explicit Euler is ok (only state is current time)
This commit is contained in:
Martin Diehl
parent
5efa6c997a
commit
7239c0b226
|
|
@ -214,8 +214,8 @@ module constitutive
|
||||||
|
|
||||||
! == cleaned:end ===================================================================================
|
! == cleaned:end ===================================================================================
|
||||||
|
|
||||||
module function integrateThermalState(dt,co,ip,el) result(broken)
|
module function integrateThermalState(Delta_t,co,ip,el) result(broken)
|
||||||
real(pReal), intent(in) :: dt
|
real(pReal), intent(in) :: Delta_t
|
||||||
integer, intent(in) :: &
|
integer, intent(in) :: &
|
||||||
el, & !< element index in element loop
|
el, & !< element index in element loop
|
||||||
ip, & !< integration point index in ip loop
|
ip, & !< integration point index in ip loop
|
||||||
|
|
|
||||||
|
|
@ -204,107 +204,42 @@ function constitutive_thermal_collectDotState(ph,me) result(broken)
|
||||||
end function constitutive_thermal_collectDotState
|
end function constitutive_thermal_collectDotState
|
||||||
|
|
||||||
|
|
||||||
!--------------------------------------------------------------------------------------------------
|
|
||||||
!> @brief integrate stress, state with adaptive 1st order explicit Euler method
|
|
||||||
!> using Fixed Point Iteration to adapt the stepsize
|
|
||||||
!--------------------------------------------------------------------------------------------------
|
|
||||||
module function integrateThermalState(dt,co,ip,el) result(broken)
|
|
||||||
|
|
||||||
real(pReal), intent(in) :: dt
|
!--------------------------------------------------------------------------------------------------
|
||||||
|
!> @brief integrate state with 1st order explicit Euler method
|
||||||
|
!--------------------------------------------------------------------------------------------------
|
||||||
|
function integrateThermalState(Delta_t,co,ip,el) result(broken)
|
||||||
|
|
||||||
|
real(pReal), intent(in) :: Delta_t
|
||||||
integer, intent(in) :: &
|
integer, intent(in) :: &
|
||||||
el, & !< element index in element loop
|
el, & !< element index in element loop
|
||||||
ip, & !< integration point index in ip loop
|
ip, & !< integration point index in ip loop
|
||||||
co !< grain index in grain loop
|
co !< grain index in grain loop
|
||||||
|
logical :: &
|
||||||
|
broken
|
||||||
|
|
||||||
integer :: &
|
integer :: &
|
||||||
NiterationState, & !< number of iterations in state loop
|
|
||||||
ph, &
|
ph, &
|
||||||
me, &
|
me, &
|
||||||
so
|
so, &
|
||||||
integer, dimension(maxval(thermal_Nsources)) :: &
|
sizeDotState
|
||||||
size_so
|
|
||||||
real(pReal) :: &
|
|
||||||
zeta
|
|
||||||
real(pReal), dimension(thermal_source_maxSizeDotState) :: &
|
|
||||||
r ! state residuum
|
|
||||||
real(pReal), dimension(thermal_source_maxSizeDotState,2,maxval(thermal_Nsources)) :: source_dotState
|
|
||||||
logical :: &
|
|
||||||
broken, converged_
|
|
||||||
|
|
||||||
|
|
||||||
ph = material_phaseAt(co,el)
|
ph = material_phaseAt(co,el)
|
||||||
me = material_phaseMemberAt(co,ip,el)
|
me = material_phaseMemberAt(co,ip,el)
|
||||||
|
|
||||||
converged_ = .true.
