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incrementalDriver.f
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incrementalDriver.f
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! Copyright (C) 2007 ... 2017 Andrzej Niemunis
!
! incrementalDriver is free software; you can redistribute it and/or modify
! it under the terms of the GNU General Public License as published by
! the Free Software Foundation; either version 2 of the License, or
! (at your option) any later version.
!
! incrementalDriver is distributed in the hope that it will be useful,
! but WITHOUT ANY WARRANTY; without even the implied warranty of
! MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
! GNU General Public License for more details.
! You should have received a copy of the GNU General Public License
! along with this program; if not, write to the Free Software
! Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,USA.
! August 2007: utility routines added
! Februar 2008 : *Repetition repaired again
! March 2008 : *ObeyRestrictions added
! April 2008 : command line options: test= , param= , ini= , out= , verbose= added
! November 2008: warn if divergent equil. iter. $\| u\_dstress \|$ too large
! February 2009: *ObeyRestrictions works with *Repetitions
! August 2010 increases output precision + keyword(3) error interception
! December 2015: fragments of niemunis_tools_lt unsymmetric_module integrated with incrementalDriver
! January 2016 if nstatev = 0 no statev( ) values will be read in but we set nstatv= 1 and statev(1)= 0.0d0
! October 2016 exit from step on inequality condition, import step loading data from a file, write every n-th state only
! November 2016 alignment of stress
! Jan 2017 exit on inequality corrected twice
! June 2017 undo changes in stress and state from ZERO call of umat (just for jacobian, with zero dstran and zero dtime )
! Dec 2017 parser disregards comments beyond #
!> Main program that_calls_umat ( performs calculation writing to output.txt).
PROGRAM that_calls_umat ! written by A.Niemunis 2007 - 2017
implicit none
character*80 cmname,rebarn
integer ndi,nshr,ntens,nstatv,nprops,ncrds
integer noel,npt,layer,kspt,lrebar,kinc,i
real(8), allocatable, dimension(:):: InterpolatedStrainInc
real(8), allocatable, dimension(:,:):: StrainInc
real(8),parameter,dimension(3,3):: delta = &
reshape((/1,0,0,0,1,0,0,0,1/),(/3,3/))
parameter(ntens=6,ndi=3,nshr=3,ncrds=3) ! same ntens as in SOLVER
parameter( noel=1 ,npt=1,layer=1,kspt=1,lrebar=1)
parameter( rebarn ='xxx')
real*8 dtime,temp,dtemp,sse,spd,scd,rpl,drpldt,pnewdt,celent
real*8 stress(ntens), &
ddsdde(ntens,ntens),ddsddt(ntens),drplde(ntens), &
stran(ntens),dstran(ntens),time(2),predef(1),dpred(1), &
coords(ncrds),drot(3,3),dfgrd0(3,3),dfgrd1(3,3)
character(len=1) :: aChar ! AN 2016
character(len=40):: keywords(10), outputfilename, &
parametersfilename, &
initialconditionsfilename, testfilename, outputfilename1, &
exitCond, ImportFileName,mString, keyword2, & ! AN 2016
aShortLine, leftLine, rightLine
character(len=260) :: inputline(6), aLine, heading
character(len=520) :: hugeLine
character(len=10):: timeHead(2), stranHead(6), stressHead(6) ! AN 2016
character(len=15), allocatable :: statevHead(:) ! AN 2016
logical :: verbose
logical :: EXITNOW, existCond,okSplit ! AN 2016
real(8), dimension(6,6) :: cMt , cMe
real(8), dimension(6) :: mb, mbinc
integer :: nImport, mImport, columnsInFile(7),every,ievery ! AN 2016
real(8) :: importFactor(7)
real(8),dimension(20) :: oldState, newState,dState
real(8), allocatable :: props(:), statev(:), r_statev(:)
real(8),dimension(3,3):: Qb33,eps33,T33
integer:: ifstress(ntens), maxiter, ninc,kiter, ikeyword, &
iRepetition, nRepetitions, kStep,iStep,nSteps,ntens_in
real(8):: r_stress(ntens),a_dstress(ntens),u_dstress(ntens), &
stress_Rosc(ntens),r_stress_Rosc(ntens), &
ddstress(ntens), c_dstran(ntens) , &
deltaLoadCirc(6),phase0(6),deltaLoad(9), &
dstran_Cart(6), ddsdde_bar(6,6), deltaTime
real(8),parameter :: sq3=1.7320508075688772935d0, &
sq6=2.4494897427831780982d0, &
sq2=1.4142135623730950488d0, &
Pi =3.1415926535897932385d0
real(8),parameter :: &
i3=0.3333333333333333333d0, &
i2=0.5d0, &
isq2=1/sq2, &
isq3=1.0d0/sq3, &
isq6=1.0d0/sq6
real(8), parameter,dimension(1:6,1:6)::MRoscI=reshape & ! M for isomorphic Roscoe variables P,Q,Z,....
((/-isq3,-2.0d0*isq6,0.0d0, 0.0d0, 0.0d0, 0.0d0, &
-isq3, isq6, -isq2, 0.0d0, 0.0d0, 0.0d0, &
-isq3, isq6, isq2, 0.0d0, 0.0d0, 0.0d0, &
0.0d0, 0.0d0, 0.0d0, 1.0d0, 0.0d0, 0.0d0, &
0.0d0, 0.0d0, 0.0d0, 0.0d0, 1.0d0, 0.0d0, &
0.0d0, 0.0d0, 0.0d0, 0.0d0, 0.0d0, 1.0d0 &
/),(/6,6/))
real(8), parameter,dimension(1:6,1:6)::MRoscImT=MRoscI ! latest $\cM^{-T}$ (is orthogonal)
real(8), parameter,dimension(1:6,1:6)::MRendul=reshape & ! M for isomorphic Rendulic sigma_11 = -T_11, sigma_22 = -(T_22 + T_33) / sqrt(2) Z, ....
