95 lines
3.3 KiB
Fortran
95 lines
3.3 KiB
Fortran
!--------------------------------------------------------------------------------------------------
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!> @author Pratheek Shanthraj, Max-Planck-Institut für Eisenforschung GmbH
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!> @brief material subroutine for non-locally evolving damage field
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!--------------------------------------------------------------------------------------------------
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module damage_nonlocal
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use prec
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use material
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use config
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use YAML_types
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use lattice
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use phase
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use results
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implicit none
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private
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type, private :: tNumerics
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real(pReal) :: &
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charLength !< characteristic length scale for gradient problems
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end type tNumerics
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type(tNumerics), private :: &
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num
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public :: &
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damage_nonlocal_init, &
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damage_nonlocal_getDiffusion
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contains
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!--------------------------------------------------------------------------------------------------
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!> @brief module initialization
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!> @details reads in material parameters, allocates arrays, and does sanity checks
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!--------------------------------------------------------------------------------------------------
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subroutine damage_nonlocal_init
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integer :: Ninstances,Nmaterialpoints,h
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class(tNode), pointer :: &
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num_generic, &
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material_homogenization
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print'(/,a)', ' <<<+- damage_nonlocal init -+>>>'; flush(6)
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!------------------------------------------------------------------------------------
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! read numerics parameter
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num_generic => config_numerics%get('generic',defaultVal= emptyDict)
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num%charLength = num_generic%get_asFloat('charLength',defaultVal=1.0_pReal)
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Ninstances = count(damage_type == DAMAGE_nonlocal_ID)
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material_homogenization => config_material%get('homogenization')
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do h = 1, material_homogenization%length
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if (damage_type(h) /= DAMAGE_NONLOCAL_ID) cycle
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Nmaterialpoints = count(material_homogenizationAt == h)
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damageState_h(h)%sizeState = 1
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allocate(damageState_h(h)%state0 (1,Nmaterialpoints), source=1.0_pReal)
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allocate(damageState_h(h)%state (1,Nmaterialpoints), source=1.0_pReal)
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damage(h)%p => damageState_h(h)%state(1,:)
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enddo
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end subroutine damage_nonlocal_init
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!--------------------------------------------------------------------------------------------------
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!> @brief returns homogenized non local damage diffusion tensor in reference configuration
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!--------------------------------------------------------------------------------------------------
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function damage_nonlocal_getDiffusion(ip,el)
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integer, intent(in) :: &
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ip, & !< integration point number
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el !< element number
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real(pReal), dimension(3,3) :: &
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damage_nonlocal_getDiffusion
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integer :: &
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homog, &
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grain
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homog = material_homogenizationAt(el)
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damage_nonlocal_getDiffusion = 0.0_pReal
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do grain = 1, homogenization_Nconstituents(homog)
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damage_nonlocal_getDiffusion = damage_nonlocal_getDiffusion + &
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crystallite_push33ToRef(grain,ip,el,lattice_D(1:3,1:3,material_phaseAt(grain,el)))
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enddo
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damage_nonlocal_getDiffusion = &
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num%charLength**2*damage_nonlocal_getDiffusion/real(homogenization_Nconstituents(homog),pReal)
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end function damage_nonlocal_getDiffusion
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end module damage_nonlocal
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