|
|
||||||
broken = constitutive_thermal_collectDotState(ph,me)
|
broken = constitutive_thermal_collectDotState(ph,me)
|
||||||
if(broken) return
|
if(broken) return
|
||||||
|
|
||||||
do so = 1, thermal_Nsources(ph)
|
do so = 1, thermal_Nsources(ph)
|
||||||
size_so(so) = thermalState(ph)%p(so)%sizeDotState
|
sizeDotState = thermalState(ph)%p(so)%sizeDotState
|
||||||
thermalState(ph)%p(so)%state(1:size_so(so),me) = thermalState(ph)%p(so)%subState0(1:size_so(so),me) &
|
thermalState(ph)%p(so)%state(1:sizeDotState,me) = thermalState(ph)%p(so)%subState0(1:sizeDotState,me) &
|
||||||
+ thermalState(ph)%p(so)%dotState (1:size_so(so),me) * dt
|
+ thermalState(ph)%p(so)%dotState(1:sizeDotState,me) * Delta_t
|
||||||
source_dotState(1:size_so(so),2,so) = 0.0_pReal
|
|
||||||
enddo
|
enddo
|
||||||
|
|
||||||
iteration: do NiterationState = 1, num%nState
|
|
||||||
|
|
||||||
do so = 1, thermal_Nsources(ph)
|
|
||||||
if(nIterationState > 1) source_dotState(1:size_so(so),2,so) = source_dotState(1:size_so(so),1,so)
|
|
||||||
source_dotState(1:size_so(so),1,so) = thermalState(ph)%p(so)%dotState(:,me)
|
|
||||||
enddo
|
|
||||||
|
|
||||||
broken = constitutive_thermal_collectDotState(ph,me)
|
|
||||||
if(broken) exit iteration
|
|
||||||
|
|
||||||
do so = 1, thermal_Nsources(ph)
|
|
||||||
zeta = damper(thermalState(ph)%p(so)%dotState(:,me), &
|
|
||||||
source_dotState(1:size_so(so),1,so),&
|
|
||||||
source_dotState(1:size_so(so),2,so))
|
|
||||||
thermalState(ph)%p(so)%dotState(:,me) = thermalState(ph)%p(so)%dotState(:,me) * zeta &
|
|
||||||
+ source_dotState(1:size_so(so),1,so)* (1.0_pReal - zeta)
|
|
||||||
r(1:size_so(so)) = thermalState(ph)%p(so)%state (1:size_so(so),me) &
|
|
||||||
- thermalState(ph)%p(so)%subState0(1:size_so(so),me) &
|
|
||||||
- thermalState(ph)%p(so)%dotState (1:size_so(so),me) * dt
|
|
||||||
thermalState(ph)%p(so)%state(1:size_so(so),me) = thermalState(ph)%p(so)%state(1:size_so(so),me) &
|
|
||||||
- r(1:size_so(so))
|
|
||||||
converged_ = converged_ .and. converged(r(1:size_so(so)), &
|
|
||||||
thermalState(ph)%p(so)%state(1:size_so(so),me), &
|
|
||||||
thermalState(ph)%p(so)%atol(1:size_so(so)))
|
|
||||||
enddo
|
|
||||||
|
|
||||||
if(converged_) exit iteration
|
|
||||||
|
|
||||||
enddo iteration
|
|
||||||
|
|
||||||
broken = broken .or. .not. converged_
|
|
||||||
|
|
||||||
|
|
||||||
contains
|
|
||||||
|
|
||||||
!--------------------------------------------------------------------------------------------------
|
|
||||||
!> @brief calculate the damping for correction of state and dot state
|
|
||||||
!--------------------------------------------------------------------------------------------------
|
|
||||||
real(pReal) pure function damper(current,previous,previous2)
|
|
||||||
|
|
||||||
real(pReal), dimension(:), intent(in) ::&
|
|
||||||
current, previous, previous2
|
|
||||||
|
|
||||||
real(pReal) :: dot_prod12, dot_prod22
|
|
||||||
|
|
||||||
dot_prod12 = dot_product(current - previous, previous - previous2)
|
|
||||||
dot_prod22 = dot_product(previous - previous2, previous - previous2)
|
|
||||||
if ((dot_product(current,previous) < 0.0_pReal .or. dot_prod12 < 0.0_pReal) .and. dot_prod22 > 0.0_pReal) then
|
|
||||||
damper = 0.75_pReal + 0.25_pReal * tanh(2.0_pReal + 4.0_pReal * dot_prod12 / dot_prod22)
|
|
||||||
else
|
|
||||||
damper = 1.0_pReal
|
|
||||||
endif
|
|
||||||
|
|
||||||
end function damper
|
|
||||||
|
|
||||||
end function integrateThermalState
|
end function integrateThermalState
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
module subroutine thermal_initializeRestorationPoints(ph,me)
|
module subroutine thermal_initializeRestorationPoints(ph,me)
|
||||||
|
|
||||||
integer, intent(in) :: ph, me
|
integer, intent(in) :: ph, me
|
||||||
|
|
|
||||||
Loading…
Reference in New Issue