((/ -1.0d0, 0.0d0, 0.0d0, 0.0d0,0.0d0,0.0d0, &
0.0d0, -isq2, -isq2, 0.0d0,0.0d0,0.0d0, &
0.0d0, -isq2, isq2, 0.0d0,0.0d0,0.0d0, &
0.0d0, 0.0d0, 0.0d0, 1.0d0,0.0d0,0.0d0, &
0.0d0, 0.0d0, 0.0d0, 0.0d0,1.0d0,0.0d0, &
0.0d0, 0.0d0, 0.0d0, 0.0d0,0.0d0,1.0d0 &
/),(/6,6/))
real(8), parameter,dimension(1:6,1:6)::MRendulmT=MRendul ! latest $\cM^{-T}$ (is orthogonal)
real(8), parameter,dimension(1:6,1:6)::MRosc=reshape & ! M for Roscoe variables p,q,z,....
((/-i3,-1.0d0, 0.0d0, 0.0d0,0.0d0,0.0d0, &
-i3, i2, -1.0d0, 0.0d0,0.0d0,0.0d0, &
-i3,i2, 1.0d0, 0.0d0,0.0d0,0.0d0, &
0.0d0, 0.0d0,0.0d0, 1.0d0,0.0d0,0.0d0, &
0.0d0, 0.0d0, 0.0d0, 0.0d0,1.0d0,0.0d0, &
0.0d0, 0.0d0, 0.0d0, 0.0d0,0.0d0,1.0d0 &
/),(/6,6/))
real(8), parameter,dimension(1:6,1:6)::MRoscmT=reshape & ! latest $\cM^{-T}$ (is not orthogonal)
((/-1.0d0, -2.0d0*i3, 0.0d0, 0.0d0, 0.0d0,0.0d0, &
-1.0d0, i3, -i2, 0.0d0,0.0d0,0.0d0, &
-1.0d0, i3, i2, 0.0d0,0.0d0,0.0d0, &
0.0d0, 0.0d0, 0.0d0, 1.0d0, 0.0d0, 0.0d0, &
0.0d0, 0.0d0, 0.0d0, 0.0d0, 1.0d0, 0.0d0, &
0.0d0, 0.0d0, 0.0d0, 0.0d0, 0.0d0, 1.0d0 &
/),(/6,6/))
real(8), parameter,dimension(1:6,1:6)::MCart=reshape & ! M for Cartesian coords $T_11, T_22, T_33, T_12,.....$
((/ 1.0d0, 0.0d0, 0.0d0, 0.0d0, 0.0d0, 0.0d0, &
0.0d0, 1.0d0, 0.0d0, 0.0d0, 0.0d0, 0.0d0, &
0.0d0, 0.0d0, 1.0d0, 0.0d0, 0.0d0, 0.0d0, &
0.0d0, 0.0d0, 0.0d0, 1.0d0, 0.0d0, 0.0d0, &
0.0d0, 0.0d0, 0.0d0, 0.0d0, 1.0d0, 0.0d0, &
0.0d0, 0.0d0, 0.0d0, 0.0d0, 0.0d0, 1.0d0 &
/),(/6,6/))
real(8), parameter,dimension(1:6,1:6)::MCartmT=MCart ! latest $\cM^{-T}$ (is orthogonal)
real(8),dimension(1:6,1:6)::M,MmT ! currrent $\cM$ and $\cM^{-T}$ for a given iStep
real(8) :: aux1,aux2
type descriptionOfStep
integer:: ninc,maxiter, ifstress(ntens),columnsInFile(7),mImport ! AN 2016
real(8) :: deltaLoadCirc(ntens),phase0(ntens),deltaLoad(9), &
dfgrd0(3,3), dfgrd1(3,3),deltaTime, importFactor(7)
character(40) :: keyword2, keyword3, exitCond,ImportFileName ! AN 2016
real(8),dimension(1:6,1:6) :: cMt, cMe
real(8),dimension(1:6) :: mbinc
logical::existCond ! AN 2016
end type descriptionOfStep
type StressAlignment
logical:: active
character(len=40) :: ImportFileName
integer:: kblank,nrec,kReversal, ncol
integer,dimension(100) :: Reversal
integer,dimension(6):: isig
real(8),dimension(6) :: sigFac
end type StressAlignment
type(StressAlignment) :: align
type(descriptionOfStep) :: ofStep(30) ! stores descriptions of up to 30 steps which are repeated
! [1] read the command-line parameters to set the file names *************
continue
parametersfilename = 'parameters.inp'
initialconditionsfilename = 'initialconditions.inp'
testfilename = 'test.inp'
outputfilename = '--'
verbose = .true.
