311 lines
15 KiB
Fortran
311 lines
15 KiB
Fortran
! Copyright 2011-13 Max-Planck-Institut für Eisenforschung GmbH
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!
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! This file is part of DAMASK,
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! the Düsseldorf Advanced MAterial Simulation Kit.
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!
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! DAMASK is free software: you can redistribute it and/or modify
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! it under the terms of the GNU General Public License as published by
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! the Free Software Foundation, either version 3 of the License, or
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! (at your option) any later version.
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!
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! DAMASK is distributed in the hope that it will be useful,
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! but WITHOUT ANY WARRANTY; without even the implied warranty of
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! MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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! GNU General Public License for more details.
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!
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! You should have received a copy of the GNU General Public License
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! along with DAMASK. If not, see <http://www.gnu.org/licenses/>.
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!
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!--------------------------------------------------------------------------------------------------
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! $Id$
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!--------------------------------------------------------------------------------------------------
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!> @author Franz Roters, Max-Planck-Institut für Eisenforschung GmbH
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!> @author Philip Eisenlohr, Max-Planck-Institut für Eisenforschung GmbH
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!> @brief Isostrain (full constraint Taylor assuption) homogenization scheme
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!--------------------------------------------------------------------------------------------------
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module homogenization_isostrain
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use prec, only: &
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pInt
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implicit none
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private
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character (len=*), parameter, public :: &
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homogenization_isostrain_label = 'isostrain'
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integer(pInt), dimension(:), allocatable, public :: &
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homogenization_isostrain_sizeState, &
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homogenization_isostrain_sizePostResults
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integer(pInt), dimension(:,:), allocatable, target, public :: &
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homogenization_isostrain_sizePostResult
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character(len=64), dimension(:,:), allocatable, target, public :: &
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homogenization_isostrain_output !< name of each post result output
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character(len=64), dimension(:), allocatable, private :: &
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homogenization_isostrain_mapping
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integer(pInt), dimension(:), allocatable, private :: &
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homogenization_isostrain_Ngrains
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public :: &
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homogenization_isostrain_init, &
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homogenization_isostrain_stateInit, &
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homogenization_isostrain_partitionDeformation, &
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homogenization_isostrain_updateState, &
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homogenization_isostrain_averageStressAndItsTangent, &
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homogenization_isostrain_averageTemperature, &
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homogenization_isostrain_postResults
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contains
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!--------------------------------------------------------------------------------------------------
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!> @brief allocates all neccessary fields, reads information from material configuration file
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!--------------------------------------------------------------------------------------------------
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subroutine homogenization_isostrain_init(myFile)
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use, intrinsic :: iso_fortran_env ! to get compiler_version and compiler_options (at least for gfortran 4.6 at the moment)
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use math, only: math_Mandel3333to66, math_Voigt66to3333
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use IO
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use material
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integer(pInt), intent(in) :: myFile
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integer(pInt), parameter :: maxNchunks = 2_pInt
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integer(pInt), dimension(1_pInt+2_pInt*maxNchunks) :: positions
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integer(pInt) section, i, j, output, mySize
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integer :: maxNinstance, k ! no pInt (stores a system dependen value from 'count'
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character(len=64) :: tag
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character(len=1024) :: line = '' ! to start initialized
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write(6,*)
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write(6,*) '<<<+- homogenization_',trim(homogenization_isostrain_label),' init -+>>>'
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write(6,*) '$Id$'
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write(6,'(a16,a)') ' Current time : ',IO_timeStamp()
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#include "compilation_info.f90"
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maxNinstance = count(homogenization_type == homogenization_isostrain_label)
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if (maxNinstance == 0) return
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allocate(homogenization_isostrain_sizeState(maxNinstance)) ; homogenization_isostrain_sizeState = 0_pInt
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allocate(homogenization_isostrain_sizePostResults(maxNinstance)); homogenization_isostrain_sizePostResults = 0_pInt
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allocate(homogenization_isostrain_sizePostResult(maxval(homogenization_Noutput), &
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maxNinstance)); homogenization_isostrain_sizePostResult = 0_pInt
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allocate(homogenization_isostrain_Ngrains(maxNinstance)); homogenization_isostrain_Ngrains = 0_pInt
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allocate(homogenization_isostrain_mapping(maxNinstance)); homogenization_isostrain_mapping = 'avg'
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allocate(homogenization_isostrain_output(maxval(homogenization_Noutput), &
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maxNinstance)) ; homogenization_isostrain_output = ''
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rewind(myFile)
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section = 0_pInt
