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DAMASK_EICMD
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Added use of sample_Gauss, sample_Fiber, Sample_Radom

This commit is contained in:
Luc Hantcherli 2007-03-29 11:13:40 +00:00
parent 5f9b57b952
commit c3ab698649
1 changed files with 28 additions and 35 deletions
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59
trunk/constitutive.f90
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@ -162,7 +162,8 @@ data constitutive_sd(:,12,3)/ 1, 1, 0/ ; data constitutive_sn(:,12,3)/ 1,-1, 1/
!* Slip-slip interactions matrices
!* (defined for the moment as crystal structure property and not as material property)
!* (may be changed in the future)
real(pReal), dimension(constitutive_MaxMaxNslipOfStructure,constitutive_MaxMaxNslipOfStructure,constitutive_MaxCrystalStructure) :: constitutive_HardeningMatrix
real(pReal), dimension(constitutive_MaxMaxNslipOfStructure,constitutive_MaxMaxNslipOfStructure,&
constitutive_MaxCrystalStructure) :: constitutive_HardeningMatrix
real(pReal), parameter :: constitutive_LatentHardening=1.4_pReal
!*************************************
@ -206,9 +207,7 @@ integer(pInt),dimension(:) , allocatable :: texture_NFiber
integer(pInt),dimension(:) , allocatable :: texture_NRandom
real(pReal), dimension(:,:,:) , allocatable :: texture_Gauss
real(pReal), dimension(:,:,:) , allocatable :: texture_Fiber
real(pReal), dimension(:,:,:) , allocatable :: constitutive_phi1
real(pReal), dimension(:,:,:) , allocatable :: constitutive_phi
real(pReal), dimension(:,:,:) , allocatable :: constitutive_phi2
real(pReal), dimension(:,:,:,:), allocatable :: constitutive_EulerAngles
!************************************
!* State variables *
@ -285,7 +284,8 @@ do l=1,3
constitutive_Sslip(i,j,k,l)=constitutive_sd(i,k,l)*constitutive_sn(j,k,l)
endforall
!* Normalization of Schmid matrix
invNorm=dsqrt(1.0_pReal/((constitutive_sn(1,k,l)**2+constitutive_sn(2,k,l)**2+constitutive_sn(3,k,l)**2)*(constitutive_sd(1,k,l)**2+constitutive_sd(2,k,l)**2+constitutive_sd(3,k,l)**2)))
invNorm=dsqrt(1.0_pReal/((constitutive_sn(1,k,l)**2+constitutive_sn(2,k,l)**2+constitutive_sn(3,k,l)**2)*&
(constitutive_sd(1,k,l)**2+constitutive_sd(2,k,l)**2+constitutive_sd(3,k,l)**2)))
constitutive_Sslip(:,:,k,l)=constitutive_Sslip(:,:,k,l)*invNorm
!* Vectorization of normalized Schmid matrix
!* according MARC component order 11,22,33,12,23,13
@ -787,12 +787,8 @@ allocate(constitutive_MatVolFrac(constitutive_maxNgrains,mesh_maxNips,mesh_NcpEl
constitutive_MatVolFrac=0.0_pReal
allocate(constitutive_TexVolFrac(constitutive_maxNgrains,mesh_maxNips,mesh_NcpElems))
constitutive_TexVolFrac=0.0_pReal
allocate(constitutive_phi1(constitutive_maxNgrains,mesh_maxNips,mesh_NcpElems))
constitutive_phi1=0.0_pReal
allocate(constitutive_phi(constitutive_maxNgrains,mesh_maxNips,mesh_NcpElems))
constitutive_phi=0.0_pReal
allocate(constitutive_phi2(constitutive_maxNgrains,mesh_maxNips,mesh_NcpElems))
constitutive_phi2=0.0_pReal
allocate(constitutive_EulerAngles(3,constitutive_maxNgrains,mesh_maxNips,mesh_NcpElems))
constitutive_EulerAngles=0.0_pReal
!* State variables
constitutive_maxNstatevars=material_maxNslip
allocate(constitutive_Nstatevars(constitutive_maxNgrains,mesh_maxNips,mesh_NcpElems))
@ -822,14 +818,8 @@ do i=1,mesh_NcpElems
constitutive_phi1(l,j,i)=texture_Gauss(1,k,texID)
constitutive_phi(l,j,i)=texture_Gauss(2,k,texID)
constitutive_phi2(l,j,i)=texture_Gauss(3,k,texID)
! if (constitutive_phi1(l,j,i)==400*inRad) then
! call math_halton_ori()
! else
! call math_gauss()
! endif
! constitutive_phi1(l,j,i)=texture_Gauss(1,k,mesh_element(4,i))
! constitutive_phi(l,j,i)=texture_Gauss(2,k,mesh_element(4,i))
! constitutive_phi2(l,j,i)=texture_Gauss(3,k,mesh_element(4,i))
!* Use of sample_Gauss