call get_command_line_arguments() ! command line can override the above file names
! [2] read the material parameters ************************************************
open(1,err=901,file=parametersfilename,status='old')
read(1,'(a)') cmname
i = index(cmname, '#')
if(i == 0) then
cmname = trim(cmname)
else
cmname = cmname(:i-1)
cmname = trim(cmname)
endif
read(1,*) nprops
allocate( props(nprops) )
do i=1,nprops
read(1,*) props(i)
enddo
close(1)
![3] read initial conditions and initialize everything **************************************
open(1,err=902,file=initialconditionsfilename,status='old')
read(1,*) ntens_in
stress(:) = 0.0d0
time(:) = 0.0d0
stran(:)=0.0d0
dtime = 0.0d0
do i=1,ntens_in
read(1,*) stress(i)
enddo
read(1,*) nstatv
if(nstatv >= 1) then
allocate(statev(nstatv), r_statev(nstatv), statevHead(nstatv)) ! AN 2016
statev(:) = 0.0d0
do i=1,nstatv
read(1,*,end=500) statev(i)
enddo
else
allocate( statev(1) , r_statev(1), statevHead(1) ) ! AN 2016 formal placeholder not really used
statev(:) = 0.0d0
nstatv = 1
endif
500 continue
close(1)
! ntens_in = 6
! nstatv = 300
! allocate( statev(nstatv) , r_statev(nstatv) )
! statev = 0.0d0
! call ParaelasticInitialCondition(statev) ! Loads two states into the stack
![4] read a piece from the loading path ***********************************************************
open(1,err=903,file=testfilename,status='old')
![4.1] read the outputfilename from test.inp, create/open this file and write the tablehead, heading(if any) and the first line = initial conditions
read(1,'(a)') aLine
i = index(aLine,'#')
if(i==0) then
outputfilename1=trim(aLine)
heading = '#'
else
outputfilename1=trim(aLine(:i-1))
heading = trim( aLine(i+1:) )
endif
if(outputfilename == '--') outputfilename = outputfilename1
open(2,err=904,file=outputfilename)
do i=1,2
write(timeHead(i),'(a,i1,a)') 'time(',i, ')'
enddo
do i=1,6
write( stranHead(i), '(a,i1,a)' ) 'stran(',i, ')'
write(stressHead(i), '(a,i1,a)' ) 'stress(',i, ')'
enddo
write(statevHead(1), '(a)') 'G'
write(statevHead(2), '(a)') 'K'
write(statevHead(3), '(a)') 'c'
write(statevHead(4), '(a)') 'phi'
write(statevHead(5), '(a)') 'beta'
write(statevHead(6), '(a)') 'yield'
write(statevHead(7), '(a)') 'RateXX'
write(statevHead(8), '(a)') 'RateYY'
write(statevHead(9), '(a)') 'RateZZ'
write(statevHead(10), '(a)') 'RateXY'
write(statevHead(11), '(a)') 'RateXZ'
write(statevHead(12), '(a)') 'RateYZ'
write(statevHead(13), '(a)') 'EpspXX'
write(statevHead(14), '(a)') 'EpspYY'
write(statevHead(15), '(a)') 'EpspZZ'
write(statevHead(16), '(a)') 'EpspXY'
write(statevHead(17), '(a)') 'EpspXZ'
write(statevHead(18), '(a)') 'EpspYZ'
write(statevHead(19), '(a)') 'Ni'
write(statevHead(20), '(a)') 'Sum_Rate'
write(statevHead(21), '(a)') 'Rn_max'
write(statevHead(22), '(a)') 'F0_last'
write(statevHead(23), '(a)') 'F0_max'
!do i=1,nstatv
!write(statevHead(i), '(a,i1,a)' ) 'statev(',i, ')' !Modify this for changing header names!!!!
!enddo
write(2,'(a14,500a20)') timeHead,stranHead,stressHead,statevHead
if(heading(1:1) /= '#') write(2,*) trim(heading)
write(2,'(500(g17.11,3h ))') time+(/dtime,dtime/), &
stran, stress, statev
![4.2] loop over keywords(1) unless keyword(1) = *Repetition it is copied to keyword(2) which is the true type of loading
kStep = 0 ! kStep = counter over all steps whereas iStep = counter over steps within a *Repetition
do 200 ikeyword=1,10000
read(1,'(a)',end=999) keywords(1)
keywords(1) = trim( keywords(1) )
if(keywords(1) == '*Repetition') then
read(1,*) nSteps, nRepetitions
else
nRepetitions=1
nSteps=1
keywords(2) = keywords(1)
endif
do 130 iRepetition = 1,nRepetitions
do 120 iStep = 1,nSteps
kStep = kStep + 1
if(iRepetition > 1) then ! recall the loading parameters of the repeated step read in during the first iRepetition
ninc = ofStep(istep)%ninc
maxiter = ofStep(istep)%maxiter
ifstress = ofStep(istep)%ifstress
deltaLoadCirc = ofStep(istep)%deltaLoadCirc
phase0 = ofStep(istep)%phase0
deltaLoad = ofStep(istep)%deltaLoad
dfgrd0 = ofStep(istep)%dfgrd0
dfgrd1 = ofStep(istep)%dfgrd1
deltaTime = ofStep(istep)%deltaTime
keywords(2) = ofStep(istep)%keyword2
keywords(3) = ofStep(istep)%keyword3
cMe = ofStep(istep)%cMe
cMt = ofStep(istep)%cMt
mbinc = ofStep(istep)%mbinc
exitCond = ofStep(istep)%exitCond ! AN 2016
existCond = ofStep(istep)%existCond ! AN 2016
ImportFileName = ofStep(istep)%ImportFileName ! AN 2016
mImport = ofStep(istep)%mImport ! AN 2016
columnsInFile = ofStep(istep)%columnsInFile ! AN 2016 7 integers with numbers of columns (or value = 0)
importFactor = ofStep(istep)%importFactor ! AN 2016 7 real factors to be multiplied with columns
goto 10 ! jump over reading, because reading of steps is performed only on the first loop, when iRepetition==1
endif
if(keywords(1) == '*Repetition') read(1,'(a)') keywords(2) ! = LinearLoad or CirculatingLoad ...
