!-------------------------------------------------------------------------------------------------- !> @author Philip Eisenlohr, Max-Planck-Institut für Eisenforschung GmbH !> @author Franz Roters, Max-Planck-Institut für Eisenforschung GmbH !> @author Koen Janssens, Paul Scherrer Institut !> @author Arun Prakash, Fraunhofer IWM !> @author Martin Diehl, Max-Planck-Institut für Eisenforschung GmbH !> @brief interfaces DAMASK with Abaqus/Standard !> @details put the included file abaqus_v6.env in either your home or model directory, !> it is a minimum Abaqus environment file containing all changes necessary to use the !> DAMASK subroutine (see Abaqus documentation for more information on the use of abaqus_v6.env) !-------------------------------------------------------------------------------------------------- #define Abaqus #include "prec.f90" module DAMASK_interface implicit none private character(len=4), dimension(2), parameter, public :: INPUTFILEEXTENSION = ['.pes','.inp'] character(len=4), parameter, public :: LOGFILEEXTENSION = '.log' public :: & DAMASK_interface_init, & getSolverJobName contains !-------------------------------------------------------------------------------------------------- !> @brief reports and sets working directory !-------------------------------------------------------------------------------------------------- subroutine DAMASK_interface_init use ifport, only: & CHDIR implicit none integer, dimension(8) :: & dateAndTime ! type default integer integer :: lenOutDir,ierr character(len=256) :: wd call date_and_time(values = dateAndTime) write(6,'(/,a)') ' <<<+- DAMASK_abaqus_std -+>>>' write(6,'(/,a)') ' Roters et al., Computational Materials Science, 2018' write(6,'(/,a)') ' Version: '//DAMASKVERSION write(6,'(a,2(i2.2,a),i4.4)') ' Date: ',dateAndTime(3),'/',& dateAndTime(2),'/',& dateAndTime(1) write(6,'(a,2(i2.2,a),i2.2)') ' Time: ',dateAndTime(5),':',& dateAndTime(6),':',& dateAndTime(7) write(6,'(/,a)') ' <<<+- DAMASK_interface init -+>>>' call getoutdir(wd, lenOutDir) ierr = CHDIR(wd) if (ierr /= 0) then write(6,'(a20,a,a16)') ' working directory "',trim(wd),'" does not exist' call quit(1) endif #include "compilation_info.f90" end subroutine DAMASK_interface_init !-------------------------------------------------------------------------------------------------- !> @brief using Abaqus/Standard function to get solver job name !-------------------------------------------------------------------------------------------------- character(1024) function getSolverJobName() implicit none integer :: lenJobName getSolverJobName='' call getJobName(getSolverJobName, lenJobName) end function getSolverJobName end module DAMASK_interface #include "commercialFEM_fileList.f90" !-------------------------------------------------------------------------------------------------- !> @brief This is the Abaqus std user subroutine for defining material behavior !-------------------------------------------------------------------------------------------------- subroutine 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,KSLAY,KSPT,KSTEP,KINC) use prec, only: & pReal, & pInt use numerics, only: & !$ DAMASK_NumThreadsInt, & usePingPong use FEsolving, only: & calcMode, & terminallyIll, & symmetricSolver use math, only: & invnrmMandel use debug, only: & debug_info, & debug_reset, & debug_levelBasic, & debug_level, & debug_abaqus use mesh, only: & mesh_unitlength, & mesh_FEasCP, & mesh_ipCoordinates use CPFEM, only: & CPFEM_general, & CPFEM_init_done, & CPFEM_initAll, & CPFEM_CALCRESULTS, & CPFEM_AGERESULTS, & CPFEM_COLLECT, & CPFEM_BACKUPJACOBIAN, & cycleCounter, & theInc, & theTime, & theDelta, & lastIncConverged, & outdatedByNewInc, & outdatedFFN1, & lastStep use homogenization, only: & materialpoint_sizeResults, & materialpoint_results implicit none integer(pInt), intent(in) :: & nDi, & !