added mpie_cpfem_marc.f90 (the file to include in marc)
modification in CPFEM.f90 not finished yet
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Franz Roters
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trunk/CPFEM.f90
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trunk/CPFEM.f90
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!********************************************************************
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! Material subroutine for MSC.Marc Version 0.1
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!
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! written by F. Roters, P. Eisenlohr, L. Hantcherli, W.A. Counts
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! MPI fuer Eisenforschung, Duesseldorf
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!
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! last modified: 22.03.2007
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!********************************************************************
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! Usage:
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! - choose material as hypela2
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! - set statevariable 2 to number of material
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! - set statevariable 2 to number of texture
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! - choose output of user variables if desired
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! - make sure the file material.mpie exists in the working
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! directory
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! - use nonsymmetric option for solver (e.g. direct profile
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! or multifrontal sparse, the letter seems to be faster!)
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!********************************************************************
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! Marc subroutines used:
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! - hypela2
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! - plotv
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! - quit
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!********************************************************************
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! Marc common blocks included:
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! - concom: lovl, ncycle
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! - creeps: timinc
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!********************************************************************
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!
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include "prec.f90"
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! include "math.f90"
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! include "IO.f90"
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! include "mesh.f90"
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! include "constitutive.f90"
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include "CPFEM.f90"
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!
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subroutine hypela2(d,g,e,de,s,t,dt,ngens,n,nn,kc,mats,ndi,nshear,&
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disp,dispt,coord,ffn,frotn,strechn,eigvn,ffn1,&
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frotn1,strechn1,eigvn1,ncrd1,itel,ndeg1,ndm,&
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nnode,jtype,lclass,ifr,ifu)
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!********************************************************************
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! This is the Marc material routine
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!********************************************************************
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!
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! ************* user subroutine for defining material behavior **************
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!
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!
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!CAUTION: Due to calculation of the Deformation gradients, Stretch Tensors and
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! Rotation tensors at previous and current states, the analysis can be
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! computationally expensive. Please use the user subroutine -> hypela
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! if these kinematic quantities are not needed in the constitutive model
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!
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!
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! IMPORTANT NOTES :
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!
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!
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! (1) You must include the -> process,1,1,1, card in the parameter section
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! of MARC input deck.
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!
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! (2) For total Lagrangian formulation use the -> 'large disp' card in the
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! parameter section of MARC input deck.
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! For updated Lagrangian formulation use the -> 'large disp' and 'update'
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! cards in the parameter section of MARC input deck. However for any
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! large strain calculation (whether elasticity or inelasticity) must entail
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! the use of 'finite' parameter card also.
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!
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! (3) For Plasticity, the 2nd or 3rd cards in 'geometry' option in the model
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! definition sections must be flagged for correct behavior in incompressible
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! deformation.
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!
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! (4) The kinematic quantities are calculated for the following continuum
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! elements (both lower and higher order) :
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! plane stress, plane strain, generalized plane strain, axisymmetric,
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! axisymmetric with twist and brick elements.
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!
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!
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!
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!
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! d stress strain law to be formed
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! g change in stress due to temperature effects
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! e total strain
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! de increment of strain
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! s stress - should be updated by user
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! t state variables (comes in at t=n, must be updated
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! to have state variables at t=n+1)
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! dt increment of state variables
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! ngens size of stress - strain law
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! n element number
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! nn integration point number
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! kc layer number
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! mats material identification number
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! ndi number of direct components
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! nshear number of shear components
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! disp incremental displacements
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! dispt displacements at t=n (at assembly, lovl=4) and
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! displacements at t=n+1 (at stress recovery, lovl=6)
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! coord coordinates
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! ncrd number of coordinates
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! ndeg number of degrees of freedom
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! itel dimension of F and R, either 2 or 3
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! nnode number of nodes per element
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! jtype element type
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! lclass element class
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! ifr set to 1 if R has been calculated
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! ifu set to 1 if strech has been calculated
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!
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! at t=n :
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!
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! ffn deformation gradient
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! frotn rotation tensor
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! strechn square of principal stretch ratios, lambda(i)
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! eigvn(i,j) i principal direction components for j eigenvalues
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!
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! at t=n+1 :
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!