call splitaLine(keywords(2),'?', keywords(2),exitCond,existCond) ! AN 2016 look for exit condition in keywords(2)
keywords(2) = trim(keywords(2))
ifstress(:)=0 ! default strain control
deltaLoadCirc(:)=0.0d0 ! default zero step increment
phase0(:)=0.0d0 ! default no phase shift
deltaLoad(:) = 0.0d0
dfgrd0 = delta
dfgrd1 = delta
if(keywords(2) == '*DeformationGradient') then
! read(1,*) ninc, maxiter, deltaTime
call ReadStepCommons(1, ninc, maxiter,deltaTime, every) ! AN 2016
keywords(3) = '*Cartesian'
do i=1,9
read(1,*) deltaLoad(i) ! dload means total change in the whole step here
enddo
goto 10
endif
if (keywords(2) == '*CirculatingLoad') then
call ReadStepCommons(1, ninc, maxiter,deltaTime, every) ! AN 2016 read(1,*) ninc, maxiter, deltaTime
read(1,*) keywords(3) ! = Cartesian or Roscoe or RoscoeIsomorph or Rendulic
keywords(3) = trim(keywords(3))
do i=1,6
read(1,*) ifstress(i),deltaLoadCirc(i),phase0(i),deltaLoad(i) ! dload means amplitude here
enddo
goto 10
endif
if(keywords(2) == '*LinearLoad') then
call ReadStepCommons(1, ninc, maxiter,deltaTime, every) ! AN 2016 read(1,*) ninc, maxiter, deltaTime
read(1,'(a)') keywords(3)
do i=1,6
read(1,*) ifstress(i), deltaLoad(i) ! dload means total change in the whole step here
enddo
goto 10
endif
keyword2 = keywords(2)
if(keyword2(1:11) == '*ImportFile') then
keywords(2) = '*ImportFile'; keyword2 = keyword2(12:)
call splitaLine( keyword2,'|',ImportFileName, &
mString,okSplit)
if(.not.okSplit) stop 'missing | in line *ImportFile'
read(mString,*) mImport
call ReadStepCommons(1, ninc, maxiter,deltaTime, every) ! AN 2016 read(1,*) ninc, maxiter, deltaTime
read(1,'(a)') keywords(3)
columnsInFile(:) = 0; importFactor(:) = 1
do i=1,6
read(1,'(a)') aShortLine
call splitaLine(aShortLine,'*',leftLine,rightLine,okSplit )
read(leftLine,*) ifstress(i), columnsInFile(i)
if(okSplit) read(rightLine,*) ImportFactor(i)
! read(1,*) ifstress(i), columnsInFile(i) , ImportFactor(i) ! dload means total change in the whole step here
enddo
if(deltaTime <= 0) then
read(1,'(a)') aShortLine
call splitaLine(aShortLine,'*',leftLine,rightLine,okSplit)
read(leftLine,*) columnsInFile(7)
if(okSplit) read(rightLine,*) ImportFactor(7)
! read(1,*) columnsInFile(7), ImportFac(7)
endif !deltaTime
!**********************************************************
call readAlignment(align, ImportFileName )
!**********************************************************
goto 10
endif
if(keywords(2) == '*OedometricE1') then
keywords(2) = '*LinearLoad'
keywords(3) ='*Cartesian'
call ReadStepCommons(1, ninc, maxiter,deltaTime, every) ! AN 2016 read(1,*) ninc, maxiter, deltaTime
read(1,*) deltaLoad(1)
goto 10
endif
if(keywords(2) == '*OedometricS1') then
keywords(2) = '*LinearLoad'
keywords(3) ='*Cartesian'
call ReadStepCommons(1, ninc, maxiter,deltaTime, every) ! AN 2016 read(1,*) ninc, maxiter, deltaTime
ifstress(1) = 1
read(1,*) deltaLoad(1)
goto 10
endif
if(keywords(2) == '*TriaxialE1') then
keywords(2) = '*LinearLoad'
keywords(3) ='*Cartesian'
call ReadStepCommons(1, ninc, maxiter,deltaTime, every) ! AN 2016 read(1,*) ninc, maxiter, deltaTime
read(1,*) deltaLoad(1)
ifstress(2:3) = 1
goto 10
endif
if(keywords(2) == '*TriaxialS1') then
keywords(2) = '*LinearLoad'
keywords(3) ='*Cartesian'
call ReadStepCommons(1, ninc, maxiter,deltaTime, every) ! AN 2016 read(1,*) ninc, maxiter, deltaTime
read(1,*) deltaLoad(1)
ifstress(1:3) = 1
goto 10
endif
if(keywords(2) == '*TriaxialUEq') then
keywords(2) = '*LinearLoad'
call ReadStepCommons(1, ninc, maxiter,deltaTime, every) ! AN 2016 read(1,*) ninc, maxiter, deltaTime
keywords(3) ='*Roscoe'
read(1,*) deltaLoad(2) ! = deviatoric strain
goto 10
endif
if(keywords(2) == '*TriaxialUq') then
keywords(2) = '*LinearLoad'
keywords(3) ='*Roscoe'
call ReadStepCommons(1, ninc, maxiter,deltaTime, every) ! AN 2016 read(1,*) ninc, maxiter, deltaTime
read(1,*) deltaLoad(2) ! = deviatoric stress
ifstress(2) = 1
goto 10
endif
if(keywords(2) == '*PureRelaxation') then
keywords(2) = '*LinearLoad'
keywords(3) ='*Cartesian'
call ReadStepCommons(1, ninc, maxiter,deltaTime, every) ! AN 2016 read(1,*) ninc, maxiter, deltaTime
goto 10
endif
if(keywords(2) == '*PureCreep') then
keywords(2) = '*LinearLoad'
keywords(3) ='*Cartesian'
