277 lines
12 KiB
Fortran
277 lines
12 KiB
Fortran
!********************************************************************
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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: 28.03.2007
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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 index of material
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! - set statevariable 3 to index of texture
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! - choose output of user variables if desired
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! - make sure the file "mattex.mpie" exists in the working
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! directory
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! - use nonsymmetric option for solver (e.g. direct
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! profile or multifrontal sparse, the latter seems
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! 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, inc, incsub
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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 "crystal.f90"
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!* use a dynamic link for choosing the constitutive file
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include "constitutive_pheno.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,kcus,matus,ndi,&
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nshear,disp,dispt,coord,ffn,frotn,strechn,eigvn,ffn1,&
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frotn1,strechn1,eigvn1,ncrd,itel,ndeg,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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! (1) F,R,U are only available for continuum and membrane elements (not for
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! shells and beams).
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!
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! (2) For total Lagrangian formulation use the -> 'Elasticity,1' card(=
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! total Lagrange with large disp) in the parameter section of input deck.
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! For updated Lagrangian formulation use the -> 'Plasticity,3' card(=
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! update+finite+large disp+constant d) in the parameter section of
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! input deck.
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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 elastic 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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! kcus(1) layer number
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! kcus(2) internal layer number
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! matus(1) user material identification number
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! matus(2) internal 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 math, only: invnrmMandel, nrmMandel
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use mesh, only: mesh_FEasCP
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use CPFEM, only: CPFEM_general,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
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! Beware of changes in newer Marc versions -- these are from 2005r3
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! concom is needed for inc, subinc, ncycle, lovl
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! include 'concom'
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common/marc_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/marc_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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integer(pInt) cp_en, i
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!
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dimension e(*),de(*),t(*),dt(*),g(*),d(ngens,*),s(*), n(2),coord(ncrd,*),disp(ndeg,*),matus(2),dispt(ndeg,*),ffn(itel,*),&
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frotn(itel,*),strechn(itel),eigvn(itel,*),ffn1(itel,*),frotn1(itel,*),strechn1(itel),eigvn1(itel,*),kcus(2)
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!
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! call general material routine only in cycle 0 and for lovl==6 (stress recovery)
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! subroutine cpfem_general(mpie_ffn, mpie_ffn1, mpie_cn, mpie_tinc, mpie_enp, mpie_in)
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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_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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!********************************************************************
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if ((lovl==6).or.(ncycle==0)) then
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call CPFEM_general(ffn, ffn1, t(1), inc, incsub, ncycle, timinc, n(1), nn)
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endif
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! return stress and jacobi
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! Mandel: 11, 22, 33, 12, 23, 13
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! Marc: 11, 22, 33, 12, 23, 13
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cp_en = mesh_FEasCP('elem', n(1))
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s(1:ngens)=invnrmMandel(1:ngens)*CPFEM_stress_all(1:ngens, nn, cp_en)
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d(1:ngens,1:ngens)=CPFEM_jaco_old(1:ngens,1:ngens, nn, cp_en)
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forall(i=1:ngens) d(1:ngens,i)=d(1:ngens,i)*invnrmMandel(1:ngens)
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return
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END SUBROUTINE
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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, CPFEM_Nresults
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use constitutive, only: constitutive_maxNresults
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use mesh, only: mesh_FEasCP
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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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!
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! assign result variable
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v=CPFEM_results(mod(jpltcd, CPFEM_Nresults+constitutive_maxNresults),&
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int(jpltcd/(CPFEM_Nresults+constitutive_maxNresults)),&
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nn, mesh_FEasCP('elem', m))
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return
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END SUBROUTINE
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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 prec, only: pReal,pInt
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! use CPFEM, only : CPFEM_timefactor_max
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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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