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do while (IO_lc(IO_getTag(line,'<','>')) /= material_partHomogenization) ! wind forward to <homogenization>
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read(myFile,'(a1024)',END=100) line
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enddo
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do ! read thru sections of phase part
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read(myFile,'(a1024)',END=100) line
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if (IO_isBlank(line)) cycle ! skip empty lines
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if (IO_getTag(line,'<','>') /= '') exit ! stop at next part
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if (IO_getTag(line,'[',']') /= '') then ! next section
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section = section + 1_pInt
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output = 0_pInt ! reset output counter
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endif
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if (section > 0 .and. homogenization_type(section) == homogenization_isostrain_label) then ! one of my sections
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i = homogenization_typeInstance(section) ! which instance of my type is present homogenization
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positions = IO_stringPos(line,maxNchunks)
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tag = IO_lc(IO_stringValue(line,positions,1_pInt)) ! extract key
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select case(tag)
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case ('(output)')
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output = output + 1_pInt
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homogenization_isostrain_output(output,i) = IO_lc(IO_stringValue(line,positions,2_pInt))
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case ('ngrains')
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homogenization_isostrain_Ngrains(i) = IO_intValue(line,positions,2_pInt)
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case ('mapping')
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homogenization_isostrain_mapping(i) = IO_lc(IO_stringValue(line,positions,2_pInt))
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end select
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endif
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enddo
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100 do k = 1,maxNinstance
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homogenization_isostrain_sizeState(i) = 0_pInt
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do j = 1_pInt,maxval(homogenization_Noutput)
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select case(homogenization_isostrain_output(j,i))
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case('ngrains')
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mySize = 1_pInt
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case default
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mySize = 0_pInt
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end select
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if (mySize > 0_pInt) then ! any meaningful output found
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homogenization_isostrain_sizePostResult(j,i) = mySize
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homogenization_isostrain_sizePostResults(i) = &
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homogenization_isostrain_sizePostResults(i) + mySize
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endif
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enddo
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enddo
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end subroutine homogenization_isostrain_init
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!--------------------------------------------------------------------------------------------------
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!> @brief sets the initial homogenization stated
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!--------------------------------------------------------------------------------------------------
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function homogenization_isostrain_stateInit(myInstance)
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use prec, only: &
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pReal
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implicit none
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integer(pInt), intent(in) :: myInstance
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real(pReal), dimension(homogenization_isostrain_sizeState(myInstance)) :: &
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homogenization_isostrain_stateInit
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homogenization_isostrain_stateInit = 0.0_pReal
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end function homogenization_isostrain_stateInit
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!--------------------------------------------------------------------------------------------------
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!> @brief partitions the deformation gradient onto the constituents
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!--------------------------------------------------------------------------------------------------
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subroutine homogenization_isostrain_partitionDeformation(F,F0,avgF,state,i,e)
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use prec, only: pReal,p_vec
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use mesh, only: mesh_element
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use material, only: homogenization_maxNgrains,homogenization_Ngrains
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implicit none
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real(pReal), dimension (3,3,homogenization_maxNgrains), intent(out) :: F ! partioned def grad per grain
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real(pReal), dimension (3,3,homogenization_maxNgrains), intent(in) :: F0 ! initial partioned def grad per grain
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real(pReal), dimension (3,3), intent(in) :: avgF ! my average def grad
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type(p_vec), intent(in) :: state ! my state
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integer(pInt), intent(in) :: &
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i, & !< integration point number
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e !< element number
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F = spread(avgF,3,homogenization_Ngrains(mesh_element(3,e)))
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end subroutine homogenization_isostrain_partitionDeformation
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!--------------------------------------------------------------------------------------------------
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!> @brief update the internal state of the homogenization scheme and tell whether "done" and
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! "happy" with result
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!--------------------------------------------------------------------------------------------------
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function homogenization_isostrain_updateState(state,P,dPdF,i,e)
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use prec, only: &
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pReal,&
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p_vec
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use material, only: &
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homogenization_maxNgrains
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implicit none
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type(p_vec), intent(inout) :: state !< my state
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real(pReal), dimension (3,3,homogenization_maxNgrains), intent(in) :: P !< array of current grain stresses
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real(pReal), dimension (3,3,3,3,homogenization_maxNgrains), intent(in) :: dPdF !< array of current grain stiffnesses
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integer(pInt), intent(in) :: &
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i, & !< integration point number