call ReadStepCommons(1, ninc, maxiter,deltaTime, every) ! AN 2016 read(1,*) ninc, maxiter, deltaTime
ifstress(:) = 1
goto 10
endif
if(keywords(2) == '*UndrainedCreep') then
keywords(2) = '*LinearLoad'
keywords(3) ='*Roscoe'
call ReadStepCommons(1, ninc, maxiter,deltaTime, every) ! AN 2016 read(1,*) ninc, maxiter, deltaTime
ifstress(2:6) = 1
goto 10
endif
if(keywords(2) == '*ObeyRestrictions') then ! ======================= *ObeyRestrictions ==================================
call ReadStepCommons(1, ninc, maxiter,deltaTime, every) ! AN 2016 read(1,*) ninc, maxiter, deltaTime
do i=1,6
read(1,'(a)') inputline(i) !=== a line of form ''-sd1 + sd2 + 3.0*sd3 = -10 ! a comment '' is expected
if(index(inputline(i),'=')== 0) stop 'restr without "=" '
enddo
call parser(inputline, cMt,cMe,mb )
mbinc = mb/ninc
keywords(3) ='*Cartesian'
ifstress(1:6) = 1 !=== because we solve (cMt.ddsdde + cMe).dstran = mbinc for dstran
goto 10
endif
if(keywords(2) == '*PerturbationsS') then
call ReadStepCommons(1, ninc, maxiter,deltaTime, every) ! AN 2016 read(1,*) ninc, maxiter, deltaTime
read(1,*) keywords(3) ! = *Rendulic or *RoscoeIsomorph
keywords(3) = trim( keywords(3) )
if(keywords(3) .ne. '*Rendulic' .and. &
keywords(3) .ne. '*RoscoeIsomorph') &
write(*,*) 'warning: non-Isomorphic perturburbation'
read(1,*) deltaLoad(1)
ifstress(1:6) = 1
goto 10
endif
if(keywords(2) == '*PerturbationsE') then
call ReadStepCommons(1, ninc, maxiter,deltaTime, every) ! AN 2016 read(1,*) ninc, maxiter, deltaTime
read(1,*) keywords(3)
keywords(3) = trim( keywords(3) )
if(keywords(3) .ne. '*Rendulic' .and. &
keywords(3) .ne. '*RoscoeIsomorph') &
write(*,*) 'warning: Anisomorphic perturburbation'
read(1,*) deltaLoad(1)
goto 10
endif
if(keywords(2)=='*ImpactTriaxialE1') then !LEZC 2020 a variable strain rate file is needed
read(1,*) ImportFileName
keywords(2) = '*StrainRate'
keywords(3) ='*Cartesian'
call ReadStepCommons(1, ninc, maxiter,deltaTime, every)
ifstress(2:3) = 1
Open(unit=1, file=ImportFileName, action='read', status='old') !Open file for reading data
Read(1,*) nImport
allocate(StrainInc(nImport, 2))
do i= 1, nImport !read data
Read(1,*) StrainInc(i,1), StrainInc(i,2)
enddo
deltaTime=StrainInc(nImport,1)
allocate(InterpolatedStrainInc(ninc))
call InterpolsteStrains(ninc,nImport, StrainInc, deltaTime, InterpolatedStrainInc)
deallocate(StrainInc)
goto 10
endif
if(keywords(2) == '*End') stop '*End encountered in test.inp'
write(*,*) 'error: unknown keywords(2)=',keywords(2)
stop 'stopped by unknown keyword(2) in test.inp'
10 keywords(3) = trim(keywords(3))
if(keywords(1) == '*Repetition' .and. iRepetition == 1) then ! remember the description of step for the next repetition
ofStep(istep)%ninc = ninc
ofStep(istep)%maxiter = maxiter
ofStep(istep)%ifstress = ifstress
ofStep(istep)%deltaLoadCirc = deltaLoadCirc
ofStep(istep)%phase0 = phase0
ofStep(istep)%deltaLoad = deltaLoad
ofStep(istep)%dfgrd0 = dfgrd0
ofStep(istep)%dfgrd1 = dfgrd1
ofStep(istep)%deltaTime = deltaTime
ofStep(istep)%keyword2 = keywords(2)
ofStep(istep)%keyword3 = keywords(3)
ofStep(istep)%cMe = cMe
ofStep(istep)%cMt = cMt
ofStep(istep)%mbinc = mbinc
ofStep(istep)%exitCond = exitCond ! AN 2016
ofStep(istep)%existCond = existCond ! AN 2016
ofStep(istep)%ImportFileName = ImportFileName ! AN 2016
ofStep(istep)%mImport = mImport ! AN 2016
ofStep(istep)%columnsInFile = columnsInFile ! AN 2016 7 integers with numbers of columns (or value = 0)
ofStep(istep)%importFactor = importFactor ! AN 2016
endif
if(any(ifstress==1)) maxiter = max(maxiter,5) ! at least 5 iterations
if(all(ifstress==0) .and. keywords(2) .ne. '*ObeyRestrictions') &
maxiter = 1 ! no iterations are necessary
! start the current step with zero-load call of umat() just to get the stiffness
dstran(:)=0
dtime=0
dtemp=0
kinc=0
r_statev(:)=statev(:); r_stress(:)=stress(:) ! AN 21.06.2017 remember the initial state and stress
call UMAT(stress,statev,ddsdde,sse,spd,scd, & !=== first call umat with dstrain=0 dtime=0 just for stiffness (=jacobian ddsdde)
rpl,ddsddt,drplde,drpldt, &
stran,dstran,time,dtime,temp,dtemp,predef,dpred,cmname, &
ndi,nshr,ntens,nstatv,props,nprops,coords,drot,pnewdt, &
celent,dfgrd0,dfgrd1,noel,npt,layer,kspt,0,kinc) !=== some constitutive models require kStep=0 other do not
