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fixed cut back issue with Marc. Necessity to introduce compMode 7 to capture tangent restoration at lovl=4 call.

This commit is contained in:
Philip Eisenlohr 2009-10-17 09:25:36 +00:00
parent 974116808b
commit 992077e88e
2 changed files with 11 additions and 10 deletions
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3
code/CPFEM.f90
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@ -297,7 +297,8 @@ subroutine CPFEM_general(mode, ffn, ffn1, Temperature, dt, element, IP, cauchySt
CPFEM_calc_done = .false.
! --+>> RECYCLING OF FORMER RESULTS (MARC SPECIALTY) <<+--
case (6)
case (6,7)
if (mode == 7) CPFEM_dcsde = CPFEM_dcsde_knownGood ! --+>> RESTORE CONSISTENT JACOBIAN FROM FORMER CONVERGED INC
! do nothing
end select

18
code/mpie_cpfem_marc.f90
View File

@ -190,11 +190,15 @@ subroutine hypela2(&
computationMode = 2 ! calc + init
!$OMP CRITICAL (write2out)
write (6,'(i6,x,i2,x,a)') n(1),nn,'first call special case..!'; call flush(6)
write (6,'(a,x,i6,x,i2)') '<< hypela2 >> first call special case..!',n(1),nn; call flush(6)
!$OMP END CRITICAL (write2out)
else if (lovl == 4) then ! Marc requires stiffness in separate call
computationMode = 6 ! --> just return known value
if ( timinc < theDelta ) then ! first after cutback
computationMode = 7 ! --> restore tangent and return
else
computationMode = 6 ! --> just return known value
endif
else
cp_en = mesh_FEasCP('elem',n(1))
if (theTime < cptim .or. theInc /= inc) then ! reached convergence
@ -203,17 +207,16 @@ subroutine hypela2(&
terminallyIll = .false.
cycleCounter = 0
!$OMP CRITICAL (write2out)
write (6,'(i6,x,i2,x,a)') n(1),nn,'lastIncConverged + outdated'; call flush(6)
write (6,'(i6,x,i2,x,a)') n(1),nn,'<< hypela2 >> lastIncConverged + outdated'; call flush(6)
!$OMP END CRITICAL (write2out)
endif
if ( timinc < theDelta ) then ! cutBack
calcMode = .true. ! pretend last step was calculation
cutBack = .true.
terminallyIll = .false.
cycleCounter = 0
!$OMP CRITICAL (write2out)
write(6,'(i6,x,i2,x,a)') n(1),nn,'cutback detected..!'; call flush(6)
write(6,'(i6,x,i2,x,a)') n(1),nn,'<< hypela2 >> cutback detected..!'; call flush(6)
!$OMP END CRITICAL (write2out)
endif
@ -232,13 +235,10 @@ subroutine hypela2(&
computationMode = 2 ! plain calc
endif
else ! now collect
if ( lastMode .ne. calcMode(nn,cp_en) ) call debug_info() ! first after ping pong reports debugging
if ( lastMode /= calcMode(nn,cp_en) ) call debug_info() ! first after ping pong reports debugging
if ( lastIncConverged ) then
lastIncConverged = .false.
computationMode = 4 ! collect and backup Jacobian after convergence
elseif ( cutBack ) then
cutBack = .false.
computationMode = 5 ! collect and restore Jacobian after cutback
else
computationMode = 3 ! plain collect
endif