283 lines
12 KiB
Fortran
283 lines
12 KiB
Fortran
!********************************************************************
|
|
! Material subroutine for MSC.Marc Version 0.1
|
|
!
|
|
! written by F. Roters, P. Eisenlohr, L. Hantcherli, W.A. Counts
|
|
! MPI fuer Eisenforschung, Duesseldorf
|
|
!
|
|
! last modified: 26.03.2007
|
|
!********************************************************************
|
|
! Usage:
|
|
! - choose material as hypela2
|
|
! - set statevariable 2 to number of material
|
|
! - set statevariable 2 to number of texture
|
|
! - choose output of user variables if desired
|
|
! - make sure the file material.mpie exists in the working
|
|
! directory
|
|
! - use nonsymmetric option for solver (e.g. direct profile
|
|
! or multifrontal sparse, the letter seems to be faster!)
|
|
!********************************************************************
|
|
! Marc subroutines used:
|
|
! - hypela2
|
|
! - plotv
|
|
! - quit
|
|
!********************************************************************
|
|
! Marc common blocks included:
|
|
! - concom: lovl, ncycle, inc, incsub
|
|
! - creeps: timinc
|
|
!********************************************************************
|
|
!
|
|
include "prec.f90"
|
|
include "math.f90"
|
|
include "IO.f90"
|
|
include "mesh.f90"
|
|
include "constitutive.f90"
|
|
include "CPFEM.f90"
|
|
!
|
|
subroutine hypela2(d,g,e,de,s,t,dt,ngens,n,nn,kc,mats,ndi,nshear,&
|
|
disp,dispt,coord,ffn,frotn,strechn,eigvn,ffn1,&
|
|
frotn1,strechn1,eigvn1,ncrd1,itel,ndeg1,ndm,&
|
|
nnode,jtype,lclass,ifr,ifu)
|
|
!********************************************************************
|
|
! This is the Marc material routine
|
|
!********************************************************************
|
|
!
|
|
! ************* user subroutine for defining material behavior **************
|
|
!
|
|
!
|
|
!CAUTION: Due to calculation of the Deformation gradients, Stretch Tensors and
|
|
! Rotation tensors at previous and current states, the analysis can be
|
|
! computationally expensive. Please use the user subroutine -> hypela
|
|
! if these kinematic quantities are not needed in the constitutive model
|
|
!
|
|
!
|
|
! IMPORTANT NOTES :
|
|
!
|
|
!
|
|
! (1) You must include the -> process,1,1,1, card in the parameter section
|
|
! of MARC input deck.
|
|
!
|
|
! (2) For total Lagrangian formulation use the -> 'large disp' card in the
|
|
! parameter section of MARC input deck.
|
|
! For updated Lagrangian formulation use the -> 'large disp' and 'update'
|
|
! cards in the parameter section of MARC input deck. However for any
|
|
! large strain calculation (whether elasticity or inelasticity) must entail
|
|
! the use of 'finite' parameter card also.
|
|
!
|
|
! (3) For Plasticity, the 2nd or 3rd cards in 'geometry' option in the model
|
|
! definition sections must be flagged for correct behavior in incompressible
|
|
! deformation.
|
|
!
|
|
! (4) The kinematic quantities are calculated for the following continuum
|
|
! elements (both lower and higher order) :
|
|
! plane stress, plane strain, generalized plane strain, axisymmetric,
|
|
! axisymmetric with twist and brick elements.
|
|
!
|
|
!
|
|
!
|
|
!
|
|
! d stress strain law to be formed
|
|
! g change in stress due to temperature effects
|
|
! e total strain
|
|
! de increment of strain
|
|
! s stress - should be updated by user
|
|
! t state variables (comes in at t=n, must be updated
|
|
! to have state variables at t=n+1)
|
|
! dt increment of state variables
|
|
! ngens size of stress - strain law
|
|
! n element number
|
|
! nn integration point number
|
|
! kc layer number
|
|
! mats material identification number
|
|
! ndi number of direct components
|
|
! nshear number of shear components
|
|
! disp incremental displacements
|
|
! dispt displacements at t=n (at assembly, lovl=4) and
|
|
! displacements at t=n+1 (at stress recovery, lovl=6)
|
|
! coord coordinates
|
|
! ncrd number of coordinates
|
|
! ndeg number of degrees of freedom
|
|
! itel dimension of F and R, either 2 or 3
|
|
! nnode number of nodes per element
|
|
! jtype element type
|
|
! lclass element class
|
|
! ifr set to 1 if R has been calculated
|
|
! ifu set to 1 if strech has been calculated
|
|
!
|
|
! at t=n :
|
|
!
|
|
! ffn deformation gradient
|
|
! frotn rotation tensor
|
|
! strechn square of principal stretch ratios, lambda(i)
|
|
! eigvn(i,j) i principal direction components for j eigenvalues
|
|
!