statev(:)=r_statev(:); stress(:)=r_stress(:) ! AN 21.06.2017 recover stress and state although the ZERO call of umat should not modify them
select case( keywords(3) )
case('*Cartesian' ) ; M = MCart ; MmT = MCartmT
case('*Roscoe') ; M = MRosc ; MmT = MRoscmT
case('*RoscoeIsomorph'); M = MRoscI ; MmT = MRoscImT
case('*Rendulic') ; M = MRendul; MmT = MRendulmT
case default ; write(*,*) 'Unknown keyword = ', keywords(3)
stop ' stopped by unknown keywords(3) in test.inp'
end select
if(keywords(2) == '*ImportFile' ) then ! AN 2016
open(3,file=ImportFileName, status ='old', err=905) ! AN 2016
do ! AN 2016
read(3,'(a)',err=906) hugeLine; ! AN 2016
hugeLine= adjustL(hugeLine) ; aChar = hugeLine(1:1) ! AN 2016
if(index('1234567890+-.',aChar) > 0) exit ! preceding non-numeric lines in ImportFile will be ignored
enddo
read(hugeLine,*,err=907) oldState(1:mImport) ! AN 2016
endif
ievery=1
do 100 kinc=1,ninc
if(keywords(2) == '*ImportFile') then ! AN 2016
read(3,*,iostat=i) newState(1:mImport) ! AN 2016
if(i > 0) then ! AN 2016
write(*,*) 'error Import file',ImportFileName, 'line=', kinc+1 ! AN 2016
stop ! AN 2016
endif ! AN 2016
if(i < 0) then ! AN 2016
close(3) ! AN 2016
write(*,*) 'finished reading file', ImportFileName ! AN 2016
exit ! AN 2016
endif ! AN 2016
dState = newState(:) - oldState(:) ! AN 2016
do i=1,6 ! AN 2016
if (columnsInFile(i) == 0) cycle ! AN 2016
if (ifstress(i)==1 ) ddstress(i)= dState(columnsInFile(i))* &
ImportFactor(i) ! AN 2016
if (ifstress(i)==0) dstran(i) = dState(columnsInFile(i))*& ImportFactor(i) ! AN 2016
enddo ! AN 2016
if(columnsInFile(7)/= 0) deltaTime= dState(columnsInFile(7))* &
ImportFactor(i) ! AN 2016
dtime = deltaTime ! AN 2016
oldState(:) = newState(:) ! AN 2016
endif ! AN 2016
if(keywords(2) /= '*ImportFile') then ! AN 2016
call get_increment(keywords, time, deltaTime, ifstress, ninc, & ! get inc. in terms of Rosc. variables
deltaLoadCirc,phase0,deltaLoad, &
dtime, ddstress, dstran, Qb33, &
dfgrd0, dfgrd1,drot )
if (keywords(1)=='*ImpactTriaxialE1') then
do i=1,6
if (dstran(i)==1.0d0) dstran(i)=InterpolatedStrainInc(kinc)
enddo
dstran(3:6)=0.0d0
endif
endif
a_dstress(:)= 0.0d0 ! approximated Roscoe's dstress
r_statev(:)=statev(:) ! remember the initial state and stress till the iteration is completed
r_stress(:)= stress ! remembered Cartesian stress
do 95 kiter=1, maxiter !--------Equilibrium Iteration--------
if(keywords(2)== '*ObeyRestrictions' ) then ! ======================= ObeyRestrictions =========
ddsdde_bar = matmul(cMt,ddsdde) + cMe
u_dstress = - matmul(cMt,a_dstress)-matmul(cMe,dstran)+ mbinc
call USOLVER(ddsdde_bar,c_dstran,u_dstress,ifstress,ntens)
dstran = dstran + c_dstran
call UMAT(stress,statev,ddsdde,sse,spd,scd, &
rpl,ddsddt,drplde,drpldt, &
stran,dstran,time,dtime,temp,dtemp,predef,dpred,cmname, &
ndi,nshr,ntens,nstatv,props,nprops,coords,drot,pnewdt, &
celent,dfgrd0,dfgrd1,noel,npt,layer,kspt,kStep,kinc)
if(kiter.lt.maxiter) then ! continue iteration
statev(:)=r_statev(:) ! 1) undo the update of state (done by umat)
a_dstress = stress - r_stress ! 2) compute the new approximation of dstress
stress(:)=r_stress(:) ! 3) undo the update of (stress done by umat)
else
stran(:)=stran(:)+dstran(:) ! accept the updated state and stress (Cartesian)
endif
endif ! ==== obey-restrictions
if(keywords(2) /= '*ObeyRestrictions' ) then ! ======================= disObeyRestrictions ==========
u_dstress = 0.0d0
c_dstran= 0.0d0
where (ifstress == 1) u_dstress =ddstress -a_dstress ! undesired Roscoe stress
ddsdde_bar = matmul(matmul(M,ddsdde),transpose(M)) ! Roscoe-Roscoe stiffness
call USOLVER(ddsdde_bar,c_dstran,u_dstress,ifstress,ntens) ! get Rosc. correction c\_dstran() caused by undesired Rosc. dstress
where (ifstress == 1) dstran = dstran + c_dstran ! corrected Rosc. dstran where stress-controlled
dstran_Cart = matmul( transpose(M),dstran ) ! transsform Rosc. to Cartesian dstran
call UMAT(stress,statev,ddsdde,sse,spd,scd, &
rpl,ddsddt,drplde,drpldt, &
stran,dstran_Cart,time,dtime,temp,dtemp,predef,dpred,cmname, &
ndi,nshr,ntens,nstatv,props,nprops,coords,drot,pnewdt, &
celent,dfgrd0,dfgrd1,noel,npt,layer,kspt,kStep,kinc)
if (kiter.lt.maxiter) then ! continue iteration
statev(:)=r_statev(:) ! 1) forget the changes of state done in umat
stress_Rosc = matmul(M,stress) ! output from umat transform to Roscoe ?