< Number of direct stress components at this point nShr, & !< Number of engineering shear stress components at this point nTens, & !< Size of the stress or strain component array (NDI + NSHR) nStatV, & !< Number of solution-dependent state variables nProps, & !< User-defined number of material constants noEl, & !< element number nPt,& !< integration point number kSlay, & !< layer number (shell elements etc.) kSpt, & !< section point within the current layer kStep, & !< step number kInc !< increment number character(len=80), intent(in) :: & cmname !< uses-specified material name, left justified real(pReal), intent(in) :: & DTIME, & TEMP, & DTEMP, & CELENT real(pReal), dimension(1), intent(in) :: & PREDEF, & DPRED real(pReal), dimension(2), intent(in) :: & TIME !< step time/total time at beginning of the current increment real(pReal), dimension(3), intent(in) :: & COORDS real(pReal), dimension(nTens), intent(in) :: & STRAN, & !< total strains at beginning of the increment DSTRAN !< strain increments real(pReal), dimension(nProps), intent(in) :: & PROPS real(pReal), dimension(3,3), intent(in) :: & DROT, & !< rotation increment matrix DFGRD0, & !< F at beginning of increment DFGRD1 !< F at end of increment real(pReal), intent(inout) :: & PNEWDT, & !< ratio of suggested new time increment SSE, & !< specific elastic strain engergy SPD, & !< specific plastic dissipation SCD, & !< specific creep dissipation RPL, & !< volumetric heat generation per unit time at the end of the increment DRPLDT !< varation of RPL with respect to the temperature real(pReal), dimension(nTens), intent(inout) :: & STRESS !< stress tensor at the beginning of the increment, needs to be updated real(pReal), dimension(nStatV), intent(inout) :: & STATEV !< solution-dependent state variables real(pReal), dimension(nTens), intent(out) :: & DDSDDT, & DRPLDE real(pReal), dimension(nTens,nTens), intent(out) :: & DDSDDE !< Jacobian matrix of the constitutive model real(pReal) :: temperature ! temp by Abaqus is intent(in) real(pReal), dimension(6) :: stress_h real(pReal), dimension(6,6) :: ddsdde_h integer(pInt) :: computationMode, i, cp_en logical :: cutBack #ifdef _OPENMP integer :: defaultNumThreadsInt !< default value set by Abaqus include "omp_lib.h" defaultNumThreadsInt = omp_get_num_threads() ! remember number of threads set by Marc call omp_set_num_threads(DAMASK_NumThreadsInt) ! set number of threads for parallel execution set by DAMASK_NUM_THREADS #endif temperature = temp ! temp is intent(in) DDSDDT = 0.0_pReal DRPLDE = 0.0_pReal if (iand(debug_level(debug_abaqus),debug_levelBasic) /= 0 .and. noel == 1 .and. npt == 1) then write(6,*) 'el',noel,'ip',npt write(6,*) 'got kInc as',kInc write(6,*) 'got dStran',dStran flush(6) endif if (.not. CPFEM_init_done) call CPFEM_initAll(noel,npt) computationMode = 0 cp_en = mesh_FEasCP('elem',noel) if (time(2) > theTime .or. kInc /= theInc) then ! reached convergence terminallyIll = .false. cycleCounter = -1 ! first calc step increments this to cycle = 0 if (kInc == 1) then ! >> start of analysis << lastIncConverged = .false. ! no Jacobian backup outdatedByNewInc = .false. ! no aging of state calcMode = .false. ! pretend last step was collection write (6,'(i8,1x,i2,1x,a)') noel,npt,'<< UMAT >> start of analysis..!';flush(6) else if (kInc - theInc > 1) then ! >> restart of broken analysis << lastIncConverged = .false. ! no Jacobian backup outdatedByNewInc = .false. ! no aging of state calcMode = .true. ! pretend last step was calculation write (6,'(i8,1x,i2,1x,a)') noel,npt,'<< UMAT >> restart of analysis..!';flush(6) else ! >> just the next inc << lastIncConverged = .true. ! request Jacobian backup outdatedByNewInc = .true. ! request aging of state calcMode = .true. ! assure last step was calculation write (6,'(i8,1x,i2,1x,a)') noel,npt,'<< UMAT >> new increment..!';flush(6) endif else if ( dtime < theDelta ) then ! >> cutBack << lastIncConverged = .false. ! no Jacobian backup outdatedByNewInc = .false. ! no aging of state terminallyIll = .false. cycleCounter = -1 ! first calc step increments this to cycle = 0 calcMode = .true. ! pretend last step was calculation write(6,'(i8,1x,i2,1x,a)') noel,npt,'<< UMAT >> cutback detected..!';flush(6) endif ! convergence treatment end if (usePingPong) then calcMode(npt,cp_en) = .not. calcMode(npt,cp_en) ! ping pong (calc <--> collect) if (calcMode(npt,cp_en)) then ! now --- CALC --- computationMode = CPFEM_CALCRESULTS if ( lastStep /= kStep ) then ! first after ping pong call debug_reset() ! resets debugging outdatedFFN1 = .false. cycleCounter = cycleCounter + 1_pInt endif if(outdatedByNewInc) then computationMode = ior(computationMode,CPFEM_AGERESULTS) ! calc and age results outdatedByNewInc = .false. ! reset flag endif else ! now --- COLLECT --- computationMode = CPFEM_COLLECT ! plain collect if(lastStep /= kStep .and. .not. terminallyIll) & call debug_info() ! first after ping pong reports (meaningful) debugging if (lastIncConverged) then computationMode = ior(computationMode,CPFEM_BACKUPJACOBIAN) ! collect and backup Jacobian after convergence lastIncConverged = .false. ! reset flag endif mesh_ipCoordinates(1:3,npt,cp_en) = mesh_unitlength * COORDS endif else ! --- PLAIN MODE --- computationMode = CPFEM_CALCRESULTS ! always calc if (lastStep /= kStep) then if (.not. terminallyIll) & call debug_info() ! first reports (meaningful) debugging call debug_reset() ! and resets debugging outdatedFFN1 = .false. cycleCounter = cycleCounter + 1_pInt endif if (outdatedByNewInc) then computationMode = ior(computationMode,CPFEM_AGERESULTS) outdatedByNewInc = .false. ! reset flag endif if (lastIncConverged) then computationMode = ior(computationMode,CPFEM_BACKUPJACOBIAN) ! backup Jacobian after convergence lastIncConverged = .false. ! reset flag endif endif theTime = time(2) ! record current starting time theDelta = dtime ! record current time increment theInc = kInc ! record current increment number lastStep = kStep ! record step number if (iand(debug_level(debug_abaqus),debug_levelBasic) /= 0) then write(6,'(a16,1x,i2,1x,a,i8,a,i8,1x,i5,a)') 'computationMode',computationMode,'(',cp_en,':',noel,npt,')' flush(6) endif call CPFEM_general(computationMode,usePingPong,dfgrd0,dfgrd1,temperature,dtime,noel,npt,stress_h,ddsdde_h) ! Mandel: 11, 22, 33, SQRT(2)*12, SQRT(2)*23, SQRT(2)*13 ! straight: 11, 22, 33, 12, 23, 13 ! ABAQUS explicit: 11, 22, 33, 12, 23, 13 ! ABAQUS implicit: 11, 22, 33, 12, 13, 23 ! ABAQUS implicit: 11, 22, 33, 12 forall(i=1:ntens) ddsdde(1:ntens,i) = invnrmMandel(i)*ddsdde_h(1:ntens,i)*invnrmMandel(1:ntens) stress(1:ntens) = stress_h(1:ntens)*invnrmMandel(1:ntens) if(symmetricSolver) ddsdde(1:ntens,1:ntens) = 0.5_pReal*(ddsdde(1:ntens,1:ntens) + transpose(ddsdde(1:ntens,1:ntens))) if(ntens == 6) then stress_h = stress stress(5) = stress_h(6) stress(6) = stress_h(5) ddsdde_h = ddsdde ddsdde(:,5) = ddsdde_h(:,6) ddsdde(:,6) = ddsdde_h(:,5) ddsdde_h = ddsdde ddsdde(5,:) = ddsdde_h(6,:) ddsdde(6,:) = ddsdde_h(5,:) end if statev = materialpoint_results(1:min(nstatv,materialpoint_sizeResults),npt,mesh_FEasCP('elem', noel)) if ( terminallyIll ) pnewdt = 0.5_pReal ! force cutback directly ? !$ call omp_set_num_threads(defaultNumThreadsInt) ! reset number of threads to stored default value end subroutine UMAT !-------------------------------------------------------------------------------------------------- !> @brief calls the exit function of Abaqus/Standard !-------------------------------------------------------------------------------------------------- subroutine quit(mpie_error) use prec, only: & pInt implicit none integer(pInt) :: mpie_error flush(6) call xit end subroutine quit