source_damage_isoBrittle.f90

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# 1 "/home/damask_user/GitLabCI_Pipeline_4301/DAMASK/src/source_damage_isoBrittle.f90"
# 1 "<built-in>"
# 1 "<command-line>"
# 1 "/home/damask_user/GitLabCI_Pipeline_4301/DAMASK/src/source_damage_isoBrittle.f90"
!--------------------------------------------------------------------------------------------------
!--------------------------------------------------------------------------------------------------
module source_damage_isobrittle
  use prec
  use debug
  use io
  use math
  use discretization
  use material
  use config
  use results
 
  implicit none
  private
 
  integer,                       dimension(:),           allocatable :: &
    source_damage_isobrittle_offset, &
    source_damage_isobrittle_instance
 
  type, private :: tparameters                                                                      
    real(preal) :: &
      critstrainenergy, &
      n
    character(len=pStringLen), allocatable, dimension(:) :: &
      output
  end type tparameters
 
  type(tparameters), dimension(:), allocatable :: param
 
 
  public :: &
    source_damage_isobrittle_init, &
    source_damage_isobrittle_deltastate, &
    source_damage_isobrittle_getrateanditstangent, &
    source_damage_isobrittle_results
 
contains
 
 
!--------------------------------------------------------------------------------------------------
!--------------------------------------------------------------------------------------------------
subroutine source_damage_isobrittle_init
 
  integer :: ninstance,sourceoffset,nipcmyphase,p
  character(len=pStringLen) :: extmsg = ''
 
  write(6,'(/,a)') ' <<<+-  source_'//source_damage_isobrittle_label//' init  -+>>>'; flush(6)
 
  ninstance = count(phase_source == source_damage_isobrittle_id)
  if (iand(debug_level(debug_constitutive),debug_levelbasic) /= 0) &
    write(6,'(a16,1x,i5,/)') '# instances:',ninstance
 
  allocate(source_damage_isobrittle_offset(size(config_phase)), source=0)
  allocate(source_damage_isobrittle_instance(size(config_phase)), source=0)
  allocate(param(ninstance))
 
  do p = 1, size(config_phase)
    source_damage_isobrittle_instance(p) = count(phase_source(:,1:p) == source_damage_isobrittle_id)
    do sourceoffset = 1, phase_nsources(p)
      if (phase_source(sourceoffset,p) == source_damage_isobrittle_id) then
        source_damage_isobrittle_offset(p) = sourceoffset
        exit
      endif
    enddo
 
    if (all(phase_source(:,p) /= source_damage_isobrittle_id)) cycle
    associate(prm => param(source_damage_isobrittle_instance(p)), &
              config => config_phase(p))
 
    prm%output = config%getStrings('(output)',defaultval=emptystringarray)
 
    prm%N                = config%getFloat('isobrittle_n')
    prm%critStrainEnergy = config%getFloat('isobrittle_criticalstrainenergy')
 
    ! sanity checks
    if (prm%N                <= 0.0_preal) extmsg = trim(extmsg)//' isobrittle_n'
    if (prm%critStrainEnergy <= 0.0_preal) extmsg = trim(extmsg)//' isobrittle_criticalstrainenergy'
 
    nipcmyphase = count(material_phaseat==p) * discretization_nip
    call material_allocatesourcestate(p,sourceoffset,nipcmyphase,1,1,1)
    sourcestate(p)%p(sourceoffset)%atol = config%getFloat('isobrittle_atol',defaultval=1.0e-3_preal)
    if(any(sourcestate(p)%p(sourceoffset)%atol < 0.0_preal)) extmsg = trim(extmsg)//' isobrittle_atol'
 
    end associate
 
!--------------------------------------------------------------------------------------------------
!  exit if any parameter is out of range
    if (extmsg /= '') call io_error(211,ext_msg=trim(extmsg)//'('//source_damage_isobrittle_label//')')
 