r_stress_Rosc = matmul(M,r_stress)
where (ifstress ==1) a_dstress = stress_Rosc - r_stress_Rosc ! 2) compute the new approximation of stress
stress(:)=r_stress(:) ! 3) forget the changes of stress done in umat
else
stran(:)=stran(:)+dstran_Cart(:) ! accept the updated state and stress (Cartesian)
endif
endif ! ==== disObey-restrictions
94 continue
if((kiter==maxiter) .and. mod(kinc,10)==0 .and. verbose ) then ! write to screen
write(*,'(12H ikeyword = ,i3, 8H kstep = ,i3,7H kinc = ,i5, &
9H kiter = ,i2)') ikeyword, kStep, kinc, kiter
endif
95 continue !--------------------end of Equilibrium Iteration
aux1 = dot_product(a_dstress,a_dstress)
aux2 = dot_product(u_dstress,u_dstress)
if((aux1>1.d-10 .and. aux2/aux1 > 1.0d-2) .or. &
(aux1<1.d-10 .and. aux2 > 1.0d-12) ) then
write(*,*) &
'I cannot apply the prescribed stress components,'// &
'||u_dstress|| too large.' ! check the Rosc.stress error < toler
endif
if(keywords(2) =='*DeformationGradient' ) then ! rigid rotation of stress
T33 = map2T(stress,6)
T33 = matmul( matmul(Qb33,T33),transpose(Qb33))
stress=map2stress(T33,6) ! rigid rotation of strain
eps33 = map2D(stran,6)
eps33 = matmul( matmul(Qb33,eps33),transpose(Qb33))
stran=map2stran(eps33,6)
endif
where(abs(time) < 1.0d-99) time = 0.0d0 ! prevents fortran error write 1.3E-391
where(abs(stran) < 1.0d-99) stran = 0.0d0
where(abs(stress) < 1.0d-99) stress = 0.0d0
where(abs(statev) < 1.0d-99) statev = 0.0d0
if(ievery==1) then
write(2,'(500(g17.11,3h ))') time+(/dtime,dtime/), &
stran, stress, statev
endif
if(keywords(2) =='*PerturbationsS' .or. &
keywords(2) =='*PerturbationsE' ) then ! having plotted everything undo the increment
stran(:)=stran(:) - dstran_Cart(:)
statev(:)=r_statev(:)
stress(:)=r_stress(:)
endif
time(1)=time(1)+dtime ! step time at the beginning of the increment
time(2)=time(2)+dtime ! total time at the beginning of the increment
if( existCond ) then ! AN 2016 only if a condition exists
if( EXITNOW(exitCond, stress,stran,statev,nstatv) ) exit ! AN 2016 depending on exitCond go to next step
endif ! AN 2016
ievery = ievery+1; if(ievery > every) ievery = 1
!*****************************************************
if(keywords(2) == '*ImportFile' ) then
call tryAlignStress(align, kinc, newState, mImport,stress,ntens)
endif
!***********************************************
100 continue ! next kinc
if (keywords(1)=='*ImpactTriaxialE1') deallocate(InterpolatedStrainInc)
120 continue ! next iStep
130 continue ! next iRepetition
200 continue ! next keyword
998 stop 'End or record encountered in test.inp'
999 close(1)
close(2)
stop 'I have reached end of the file test.inp'
901 stop 'I cannot open the file parameters.inp'
902 stop 'I cannot open the file initialconditions.inp'
903 stop 'I cannot open the file test.inp'
904 stop 'I cannot open the outputfile'
905 stop 'I cannot open the ImportFile'
906 stop 'Error reading ImportFile in the first non-numeric records '
907 stop 'Error reading ImportFile in the first numeric record '
contains !========================================================
!> contained in program that_calls_umat that reads the command line
subroutine get_command_line_arguments()
implicit none ! ===file names in the command line override defaults
integer :: iarg,narg, is, iargc
integer, parameter :: argLength=40
character(argLength) :: anArgument, argType, argValue
narg = iargc()
do iarg = 1,narg
call getarg(iarg,anArgument)
is = index(anArgument,'=')
if(is == 0) stop 'error: a command line argument without "=" '
argType = anArgument(:is-1)
argValue = anArgument(is+1:)
select case (argType)
case ('param')
parametersfilename = argValue
case ('ini')
initialconditionsfilename = argValue
case ('test')
testfilename = argValue
case ('out')
outputfilename = argValue
case ('verbose')
if (argValue == 'true') verbose = .true.
if (argValue == 'false') verbose = .false.
end select
enddo
end subroutine get_command_line_arguments
!> contained in program that_calls_umat writes a 6x6 matrix for debugging with Mma
subroutine write66(a)
implicit none
real(8),dimension(6,6) :: a,aT
aT = Transpose(a)
open(12,file='nic.m',access='append')
write(12,'(6ha66={ ,( 2h{ ,5(f15.4,2h, ),f15.4, 3h}, ))' ) aT
close(12)
end subroutine write66
!> contained in program that_calls_umat writes a 6x1 matrix for debugging with Mma
subroutine write6(a)
implicit none
real(8), dimension(6) :: a
open(12,file='nic.m',access='append')
write(12,'( 5hx6={ , 5(f15.4,2h, ),f15.4, 3h} )' ) a
close(12)
end subroutine write6
!> contained in program that_calls_umat converts D(3,3) to stran(6)
function map2stran(a,ntens)
implicit none !===converts D(3,3) to stran(6) with $\gamma_{12} = 2 \epsilon_{12}$ etc.
real(8), intent(in), dimension(1:3,1:3) :: a
integer, intent(in) :: ntens
real(8), dimension(1:ntens) :: map2stran
real(8), dimension(1:6) :: b
b =[a(1,1),a(2,2),a(3,3),2*a(1,2),2*a(1,3),2*a(2,3)]
map2stran(1:ntens)=b(1:ntens)
end function map2stran
!> contained in program that_calls_umat converts strain rate from vector dstran(1:ntens) to D(3,3)
function map2D(a,ntens)
implicit none
real(8), dimension(1:3,1:3) :: map2D
integer, intent(in) :: ntens
real(8), intent(in), dimension(:) :: a
real(8),dimension(1:6) :: b = 0
b(1:ntens) = a(1:ntens)
map2D = reshape( [b(1), b(4)/2, b(5)/2, &
b(4)/2,b(2),b(6)/2, b(5)/2,b(6)/2, b(3)],[3,3] )
end function map2D
!> contained in program that_calls_umat converts tensor T(3,3) to matrix stress(ntens)
function map2stress(a,ntens)
implicit none
real(8), intent(in), dimension(1:3,1:3) :: a
integer, intent(in) :: ntens
real(8), dimension(1:ntens) :: map2stress
real(8), dimension(1:6) :: b
b = [a(1,1),a(2,2),a(3,3),a(1,2),a(1,3),a(2,3)]
map2stress = b(1:ntens)
end function map2stress
!> contained in program that_calls_umat converts matrix stress(1:ntens) to tensor T(3,3)
function map2T(a,ntens)
implicit none
real(8), dimension(1:3,1:3) :: map2T
integer, intent(in) :: ntens
real(8), intent(in), dimension(:) :: a
real(8), dimension(1:6) :: b= 0
b(1:ntens) = a(1:ntens)
map2T = reshape( [b(1),b(4),b(5), &
b(4),b(2),b(6), b(5),b(6),b(3) ],[3,3] )
end function map2T
!> contained in program that_calls_umat reads a file with instructions for stress alignment
subroutine readAlignment(align, ImportFileName )
implicit none
character(len=40) ImportFileName, trunc, extension
character(len=80) ReversalFileName
logical :: okSplit
type(StressAlignment) :: align
call splitaLine( ImportFileName ,'.',trunc, extension, okSplit )
if(.not. okSplit) stop'error readAlignment FileName without . '
reversalFileName = Trim(trunc) // 'rev'
open(22, file=reversalFileName,status ='old', err=555 )
align%active=.True.