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e !< element number
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logical, dimension(2) :: homogenization_isostrain_updateState
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homogenization_isostrain_updateState = .true. ! homogenization at material point converged (done and happy)
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end function homogenization_isostrain_updateState
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!--------------------------------------------------------------------------------------------------
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!> @brief derive average stress and stiffness from constituent quantities
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!--------------------------------------------------------------------------------------------------
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subroutine homogenization_isostrain_averageStressAndItsTangent(avgP,dAvgPdAvgF,P,dPdF,i,e)
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use prec, only: &
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pReal
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use mesh, only: &
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mesh_element
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use material, only: homogenization_maxNgrains, homogenization_Ngrains, homogenization_typeInstance
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implicit none
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real(pReal), dimension (3,3), intent(out) :: avgP !< average stress at material point
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real(pReal), dimension (3,3,3,3), intent(out) :: dAvgPdAvgF !< average stiffness at material point
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real(pReal), dimension (3,3,homogenization_maxNgrains), intent(in) :: P !< array of current grain stresses
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real(pReal), dimension (3,3,3,3,homogenization_maxNgrains), intent(in) :: dPdF !< array of current grain stiffnesses
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integer(pInt), intent(in) :: &
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i, & !< integration point number
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e !< element number
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integer(pInt) :: homID,Ngrains
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homID = homogenization_typeInstance(mesh_element(3,e))
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Ngrains = homogenization_Ngrains(mesh_element(3,e))
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select case (homogenization_isostrain_mapping(homID))
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case ('parallel','sum')
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avgP = sum(P,3)
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dAvgPdAvgF = sum(dPdF,5)
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case ('average','mean','avg')
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avgP = sum(P,3) /real(Ngrains,pReal)
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dAvgPdAvgF = sum(dPdF,5)/real(Ngrains,pReal)
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case default
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avgP = sum(P,3) /real(Ngrains,pReal)
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dAvgPdAvgF = sum(dPdF,5)/real(Ngrains,pReal)
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end select
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end subroutine homogenization_isostrain_averageStressAndItsTangent
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!--------------------------------------------------------------------------------------------------
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!> @brief derive average temperature from constituent quantities
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!--------------------------------------------------------------------------------------------------
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real(pReal) pure function homogenization_isostrain_averageTemperature(Temperature,i,e)
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use prec, only: &
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pReal
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use mesh, only: &
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mesh_element
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use material, only: &
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homogenization_maxNgrains, &
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homogenization_Ngrains
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implicit none
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real(pReal), dimension (homogenization_maxNgrains), intent(in) :: Temperature
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integer(pInt), intent(in) :: &
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i, & !< integration point number
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e !< element number
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integer(pInt) :: Ngrains
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Ngrains = homogenization_Ngrains(mesh_element(3,e))
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homogenization_isostrain_averageTemperature = sum(Temperature(1:Ngrains))/real(Ngrains,pReal)
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end function homogenization_isostrain_averageTemperature
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!--------------------------------------------------------------------------------------------------
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!> @brief return array of homogenization results for post file inclusion
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!--------------------------------------------------------------------------------------------------
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pure function homogenization_isostrain_postResults(state,i,e)
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use prec, only: &
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pReal,&
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p_vec
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use mesh, only: &
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mesh_element
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use material, only: &
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homogenization_typeInstance, &
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homogenization_Noutput
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implicit none
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type(p_vec), intent(in) :: state
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integer(pInt), intent(in) :: &
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i, & !< integration point number
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e !< element number
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integer(pInt) :: homID,o,c
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real(pReal), dimension(homogenization_isostrain_sizePostResults&
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(homogenization_typeInstance(mesh_element(3,e)))) :: homogenization_isostrain_postResults
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c = 0_pInt
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homID = homogenization_typeInstance(mesh_element(3,e))
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homogenization_isostrain_postResults = 0.0_pReal
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do o = 1_pInt,homogenization_Noutput(mesh_element(3,e))
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select case(homogenization_isostrain_output(o,homID))
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case ('ngrains')
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homogenization_isostrain_postResults(c+1_pInt) = real(homogenization_isostrain_Ngrains(homID),pReal)
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c = c + 1_pInt
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end select
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enddo
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end function homogenization_isostrain_postResults
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end module homogenization_isostrain
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