enddo
 
end subroutine source_damage_isobrittle_init
 
 
!--------------------------------------------------------------------------------------------------
!--------------------------------------------------------------------------------------------------
subroutine source_damage_isobrittle_deltastate(C, Fe, ipc, ip, el)
 
  integer, intent(in) :: &
    ipc, &                                                                                          !< component-ID of integration point
    ip, &                                                                                           !< integration point
    el
  real(preal),  intent(in), dimension(3,3) :: &
    fe
  real(preal),  intent(in), dimension(6,6) :: &
    c
 
  integer :: &
    phase, &
    constituent, &
    sourceoffset
  real(preal), dimension(6) :: &
    strain
  real(preal) :: &
    strainenergy
 
  phase = material_phaseat(ipc,el)                                                                  
  constituent = material_phasememberat(ipc,ip,el)                                                   
  sourceoffset = source_damage_isobrittle_offset(phase)
 
  strain = 0.5_preal*math_sym33to6(matmul(transpose(fe),fe)-math_i3)
 
  associate(prm => param(source_damage_isobrittle_instance(phase)))
  strainenergy = 2.0_preal*sum(strain*matmul(c,strain))/prm%critStrainEnergy
  ! ToDo: check strainenergy = 2.0_pReal*dot_product(strain,matmul(C,strain))/param(instance)%critStrainEnergy
 
  if (strainenergy > sourcestate(phase)%p(sourceoffset)%subState0(1,constituent)) then
    sourcestate(phase)%p(sourceoffset)%deltaState(1,constituent) = &
      strainenergy - sourcestate(phase)%p(sourceoffset)%state(1,constituent)
  else
    sourcestate(phase)%p(sourceoffset)%deltaState(1,constituent) = &
      sourcestate(phase)%p(sourceoffset)%subState0(1,constituent) - &
      sourcestate(phase)%p(sourceoffset)%state(1,constituent)
  endif
  end associate
 
end subroutine source_damage_isobrittle_deltastate
 
 
!--------------------------------------------------------------------------------------------------
!--------------------------------------------------------------------------------------------------
subroutine source_damage_isobrittle_getrateanditstangent(localphiDot, dLocalphiDot_dPhi, phi, phase, constituent)
 
  integer, intent(in) :: &
    phase, &
    constituent
  real(preal),  intent(in) :: &
    phi
  real(preal),  intent(out) :: &
    localphidot, &
    dlocalphidot_dphi
 
  integer :: &
    sourceoffset
 
  sourceoffset = source_damage_isobrittle_offset(phase)
 
  associate(prm => param(source_damage_isobrittle_instance(phase)))
  localphidot = (1.0_preal - phi)**(prm%n - 1.0_preal) &
              - phi*sourcestate(phase)%p(sourceoffset)%state(1,constituent)
  dlocalphidot_dphi = - (prm%n - 1.0_preal)* (1.0_preal - phi)**max(0.0_preal,prm%n - 2.0_preal) &
                      - sourcestate(phase)%p(sourceoffset)%state(1,constituent)
  end associate
 
end subroutine source_damage_isobrittle_getrateanditstangent
 
 
!--------------------------------------------------------------------------------------------------
!--------------------------------------------------------------------------------------------------
subroutine source_damage_isobrittle_results(phase,group)
 
  integer,          intent(in) :: phase
  character(len=*), intent(in) :: group
 
  integer :: o
 
  associate(prm => param(source_damage_isobrittle_instance(phase)), &
            stt => sourcestate(phase)%p(source_damage_isobrittle_offset(phase))%state)
  outputsloop: do o = 1,size(prm%output)
    select case(trim(prm%output(o)))
      case ('isobrittle_drivingforce')
        call results_writedataset(group,stt,'tbd','driving force','tbd')
    end select
  enddo outputsloop
  end associate
 
end subroutine source_damage_isobrittle_results
 
end module source_damage_isobrittle