constitutive_EulerAngles(:,l,j,i)=sample_Gauss(texture_Gauss(1:3,k,texID),texture_Gauss(4.k,texID))
enddo
enddo
!* Fiber component
@ -839,9 +829,8 @@ do i=1,mesh_NcpElems
constitutive_texID(l,j,i)=texID
constitutive_MatVolFrac(l,j,i)=1.0_pReal
constitutive_TexVolFrac(l,j,i)=texture_Fiber(6,k,texID)/multiplicity
! constitutive_phi1(l,j,i)=texture_Fiber(1,k,mesh_element(4,i))
! constitutive_phi(l,j,i)=texture_Fiber(2,k,mesh_element(4,i))
! constitutive_phi2(l,j,i)=texture_Fiber(3,k,mesh_element(4,i))
!* Use of sample_Fiber
constitutive_EulerAngles(:,l,j,i)=sample_Fiber(texture_Fiber(1:4,k,texID),texture_Fiber(5,k,texID))
enddo
enddo
!* Random component
@ -851,14 +840,12 @@ do i=1,mesh_NcpElems
constitutive_texID(l,j,i)=texID
constitutive_MatVolFrac(l,j,i)=1.0_pReal
constitutive_TexVolFrac(l,j,i)=(1.0_pReal-texture_Gauss(5,k,texID)-texture_Fiber(6,k,texID))/multiplicity
! constitutive_phi1(l,j,i)=texture_Fiber(1,k,mesh_element(4,i))
! constitutive_phi(l,j,i)=texture_Fiber(2,k,mesh_element(4,i))
! constitutive_phi2(l,j,i)=texture_Fiber(3,k,mesh_element(4,i))
enddo
constitutive_EulerAngles(:,l,j,i)=sample_Random()
enddo
enddo
enddo ! End of ip
endif
enddo
enddo ! End of cp_element
!* Initialization of state variables
@ -948,16 +935,19 @@ Tstar_v(6)=Tstar_v_m(6)/dsqrt(2.0_pReal)
Lp=0.0_pReal
do i=1,material_Nslip(matID)
tau_slip(i)=dot_product(Tstar_v,constitutive_Sslip_v(:,i,material_CrystalStructure(matID)))
gdot_slip(i)=material_gdot0_slip(matID)*(abs(tau_slip(i))/constitutive_state_new(i,ipc,ip,el))**material_n_slip(matID)*sign(1.0_pReal,tau_slip(i))
gdot_slip(i)=material_gdot0_slip(matID)*(abs(tau_slip(i))/constitutive_state_new(i,ipc,ip,el))**&
material_n_slip(matID)*sign(1.0_pReal,tau_slip(i))
Lp=Lp+gdot_slip(i)*constitutive_Sslip(:,:,i,material_CrystalStructure(matID))
enddo
!* Calculation of the tangent of Lp
dLp_dTstar=0.0_pReal
do i=1,material_Nslip(matID)
dgdot_dtauslip(i)=material_gdot0_slip(matID)*(abs(tau_slip(i))/constitutive_state_new(i,ipc,ip,el))**(material_n_slip(matID)-1.0_pReal)*material_n_slip(matID)/constitutive_state_new(i,ipc,ip,el)
dgdot_dtauslip(i)=material_gdot0_slip(matID)*(abs(tau_slip(i))/constitutive_state_new(i,ipc,ip,el))**&
(material_n_slip(matID)-1.0_pReal)*material_n_slip(matID)/constitutive_state_new(i,ipc,ip,el)
forall (k=1:3,l=1:3,m=1:3,n=1:3)
dLp_dTstar(k,l,m,n)=dLp_dTstar(k,l,m,n)+constitutive_Sslip(k,l,i,material_CrystalStructure(matID))*constitutive_Sslip(m,n,i,material_CrystalStructure(matID))*dgdot_dtauslip(i)
dLp_dTstar(k,l,m,n)=dLp_dTstar(k,l,m,n)+constitutive_Sslip(k,l,i,material_CrystalStructure(matID))*&
constitutive_Sslip(m,n,i,material_CrystalStructure(matID))*dgdot_dtauslip(i)
endforall
enddo
@ -1000,12 +990,15 @@ Tstar_v(6)=Tstar_v_m(6)/dsqrt(2.0_pReal)
!* Self-Hardening of each system
do i=1,constitutive_Nstatevars(ipc,ip,el)
tau_slip(i)=dot_product(Tstar_v,constitutive_Sslip_v(:,i,material_CrystalStructure(matID)))
gdot_slip(i)=material_gdot0_slip(matID)*(abs(tau_slip(i))/constitutive_state_new(i,ipc,ip,el))**material_n_slip(matID)*sign(1.0_pReal,tau_slip(i))
self_hardening(i)=material_h0(matID)*(1.0_pReal-constitutive_state_new(i,ipc,ip,el)/material_s_sat(matID))**material_w0(matID)*abs(gdot_slip(i))
gdot_slip(i)=material_gdot0_slip(matID)*(abs(tau_slip(i))/constitutive_state_new(i,ipc,ip,el))**&
material_n_slip(matID)*sign(1.0_pReal,tau_slip(i))
self_hardening(i)=material_h0(matID)*(1.0_pReal-constitutive_state_new(i,ipc,ip,el)/&
material_s_sat(matID))**material_w0(matID)*abs(gdot_slip(i))
enddo
!* Hardening for all systems
constitutive_DotState=matmul(constitutive_HardeningMatrix(1:material_Nslip(matID),1:material_Nslip(matID),material_CrystalStructure(matID)),self_hardening)
constitutive_DotState=matmul(constitutive_HardeningMatrix(1:material_Nslip(matID),1:material_Nslip(matID),&
material_CrystalStructure(matID)),self_hardening)
return
end function