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! ffn1 deformation gradient
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! frotn1 rotation tensor
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! strechn1 square of principal stretch ratios, lambda(i)
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! eigvn1(i,j) i principal direction components for j eigenvalues
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!
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! The following operation obtains U (stretch tensor) at t=n+1 :
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!
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! call scla(un1,0.d0,itel,itel,1)
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! do 3 k=1,3
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! do 2 i=1,3
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! do 1 j=1,3
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! un1(i,j)=un1(i,j)+dsqrt(strechn1(k))*eigvn1(i,k)*eigvn1(j,k)
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!1 continue
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!2 continue
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!3 continue
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!
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!
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use prec, only: pReal,pInt
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use CPFEM, only : CPFEM_stress_all, CPFEM_jaco_old
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implicit real(pReal) (a-h,o-z)
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!
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! Marc common blocks are in fixed format so they have to be pasted in here beware of changes in newer Marc versions
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! these are from 2005r3
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! concom is needed for inc (# increment), lovl
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! include 'concom'
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common/concom/ &
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iacous, iasmbl, iautth, ibear, icompl, iconj, icreep, ideva(50), idyn, idynt,&
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ielas, ielcma, ielect, iform, ifour, iharm, ihcps, iheat, iheatt, ihresp,&
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ijoule, ilem, ilnmom, iloren, inc, incext, incsub, ipass, iplres, ipois,&
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ipoist, irpflo, ismall, ismalt, isoil, ispect, ispnow, istore, iswep, ithcrp,&
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itherm, iupblg, iupdat, jacflg, jel, jparks, largst, lfond, loadup, loaduq,&
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lodcor, lovl, lsub, magnet, ncycle, newtnt, newton, noshr, linear, ivscpl,&
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icrpim, iradrt, ipshft, itshr, iangin, iupmdr, iconjf, jincfl, jpermg, jhour,&
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isolvr, jritz, jtable, jshell, jdoubl, jform, jcentr, imini, kautth, iautof,&
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ibukty, iassum, icnstd, icnstt, kmakmas, imethvp,iradrte,iradrtp, iupdate,iupdatp,&
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ncycnt, marmen ,idynme, ihavca, ispf, kmini, imixed, largtt, kdoela, iautofg,&
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ipshftp,idntrc, ipore, jtablm, jtablc, isnecma,itrnspo,imsdif, jtrnspo,mcnear,&
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imech, imecht, ielcmat, ielectt,magnett, imsdift,noplas, jtabls, jactch, jtablth,&
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kgmsto ,jpzo, ifricsh, iremkin,iremfor, ishearp,jspf, machining, jlshell,icompsol,&
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iupblgfo,jcondir,nstcrp, nactive,ipassref, nstspnt,ibeart,icheckmpc, noline, icuring,&
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ishrink,ioffsflg,isetoff, iharmt, inc_incdat, iautspc,ibrake
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! creeps is needed for timinc (time increment)
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! include 'creeps'
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common/creeps/ &
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cptim,timinc,timinc_p,timinc_s,timincm,timinc_a,timinc_b,creept(33),icptim,icfte,icfst,&
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icfeq,icftm,icetem,mcreep,jcreep,icpa,icftmp,icfstr,icfqcp,icfcpm,icrppr,icrcha,icpb,iicpmt,iicpa
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!
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real(pReal) mpie_timefactor, mpie_stress(ngens)
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real(pReal) mpie_jacobi(ngens,ngens)
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!
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dimension e(*),de(*),t(*),dt(*),g(*),d(ngens,ngens),s(ngens),n(2),coord(ncrd,*),disp(ndeg,*),dispt(ndeg,*),ffn(itel,*),&
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frotn(itel,*),strechn(itel),eigvn(itel,*),ffn1(itel,*),frotn1(itel,*),strechn1(itel),eigvn1(itel,*)
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!