|
|
! at t=n+1 :
|
|
!
|
|
! ffn1 deformation gradient
|
|
! frotn1 rotation tensor
|
|
! strechn1 square of principal stretch ratios, lambda(i)
|
|
! eigvn1(i,j) i principal direction components for j eigenvalues
|
|
!
|
|
! The following operation obtains U (stretch tensor) at t=n+1 :
|
|
!
|
|
! call scla(un1,0.d0,itel,itel,1)
|
|
! do 3 k=1,3
|
|
! do 2 i=1,3
|
|
! do 1 j=1,3
|
|
! un1(i,j)=un1(i,j)+dsqrt(strechn1(k))*eigvn1(i,k)*eigvn1(j,k)
|
|
!1 continue
|
|
!2 continue
|
|
!3 continue
|
|
!
|
|
!
|
|
use prec, only: pReal,pInt
|
|
use CPFEM, only : CPFEM_stress_all, CPFEM_jaco_old
|
|
implicit real(pReal) (a-h,o-z)
|
|
!
|
|
! Marc common blocks are in fixed format so they have to be pasted in here beware of changes in newer Marc versions
|
|
! these are from 2005r3
|
|
! concom is needed for inc, subinc, ncycle, lovl
|
|
! include 'concom'
|
|
common/concom/ &
|
|
iacous, iasmbl, iautth, ibear, icompl, iconj, icreep, ideva(50), idyn, idynt,&
|
|
ielas, ielcma, ielect, iform, ifour, iharm, ihcps, iheat, iheatt, ihresp,&
|
|
ijoule, ilem, ilnmom, iloren, inc, incext, incsub, ipass, iplres, ipois,&
|
|
ipoist, irpflo, ismall, ismalt, isoil, ispect, ispnow, istore, iswep, ithcrp,&
|
|
itherm, iupblg, iupdat, jacflg, jel, jparks, largst, lfond, loadup, loaduq,&
|
|
lodcor, lovl, lsub, magnet, ncycle, newtnt, newton, noshr, linear, ivscpl,&
|
|
icrpim, iradrt, ipshft, itshr, iangin, iupmdr, iconjf, jincfl, jpermg, jhour,&
|
|
isolvr, jritz, jtable, jshell, jdoubl, jform, jcentr, imini, kautth, iautof,&
|
|
ibukty, iassum, icnstd, icnstt, kmakmas, imethvp,iradrte,iradrtp, iupdate,iupdatp,&
|
|
ncycnt, marmen ,idynme, ihavca, ispf, kmini, imixed, largtt, kdoela, iautofg,&
|
|
ipshftp,idntrc, ipore, jtablm, jtablc, isnecma,itrnspo,imsdif, jtrnspo,mcnear,&
|
|
imech, imecht, ielcmat, ielectt,magnett, imsdift,noplas, jtabls, jactch, jtablth,&
|
|
kgmsto ,jpzo, ifricsh, iremkin,iremfor, ishearp,jspf, machining, jlshell,icompsol,&
|
|
iupblgfo,jcondir,nstcrp, nactive,ipassref, nstspnt,ibeart,icheckmpc, noline, icuring,&
|
|
ishrink,ioffsflg,isetoff, iharmt, inc_incdat, iautspc,ibrake
|
|
! creeps is needed for timinc (time increment)
|
|
! include 'creeps'
|
|
common/creeps/ &
|
|
cptim,timinc,timinc_p,timinc_s,timincm,timinc_a,timinc_b,creept(33),icptim,icfte,icfst,&
|
|
icfeq,icftm,icetem,mcreep,jcreep,icpa,icftmp,icfstr,icfqcp,icfcpm,icrppr,icrcha,icpb,iicpmt,iicpa
|
|
!
|
|
real(pReal) mpie_timefactor, mpie_stress(ngens)
|
|
real(pReal) mpie_jacobi(ngens,ngens)
|
|
!
|
|
dimension e(*),de(*),t(*),dt(*),g(*),d(ngens,ngens),s(ngens),n(2),coord(ncrd,*),disp(ndeg,*),dispt(ndeg,*),ffn(itel,*),&
|
|
frotn(itel,*),strechn(itel),eigvn(itel,*),ffn1(itel,*),frotn1(itel,*),strechn1(itel),eigvn1(itel,*)
|
|
!
