------------------------------------------
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! slip related parameters
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N_sl = config%getInts('nslip',defaultVal=emptyIntArray)
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@ -113,12 +109,11 @@ module subroutine plastic_phenopowerlaw_init
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config%getFloat('c/a',defaultVal=0.0_pReal))
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if(trim(config%getString('lattice_structure')) == 'bcc') then
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prm%nonSchmidCoeff = config%getFloats('nonschmid_coefficients',&
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defaultVal = emptyRealArray)
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prm%nonSchmid_pos = lattice_nonSchmidMatrix(N_sl,prm%nonSchmidCoeff,+1)
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prm%nonSchmid_neg = lattice_nonSchmidMatrix(N_sl,prm%nonSchmidCoeff,-1)
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a = config%getFloats('nonschmid_coefficients',defaultVal = emptyRealArray)
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if(size(a) > 0) prm%nonSchmidActive = .true.
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prm%nonSchmid_pos = lattice_nonSchmidMatrix(N_sl,a,+1)
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prm%nonSchmid_neg = lattice_nonSchmidMatrix(N_sl,a,-1)
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else
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allocate(prm%nonSchmidCoeff(0))
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prm%nonSchmid_pos = prm%P_sl
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prm%nonSchmid_neg = prm%P_sl
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endif
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@ -126,7 +121,7 @@ module subroutine plastic_phenopowerlaw_init
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config%getFloats('interaction_slipslip'), &
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config%getString('lattice_structure'))
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prm%xi_slip_0 = config%getFloats('tau0_slip', requiredSize=size(N_sl))
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xi_slip_0 = config%getFloats('tau0_slip', requiredSize=size(N_sl))
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prm%xi_slip_sat = config%getFloats('tausat_slip', requiredSize=size(N_sl))
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prm%H_int = config%getFloats('h_int', requiredSize=size(N_sl), &
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defaultVal=[(0.0_pReal,i=1,size(N_sl))])
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@ -137,7 +132,7 @@ module subroutine plastic_phenopowerlaw_init
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prm%h0_SlipSlip = config%getFloat('h0_slipslip')
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! expand: family => system
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prm%xi_slip_0 = math_expand(prm%xi_slip_0, N_sl)
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xi_slip_0 = math_expand(xi_slip_0, N_sl)
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prm%xi_slip_sat = math_expand(prm%xi_slip_sat,N_sl)
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prm%H_int = math_expand(prm%H_int, N_sl)
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@ -145,11 +140,13 @@ module subroutine plastic_phenopowerlaw_init
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if ( prm%gdot0_slip <= 0.0_pReal) extmsg = trim(extmsg)//' gdot0_slip'
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if ( prm%a_slip <= 0.0_pReal) extmsg = trim(extmsg)//' a_slip'
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if ( prm%n_slip <= 0.0_pReal) extmsg = trim(extmsg)//' n_slip'
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if (any(prm%xi_slip_0 <= 0.0_pReal)) extmsg = trim(extmsg)//' xi_slip_0'
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if (any(xi_slip_0 <= 0.0_pReal)) extmsg = trim(extmsg)//' xi_slip_0'
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if (any(prm%xi_slip_sat <= 0.0_pReal)) extmsg = trim(extmsg)//' xi_slip_sat'
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else slipActive
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xi_slip_0 = emptyRealArray
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allocate(prm%xi_slip_sat,prm%H_int,source=emptyRealArray)
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allocate(prm%interaction_SlipSlip(0,0))
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allocate(prm%xi_slip_0(0))
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endif slipActive
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!--------------------------------------------------------------------------------------------------
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@ -165,23 +162,28 @@ module subroutine plastic_phenopowerlaw_init
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prm%gamma_twin_char = lattice_characteristicShear_twin(N_tw,config%getString('lattice_structure'),&
