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substituted matrix inversion to solve equation by direct solution routine from LAPACK

This commit is contained in:
Martin Diehl 2012-10-31 09:56:26 +00:00
parent c0b83bd554
commit 086fe138b1
1 changed files with 13 additions and 14 deletions
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27
code/crystallite.f90
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@ -433,7 +433,7 @@ if (iand(debug_level(debug_crystallite), debug_levelBasic) /= 0_pInt) then
write(6,'(a35,1x,7(i8,1x))') 'crystallite_sizePostResult: ', shape(crystallite_sizePostResult)
write(6,*)
write(6,*) 'Number of nonlocal grains: ',count(.not. crystallite_localPlasticity)
call flush(6)
flush(6)
!$OMP END CRITICAL (write2out)
endif
@ -2749,7 +2749,9 @@ use math, only: math_mul33x33, &
math_Mandel66to3333, &
math_Mandel6to33, &
math_Mandel33to6, &
math_Plain3333to99
math_Plain3333to99, &
math_Plain33to9, &
math_Plain9to33
implicit none
@ -2787,7 +2789,7 @@ real(pReal), dimension(9,9) :: dLp_dT_constitutive, &
dT_dFe_constitutive, & ! partial derivative of 2nd Piola-Kirchhoff stress calculated by constitutive law
dFe_dLp, & ! partial derivative of elastic deformation gradient
dR_dLp, & ! partial derivative of residuum (Jacobian for NEwton-Raphson scheme)
inv_dR_dLp ! inverse of dRdLp
dR_dLp2 ! working copy of dRdLp
real(pReal), dimension(3,3,3,3):: dT_dFe3333, & ! partial derivative of 2nd Piola-Kirchhoff stress
dFe_dLp3333 ! partial derivative of elastic deformation gradient
real(pReal) p_hydro, & ! volumetric part of 2nd Piola-Kirchhoff Stress
@ -2796,10 +2798,11 @@ real(pReal) p_hydro, &
steplength0, &
steplength, &
steplength_max, &
dt, & ! time increment
dt, & ! time increment
aTol
logical error ! flag indicating an error
integer(pInt) NiterationStress, & ! number of stress integrations
ierr, & ! error indicator for LAPACK
k, &
l, &
m, &
@ -3019,15 +3022,14 @@ LpLoop: do
dT_dFe_constitutive = math_Plain3333to99(dT_dFe3333)
dR_dLp = math_identity2nd(9_pInt) - &
math_mul99x99(dLp_dT_constitutive, math_mul99x99(dT_dFe_constitutive , dFe_dLp))
inv_dR_dLp = dR_dLp ! will be changed in first call to LAPACK
dR_dLp2 = dR_dLp ! will be overwritten in first call to LAPACK routine
work = math_plain33to9(residuum)
#if(FLOAT==8)
call dgetrf(9,9,inv_dR_dLp,9,ipiv,error) ! invert dR/dLp --> dLp/dR
call dgetri(9,inv_dR_dLp,9,ipiv,work,9,error)
call dgesv(9,1,dR_dLp2,9,ipiv,work,9,ierr) ! solve dR/dLp * delta Lp = -res for dR/dLp
#elif(FLOAT==4)
call sgetrf(9,9,inv_dR_dLp,9,ipiv,error) ! invert dR/dLp --> dLp/dR
call sgetri(9,inv_dR_dLp,9,ipiv,work,9,error)
call sgesv(9,1,dR_dLp2,9,ipiv,work,9,ierr) ! solve dR/dLp * delta Lp = -res for dR/dLp
#endif
if (error) then
if (ierr /= 0_pInt) then
#ifndef _OPENMP
if (iand(debug_level(debug_crystallite), debug_levelBasic) /= 0_pInt) then
write(6,'(a,i8,1x,i2,1x,i3,a,i3)') '<< CRYST >> integrateStress failed on dR/dLp inversion at el ip g ',e,i,g
@ -3048,11 +3050,8 @@ LpLoop: do
#endif
return
endif
deltaLp = 0.0_pReal
do k=1_pInt,3_pInt; do l=1_pInt,3_pInt; do m=1_pInt,3_pInt; do n=1_pInt,3_pInt
deltaLp(k,l) = deltaLp(k,l) - inv_dR_dLp(3_pInt*(k-1_pInt)+l,3_pInt*(m-1_pInt)+n) * residuum(m,n)
enddo; enddo; enddo; enddo
deltaLp = - math_plain9to33(work)
gradientR = 0.0_pReal
do k=1_pInt,3_pInt; do l=1_pInt,3_pInt; do m=1_pInt,3_pInt; do n=1_pInt,3_pInt
gradientR(k,l) = gradientR(k,l) + dR_dLp(3*(k-1)+l,3_pInt*(m-1_pInt)+n) * residuum(m,n)