align%reversal(:) = 0
read(22,*,err=556) align%kblank,align%nrec,align%kReversal, &
align%ncol
read(22,*,err=557) align%reversal(1:align%kReversal)
read(22,*,err=558) align%isig(1:6)
read(22,*,err=559) align%sigFac(1:6)
return
555 align%active=.False.
return
556 stop 'error readAlignment cannot read kblank... '
557 stop 'error readAlignment cannot read reversal() '
558 stop 'error readAlignment cannot read sigCol() '
559 stop 'error readAlignment cannot read factor() '
end subroutine readAlignment
!> contained in program that_calls_umat tries to align stress to values from aState(1:mImport)
subroutine tryAlignStress &
(align, kinc, aState, mImport,stress,ntens)
implicit none
integer:: mImport,kinc,ntens,ie
real(8) :: aState(mImport)
real(8) :: stress(ntens)
type(StressAlignment) :: align
if(.not. align%active) return
if(.not. any(align%Reversal == kinc)) return
! only stress components for which isig(ie) /= 0 will be aligned
forall(ie=1:ntens, align%isig(ie) /= 0) &
stress(ie)= aState( align%isig(ie))*align%sigFac(ie)
return
end subroutine tryAlignStress
end program that_calls_umat
! ==========================================================================
!> basing on an input command with parameters converts deltaLoad or deltaLoadCirc
!> to the canonical three lists: dstress(), dstrain(), ifstress()
subroutine get_increment(keywords, time, deltaTime,ifstress,ninc, &
deltaLoadCirc,phase0,deltaLoad, &
dtime, ddstress, dstran , Qb33, &
dfgrd0, dfgrd1,drot )
implicit none
character(40):: keywords(10)
integer, intent(in) :: ifstress(6),ninc
real(8), intent(in) :: time(2), deltaTime, &
deltaLoadCirc(6),phase0(6), &
deltaLoad(9)
real(8), intent(out) :: dtime, ddstress(6), dstran(6), Qb33(3,3)
real(8), intent(in out) :: dfgrd0(3,3), dfgrd1(3,3), drot(3,3)
real(8), parameter :: Pi = 3.1415926535897932385d0
real(8),parameter,dimension(3,3):: delta = &
reshape((/1,0,0,0,1,0,0,0,1/),(/3,3/))
real(8),dimension(3,3):: Fb,Fbb, dFb,aux33,dLb,depsb,dOmegab
real(8):: wd(6), & ! angular velocity (in future individual for each component)
w0(6), & ! initial phase shift for a component
t ! step time
integer(4) :: i
logical :: ok
dtime = deltaTime/ ninc
dstran= 0
ddstress=0
Qb33 = delta
drot = delta
dfgrd0=delta
dfgrd1=delta
!------------------------------------------------------
if(keywords(2) == '*StrainRate') then
do i=1,6
if (ifstress(i)==1) ddstress(i) = deltaLoad(i)/ ninc
if (ifstress(i)==0) dstran(i) = 1.0d0 ! To be assigned later LEZC 2020
enddo
endif
!------------------------------------------------------
if(keywords(2) == '*LinearLoad') then ! proportional loading
do i=1,6
if (ifstress(i)==1) ddstress(i) = deltaLoad(i)/ ninc
if (ifstress(i)==0) dstran(i) = deltaLoad(i)/ ninc ! log strain -> corresp. displac. inc. not constant
enddo
! here dfgrd0 and dfgrd1 can be defined from stran assuming polar decomposition F=V.R with R=1 and V = exp(stran)
! for dfgrd0 use stran
! for dfgrd1 use stran-dstran
endif
!--------------------------------------------------
if(keywords(2) == '*DeformationGradient') then ! full deformation gradient.
Fb = reshape((/deltaLoad(1), deltaLoad(5), deltaLoad(7), & ! finite rotations calculated after Hughes+Winget 1980
deltaLoad(4), deltaLoad(2), deltaLoad(9), &
deltaLoad(6), deltaLoad(8), deltaLoad(3) &
/) , (/3,3/))
Fbb = delta + (Fb-delta)*(time(1)/deltaTime)
dfgrd0 = Fbb
dFb = (Fb-delta)/ninc
aux33 = Fbb + dFb/2.0d0
dfgrd1 = Fbb + dFb
! call matrix('inverse', aux33, 3, ok )
aux33 = inv33(aux33)
dLb = matmul(dFb,aux33)
depsb = 0.5d0*(dLb + transpose(dLb))
dstran=(/depsb(1,1), depsb(2,2),depsb(3,3), &
2.0d0*depsb(1,2),2.0d0*depsb(1,3),2.0d0*depsb(2,3)/)
dOmegab = 0.5d0*(dLb - transpose(dLb))
aux33 = delta - 0.5d0*dOmegab
! call matrix('inverse', aux33, 3, ok )
aux33 = inv33(aux33)
Qb33 = matmul(aux33, (delta+0.5d0*dOmegab))
drot=Qb33
endif
!------------------------------------------------------
if(keywords(2) == '*CirculatingLoad' )then ! harmonic oscillation
wd(:) = 2*Pi/deltaTime
w0 = phase0
t= time(1) + dtime/2 ! step time in the middle of the increment
do i=1,6
if(ifstress(i)==1) &
ddstress(i)=dtime*deltaLoadCirc(i)*wd(i)*Cos(wd(i)*t+w0(i))+ &
deltaLoad(i)/ ninc
if(ifstress(i)==0)dstran(i)= &
dtime*deltaLoadCirc(i)*wd(i)*Cos(wd(i)*t+w0(i))+ &
deltaLoad(i)/ ninc
enddo
! here dfgrd0 and dfgrd1 can be defined from stran assuming polar decomposition F=V.R with R=1 and V = exp(stran)
! for dfgrd0 use stran