|
|
! call general material routine only in increment 0 and for lovl==6 (stress recovery)
|
|
|
|
! subroutine cpfem_general(mpie_s, mpie_d, mpie_ndi,
|
|
! 1 mpie_ffn, mpie_ffn1, mpie_cn, mpie_tinc,
|
|
! 2 mpie_timefactor, mpie_numel, mpie_nip, mpie_en,
|
|
! 3 mpie_in, mpie_mn, mpie_dimension, state_var)
|
|
!********************************************************************
|
|
! This routine calculates the material behaviour
|
|
!********************************************************************
|
|
! mpie_ffn deformation gradient for t=t0
|
|
! mpie_ffn1 deformation gradient for t=t1
|
|
! mpie_cn number of cycle
|
|
! mpie_tinc time increment
|
|
! mpie_en element number
|
|
! mpie_in intergration point number
|
|
! mpie_dimension dimension of stress/strain vector
|
|
!********************************************************************
|
|
cp_en=mesh_mapFEtoCPelement(n(1))
|
|
if ((lovl==6).or.(inc==0)) then
|
|
call cpfem_general(ffn, ffn1, inc, incsub, ncycle, timinc, cp_en, nn)
|
|
endif
|
|
! return stress and jacobi
|
|
s=CPFEM_stress_all(1:ngens, nn, cp_en)
|
|
d=CPFEM_jaco_old(1:ngens,1:ngens, nn, cp_en)
|
|
|
|
return
|
|
end
|
|
!
|
|
!
|
|
subroutine plotv(v,s,sp,etot,eplas,ecreep,t,m,nn,layer,ndi, nshear,jpltcd)
|
|
!********************************************************************
|
|
! This routine sets user defined output variables for Marc
|
|
!********************************************************************
|
|
!
|
|
! select a variable contour plotting (user subroutine).
|
|
!
|
|
! v variable
|
|
! s (idss) stress array
|
|
! sp stresses in preferred direction
|
|
! etot total strain (generalized)
|
|
! eplas total plastic strain
|
|
! ecreep total creep strain
|
|
! t current temperature
|
|
! m element number
|
|
! nn integration point number
|
|
! layer layer number
|
|
! ndi (3) number of direct stress components
|
|
! nshear (3) number of shear stress components
|
|
!
|
|
!********************************************************************
|
|
use prec, only: pReal,pInt
|
|
use CPFEM, only: CPFEM_results, CPFEM_Nresults
|
|
implicit none
|
|
!
|
|
real(pReal) s(*),etot(*),eplas(*),ecreep(*),sp(*)
|
|
real(pReal) v, t(*)
|
|
integer(pInt) m, nn, layer, ndi, nshear, jpltcd
|
|
!
|
|
! assign result variable
|
|
v=CPFEM_result(mod(jpltcd, CPFEM_Nresults+constitutive_Nresults),&
|
|
int(jpltcd/(CPFEM_Nresults+constitutive_Nresults)),&
|
|
nn, mesh_mapFEtoCPelement(m))
|
|
return
|
|
end
|
|
!
|
|
!
|
|
subroutine utimestep(timestep,timestepold,icall,time,timeloadcase)
|
|
!********************************************************************
|
|
! This routine modifies the addaptive time step of Marc
|
|
!********************************************************************
|
|
use prec, only: pReal,pInt
|
|
use CPFEM, only : CPFEM_timefactor_max
|
|
implicit none
|
|
!
|
|
real(pReal) timestep, timestepold, time,timeloadcase
|
|
integer(pInt) icall
|
|
!
|
|
! user subroutine for modifying the time step in auto step
|
|
!
|
|
! timestep : the current time step as suggested by marc
|
|
! to be modified in this routine
|
|
! timestepold : the current time step before it was modified by marc
|
|
! icall : =1 for setting the initial time step
|
|
! =2 if this routine is called during an increment
|
|
! =3 if this routine is called at the beginning
|
|
! of the increment
|
|
! time : time at the start of the current increment
|
|
! timeloadcase: time period of the current load case
|
|
!
|
|
! it is in general not recommended to increase the time step
|
|
! during the increment.
|
|
! this routine is called right after the time step has (possibly)
|
|
! been updated by marc.
|
|
!
|
|
! user coding
|
|
! reduce timestep during increment in case mpie_timefactor is too large
|
|
if(icall==2_pInt) then
|
|
if(mpie_timefactor_max>1.25_pReal) then
|
|
timestep=min(timestep,timestepold*0.8_pReal)
|
|
end if
|
|
return
|
|
! modify timestep at beginning of new increment
|
|
else if(icall==3_pInt) then
|
|
if(mpie_timefactor_max<=0.8_pReal) then
|
|
timestep=min(timestep,timestepold*1.25_pReal)
|
|
else if (mpie_timefactor_max<=1.0_pReal) then
|
|
timestep=min(timestep,timestepold/mpie_timefactor_max)
|
|
else if (mpie_timefactor_max<=1.25_pReal) then
|
|
timestep=min(timestep,timestepold*1.01_pReal)
|
|
else
|
|
timestep=min(timestep,timestepold*0.8_pReal)
|
|
end if
|
|
end if
|
|
return
|
|
end
|