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config%getFloat('c/a'))
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prm%xi_twin_0 = config%getFloats('tau0_twin',requiredSize=size(N_tw))
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xi_twin_0 = config%getFloats('tau0_twin',requiredSize=size(N_tw))
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prm%c_1 = config%getFloat('twin_c',defaultVal=0.0_pReal)
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prm%c_2 = config%getFloat('twin_b',defaultVal=1.0_pReal)
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prm%c_3 = config%getFloat('twin_e',defaultVal=0.0_pReal)
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prm%c_4 = config%getFloat('twin_d',defaultVal=0.0_pReal)
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prm%gdot0_twin = config%getFloat('gdot0_twin')
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prm%n_twin = config%getFloat('n_twin')
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prm%spr = config%getFloat('s_pr')
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prm%h0_TwinTwin = config%getFloat('h0_twintwin')
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! expand: family => system
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prm%xi_twin_0 = math_expand(prm%xi_twin_0, N_tw)
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xi_twin_0 = math_expand(xi_twin_0,N_tw)
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! sanity checks
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if (prm%gdot0_twin <= 0.0_pReal) extmsg = trim(extmsg)//' gdot0_twin'
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if (prm%n_twin <= 0.0_pReal) extmsg = trim(extmsg)//' n_twin'
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else twinActive
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xi_twin_0 = emptyRealArray
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allocate(prm%gamma_twin_char,source=emptyRealArray)
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allocate(prm%interaction_TwinTwin(0,0))
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allocate(prm%xi_twin_0(0))
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allocate(prm%gamma_twin_char(0))
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endif twinActive
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!--------------------------------------------------------------------------------------------------
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@ -218,7 +220,7 @@ module subroutine plastic_phenopowerlaw_init
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startIndex = 1
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endIndex = prm%sum_N_sl
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stt%xi_slip => plasticState(p)%state (startIndex:endIndex,:)
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stt%xi_slip = spread(prm%xi_slip_0, 2, NipcMyPhase)
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stt%xi_slip = spread(xi_slip_0, 2, NipcMyPhase)
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dot%xi_slip => plasticState(p)%dotState(startIndex:endIndex,:)
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||||
plasticState(p)%atol(startIndex:endIndex) = config%getFloat('atol_xi',defaultVal=1.0_pReal)
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if(any(plasticState(p)%atol(startIndex:endIndex) < 0.0_pReal)) extmsg = trim(extmsg)//' atol_xi'
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||||
|
|
@ -226,7 +228,7 @@ module subroutine plastic_phenopowerlaw_init
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|||
startIndex = endIndex + 1
|
||||
endIndex = endIndex + prm%sum_N_tw
|
||||
stt%xi_twin => plasticState(p)%state (startIndex:endIndex,:)
|
||||
stt%xi_twin = spread(prm%xi_twin_0, 2, NipcMyPhase)
|
||||
stt%xi_twin = spread(xi_twin_0, 2, NipcMyPhase)
|
||||
dot%xi_twin => plasticState(p)%dotState(startIndex:endIndex,:)
|
||||
plasticState(p)%atol(startIndex:endIndex) = config%getFloat('atol_xi',defaultVal=1.0_pReal)
|
||||
if(any(plasticState(p)%atol(startIndex:endIndex) < 0.0_pReal)) extmsg = trim(extmsg)//' atol_xi'
|
||||
|
|
@ -431,20 +433,17 @@ pure subroutine kinetics_slip(Mp,instance,of, &
|
|||
tau_slip_pos, &
|
||||
tau_slip_neg
|
||||
integer :: i
|
||||
logical :: nonSchmidActive
|
||||
|
||||
associate(prm => param(instance), stt => state(instance))
|
||||
|
||||
nonSchmidActive = size(prm%nonSchmidCoeff) > 0
|
||||
|
||||
do i = 1, prm%sum_N_sl
|
||||
tau_slip_pos(i) = math_mul33xx33(Mp,prm%nonSchmid_pos(1:3,1:3,i))
|
||||
tau_slip_neg(i) = merge(math_mul33xx33(Mp,prm%nonSchmid_neg(1:3,1:3,i)), &
|
||||
0.0_pReal, nonSchmidActive)
|
||||
0.0_pReal, prm%nonSchmidActive)
|
||||
enddo
|
||||
|
||||
where(dNeq0(tau_slip_pos))
|
||||
gdot_slip_pos = prm%gdot0_slip * merge(0.5_pReal,1.0_pReal, nonSchmidActive) & ! 1/2 if non-Schmid active
|
||||
gdot_slip_pos = prm%gdot0_slip * merge(0.5_pReal,1.0_pReal, prm%nonSchmidActive) & ! 1/2 if non-Schmid active
|
||||
* sign(abs(tau_slip_pos/stt%xi_slip(:,of))**prm%n_slip, tau_slip_pos)
|
||||
else where
|
||||
gdot_slip_pos = 0.0_pReal
|
||||
|
|
|
|||
Loading…
Reference in New Issue