DAMASK_EICMD/src/damage_nonlocal.f90

210 lines
7.8 KiB
Fortran

!--------------------------------------------------------------------------------------------------
!> @author Pratheek Shanthraj, Max-Planck-Institut für Eisenforschung GmbH
!> @brief material subroutine for non-locally evolving damage field
!--------------------------------------------------------------------------------------------------
module damage_nonlocal
use prec
use material
use config
use YAML_types
use crystallite
use lattice
use constitutive
use results
implicit none
private
type :: tParameters
character(len=pStringLen), allocatable, dimension(:) :: &
output
end type tParameters
type, private :: tNumerics
real(pReal) :: &
charLength !< characteristic length scale for gradient problems
end type tNumerics
type(tparameters), dimension(:), allocatable :: &
param
type(tNumerics), private :: &
num
public :: &
damage_nonlocal_init, &
damage_nonlocal_getSourceAndItsTangent, &
damage_nonlocal_getDiffusion, &
damage_nonlocal_getMobility, &
damage_nonlocal_putNonLocalDamage, &
damage_nonlocal_results
contains
!--------------------------------------------------------------------------------------------------
!> @brief module initialization
!> @details reads in material parameters, allocates arrays, and does sanity checks
!--------------------------------------------------------------------------------------------------
subroutine damage_nonlocal_init
integer :: Ninstances,Nmaterialpoints,h
class(tNode), pointer :: &
num_generic, &
material_homogenization, &
homog, &
homogDamage
print'(/,a)', ' <<<+- damage_nonlocal init -+>>>'; flush(6)
!------------------------------------------------------------------------------------
! read numerics parameter
num_generic => config_numerics%get('generic',defaultVal= emptyDict)
num%charLength = num_generic%get_asFloat('charLength',defaultVal=1.0_pReal)
Ninstances = count(damage_type == DAMAGE_nonlocal_ID)
allocate(param(Ninstances))
material_homogenization => config_material%get('homogenization')
do h = 1, material_homogenization%length
if (damage_type(h) /= DAMAGE_NONLOCAL_ID) cycle
homog => material_homogenization%get(h)
homogDamage => homog%get('damage')
associate(prm => param(damage_typeInstance(h)))
#if defined (__GFORTRAN__)
prm%output = output_asStrings(homogDamage)
#else
prm%output = homogDamage%get_asStrings('output',defaultVal=emptyStringArray)
#endif
Nmaterialpoints = count(material_homogenizationAt == h)
damageState(h)%sizeState = 1
allocate(damageState(h)%state0 (1,Nmaterialpoints), source=1.0_pReal)
allocate(damageState(h)%subState0(1,Nmaterialpoints), source=1.0_pReal)
allocate(damageState(h)%state (1,Nmaterialpoints), source=1.0_pReal)
damage(h)%p => damageState(h)%state(1,:)
end associate
enddo
end subroutine damage_nonlocal_init
!--------------------------------------------------------------------------------------------------
!> @brief calculates homogenized damage driving forces
!--------------------------------------------------------------------------------------------------
subroutine damage_nonlocal_getSourceAndItsTangent(phiDot, dPhiDot_dPhi, phi, ip, el)
integer, intent(in) :: &
ip, & !< integration point number
el !< element number
real(pReal), intent(in) :: &
phi
real(pReal) :: &
phiDot, dPhiDot_dPhi
phiDot = 0.0_pReal
dPhiDot_dPhi = 0.0_pReal
call constitutive_damage_getRateAndItsTangents(phiDot, dPhiDot_dPhi, phi, ip, el)
phiDot = phiDot/real(homogenization_Nconstituents(material_homogenizationAt(el)),pReal)
dPhiDot_dPhi = dPhiDot_dPhi/real(homogenization_Nconstituents(material_homogenizationAt(el)),pReal)
end subroutine damage_nonlocal_getSourceAndItsTangent
!--------------------------------------------------------------------------------------------------
!> @brief returns homogenized non local damage diffusion tensor in reference configuration
!--------------------------------------------------------------------------------------------------
function damage_nonlocal_getDiffusion(ip,el)
integer, intent(in) :: &
ip, & !< integration point number
el !< element number
real(pReal), dimension(3,3) :: &
damage_nonlocal_getDiffusion
integer :: &
homog, &
grain
homog = material_homogenizationAt(el)
damage_nonlocal_getDiffusion = 0.0_pReal
do grain = 1, homogenization_Nconstituents(homog)
damage_nonlocal_getDiffusion = damage_nonlocal_getDiffusion + &
crystallite_push33ToRef(grain,ip,el,lattice_D(1:3,1:3,material_phaseAt(grain,el)))
enddo
damage_nonlocal_getDiffusion = &
num%charLength**2*damage_nonlocal_getDiffusion/real(homogenization_Nconstituents(homog),pReal)
end function damage_nonlocal_getDiffusion
!--------------------------------------------------------------------------------------------------
!> @brief Returns homogenized nonlocal damage mobility
!--------------------------------------------------------------------------------------------------
real(pReal) function damage_nonlocal_getMobility(ip,el)
integer, intent(in) :: &
ip, & !< integration point number
el !< element number
integer :: &
ipc
damage_nonlocal_getMobility = 0.0_pReal
do ipc = 1, homogenization_Nconstituents(material_homogenizationAt(el))
damage_nonlocal_getMobility = damage_nonlocal_getMobility + lattice_M(material_phaseAt(ipc,el))
enddo
damage_nonlocal_getMobility = damage_nonlocal_getMobility/&
real(homogenization_Nconstituents(material_homogenizationAt(el)),pReal)
end function damage_nonlocal_getMobility
!--------------------------------------------------------------------------------------------------
!> @brief updated nonlocal damage field with solution from damage phase field PDE
!--------------------------------------------------------------------------------------------------
subroutine damage_nonlocal_putNonLocalDamage(phi,ip,el)
integer, intent(in) :: &
ip, & !< integration point number
el !< element number
real(pReal), intent(in) :: &
phi
integer :: &
homog, &
offset
homog = material_homogenizationAt(el)
offset = material_homogenizationMemberAt(ip,el)
damage(homog)%p(offset) = phi
end subroutine damage_nonlocal_putNonLocalDamage
!--------------------------------------------------------------------------------------------------
!> @brief writes results to HDF5 output file
!--------------------------------------------------------------------------------------------------
subroutine damage_nonlocal_results(homog,group)
integer, intent(in) :: homog
character(len=*), intent(in) :: group
integer :: o
associate(prm => param(damage_typeInstance(homog)))
outputsLoop: do o = 1,size(prm%output)
select case(prm%output(o))
case ('phi')
call results_writeDataset(group,damage(homog)%p,prm%output(o),&
'damage indicator','-')
end select
enddo outputsLoop
end associate
end subroutine damage_nonlocal_results
end module damage_nonlocal