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! call general material routine only in increment 0 and for lovl==6 (stress recovery)
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! subroutine cpfem_general(mpie_s, mpie_d, mpie_ndi,
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! 1 mpie_ffn, mpie_ffn1, mpie_cn, mpie_tinc,
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! 2 mpie_timefactor, mpie_numel, mpie_nip, mpie_en,
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! 3 mpie_in, mpie_mn, mpie_dimension, state_var)
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!********************************************************************
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! This routine calculates the material behaviour
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!********************************************************************
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! mpie_ffn deformation gradient for t=t0
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! mpie_ffn1 deformation gradient for t=t1
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! mpie_ndi dimension
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! mpie_cn number of cycle
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! mpie_tinc time increment
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! mpie_en element number
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! mpie_in intergration point number
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! mpie_dimension dimension of stress/strain vector
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!********************************************************************
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! CPFEM_ffn_all(:,:, n(1), nn)=ffn
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! CPFEM_ffn1_all(:,:, n(1), nn)=ffn1
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if ((lovl==6).or.(inc==0)) then
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call cpfem_general(ffn, ffn1, ndi, inc, subinc, ncycle, timinc, n(1), nn)
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endif
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! return stress and jacobi
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s=CPFEM_stress_all(1:ngens,n(1), nn)
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d=CPFEM_jaco_old(1:ngens,1:ngens, n(1), nn)
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return
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end
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!
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!
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subroutine plotv(v,s,sp,etot,eplas,ecreep,t,m,nn,layer,ndi, nshear,jpltcd)
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!********************************************************************
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! This routine sets user defined output variables for Marc
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!********************************************************************
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!
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! select a variable contour plotting (user subroutine).
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!
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! v variable
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! s (idss) stress array
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! sp stresses in preferred direction
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! etot total strain (generalized)
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! eplas total plastic strain
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! ecreep total creep strain
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! t current temperature
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! m element number
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! nn integration point number
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! layer layer number
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! ndi (3) number of direct stress components
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! nshear (3) number of shear stress components
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!
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!********************************************************************
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use prec, only: pReal,pInt
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use CPFEM, only: CPFEM_results
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use constitutive, only: constitutive_Nresults
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implicit none
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!
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real(pReal) s(*),etot(*),eplas(*),ecreep(*),sp(*)
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real(pReal) v, t(*)
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integer(pInt) m, nn, layer, ndi, nshear, jpltcd
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real(pReal) orientation_no, result_no
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!
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! calculate position in CPFEM_results
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orientation_no=int(jpltcd/constitutive_Nresults)
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result_no=modulo(jpltcd, constitutive_Nresults)
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! assign result variable
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v=CPFEM_result(result_no, grain_no, m, n)
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return
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end
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!
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!
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subroutine utimestep(timestep,timestepold,icall, time,timeloadcase)
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!********************************************************************
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! This routine modifies the addaptive time step of Marc
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!********************************************************************
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use CPFEM, only : CPFEM_timefactor_max
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use prec, only: pReal,pInt
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implicit none
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!
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real(pReal) timestep, timestepold, time,timeloadcase
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integer(pInt) icall
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!
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! user subroutine for modifying the time step in auto step
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!
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! timestep : the current time step as suggested by marc
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! to be modified in this routine
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! timestepold : the current time step before it was modified by marc
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! icall : =1 for setting the initial time step
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! =2 if this routine is called during an increment
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! =3 if this routine is called at the beginning
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! of the increment
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! time : time at the start of the current increment
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! timeloadcase: time period of the current load case
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!
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! it is in general not recommended to increase the time step
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! during the increment.
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! this routine is called right after the time step has (possibly)
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! been updated by marc.
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!
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! user coding
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! reduce timestep during increment in case mpie_timefactor is too large
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if(icall==2_pInt) then
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if(mpie_timefactor_max>1.25_pReal) then
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timestep=min(timestep,timestepold*0.8_pReal)
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end if
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return
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! modify timestep at beginning of new increment
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else if(icall==3_pInt) then
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if(mpie_timefactor_max<=0.8_pReal) then
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timestep=min(timestep,timestepold*1.25_pReal)
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else if (mpie_timefactor_max<=1.0_pReal) then
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timestep=min(timestep,timestepold/mpie_timefactor_max)
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else if (mpie_timefactor_max<=1.25_pReal) then
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timestep=min(timestep,timestepold*1.01_pReal)
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else
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timestep=min(timestep,timestepold*0.8_pReal)
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end if
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end if
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return
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end
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