2017-11-14 22:55:55 +05:30
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!--------------------------------------------------------------------------------------------------
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2018-02-15 08:43:10 +05:30
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!> @author Philip Eisenlohr, Michigan State University
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2017-11-14 22:55:55 +05:30
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!> @author Zhuowen Zhao, Michigan State University
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2018-11-25 15:44:09 +05:30
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!> @author Martin Diehl, Max-Planck-Institut für Eisenforschung GmbH
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!> @brief Phenomenological crystal plasticity using a power law formulation for the shear rates
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2019-01-07 01:48:35 +05:30
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!! and a Voce-type kinematic hardening rule
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2017-09-30 04:06:28 +05:30
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!--------------------------------------------------------------------------------------------------
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2021-01-27 01:22:48 +05:30
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submodule(phase:plastic) kinehardening
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2019-05-17 02:26:48 +05:30
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2020-02-01 02:07:18 +05:30
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type :: tParameters
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real(pReal) :: &
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2020-09-22 18:56:34 +05:30
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n = 1.0_pReal, & !< stress exponent for slip
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dot_gamma_0 = 1.0_pReal !< reference shear strain rate for slip
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2020-02-14 11:47:30 +05:30
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real(pReal), allocatable, dimension(:) :: &
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2020-09-22 18:56:34 +05:30
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h_0_f, & !< initial hardening rate of forward stress for each slip
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h_inf_f, & !< asymptotic hardening rate of forward stress for each slip
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h_0_b, & !< initial hardening rate of back stress for each slip
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h_inf_b, & !< asymptotic hardening rate of back stress for each slip
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xi_inf_f, &
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xi_inf_b
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2021-07-21 18:33:28 +05:30
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real(pReal), allocatable, dimension(:,:) :: &
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h_sl_sl !< slip resistance from slip activity
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2020-02-14 11:47:30 +05:30
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real(pReal), allocatable, dimension(:,:,:) :: &
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2020-03-16 01:46:28 +05:30
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P, &
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2021-07-21 19:59:57 +05:30
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P_nS_pos, &
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P_nS_neg
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2020-02-01 02:07:18 +05:30
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integer :: &
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2021-02-16 20:36:09 +05:30
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sum_N_sl
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2020-03-16 23:26:54 +05:30
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logical :: &
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nonSchmidActive = .false.
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2020-02-14 11:47:30 +05:30
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character(len=pStringLen), allocatable, dimension(:) :: &
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output
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2021-07-27 18:35:27 +05:30
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character(len=:), allocatable, dimension(:) :: &
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systems_sl
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2020-02-01 02:07:18 +05:30
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end type tParameters
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2020-02-14 11:47:30 +05:30
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2022-02-04 04:10:25 +05:30
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type :: tIndexDotState
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integer, dimension(2) :: &
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xi, &
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chi, &
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gamma
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end type tIndexDotState
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2020-02-01 02:07:18 +05:30
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type :: tKinehardeningState
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2021-07-23 10:39:54 +05:30
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real(pReal), pointer, dimension(:,:) :: &
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xi, & !< resistance against plastic slip
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chi, & !< back stress
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chi_0, & !< back stress at last switch of stress sense
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gamma, & !< accumulated (absolute) shear
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gamma_0, & !< accumulated shear at last switch of stress sense
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sgn_gamma !< sense of acting shear stress (-1 or +1)
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2020-02-01 02:07:18 +05:30
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end type tKinehardeningState
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2020-02-14 11:47:30 +05:30
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2019-01-13 21:33:49 +05:30
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!--------------------------------------------------------------------------------------------------
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! containers for parameters and state
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2020-02-01 02:07:18 +05:30
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type(tParameters), allocatable, dimension(:) :: param
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2022-02-04 04:10:25 +05:30
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type(tIndexDotState), allocatable, dimension(:) :: indexDotState
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type(tKinehardeningState), allocatable, dimension(:) :: state, deltaState
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2017-09-30 04:06:28 +05:30
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contains
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!--------------------------------------------------------------------------------------------------
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2020-02-14 11:47:30 +05:30
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!> @brief Perform module initialization.
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2017-09-30 04:06:28 +05:30
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!> @details reads in material parameters, allocates arrays, and does sanity checks
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!--------------------------------------------------------------------------------------------------
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2020-09-14 00:30:34 +05:30
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module function plastic_kinehardening_init() result(myPlasticity)
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2017-09-30 04:06:28 +05:30
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2020-08-15 19:32:10 +05:30
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logical, dimension(:), allocatable :: myPlasticity
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2020-02-01 02:07:18 +05:30
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integer :: &
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2021-02-16 20:36:09 +05:30
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ph, o, &
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2021-03-05 01:46:36 +05:30
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Nmembers, &
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2020-02-01 02:07:18 +05:30
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sizeState, sizeDeltaState, sizeDotState, &
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2020-07-02 00:52:05 +05:30
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startIndex, endIndex
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2020-03-16 23:26:54 +05:30
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integer, dimension(:), allocatable :: &
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2020-03-16 03:37:23 +05:30
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N_sl
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2020-03-16 23:26:54 +05:30
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real(pReal), dimension(:), allocatable :: &
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xi_0, & !< initial resistance against plastic flow
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a !< non-Schmid coefficients
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2020-02-01 02:07:18 +05:30
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character(len=pStringLen) :: &
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extmsg = ''
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2022-10-25 21:39:36 +05:30
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type(tDict), pointer :: &
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2020-08-15 19:32:10 +05:30
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phases, &
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phase, &
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2020-11-03 03:16:46 +05:30
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mech, &
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2020-08-15 19:32:10 +05:30
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pl
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2020-02-14 11:47:30 +05:30
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2020-08-15 19:32:10 +05:30
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myPlasticity = plastic_active('kinehardening')
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2021-02-14 05:20:42 +05:30
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if(count(myPlasticity) == 0) return
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2020-07-02 00:52:05 +05:30
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2021-11-15 23:05:44 +05:30
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print'(/,1x,a)', '<<<+- phase:mechanical:plastic:kinehardening init -+>>>'
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print'(/,a,i0)', ' # phases: ',count(myPlasticity); flush(IO_STDOUT)
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2021-02-13 17:37:35 +05:30
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2022-01-06 20:24:33 +05:30
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print'(/,1x,a)', 'J.A. Wollmershauser et al., International Journal of Fatigue 36:181–193, 2012'
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print'( 1x,a)', 'https://doi.org/10.1016/j.ijfatigue.2011.07.008'
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2021-02-13 17:37:35 +05:30
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2022-10-25 21:39:36 +05:30
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phases => config_material%get_dict('phase')
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2021-02-14 05:20:42 +05:30
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allocate(param(phases%length))
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2022-02-04 04:10:25 +05:30
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allocate(indexDotState(phases%length))
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2021-02-14 05:20:42 +05:30
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allocate(state(phases%length))
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allocate(deltaState(phases%length))
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2021-02-16 20:36:09 +05:30
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do ph = 1, phases%length
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2021-11-15 23:05:44 +05:30
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if (.not. myPlasticity(ph)) cycle
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2021-02-16 20:36:09 +05:30
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2022-02-04 04:10:25 +05:30
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associate(prm => param(ph), stt => state(ph), dlt => deltaState(ph), &
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idx_dot => indexDotState(ph))
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2021-02-16 20:36:09 +05:30
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2022-10-25 21:39:36 +05:30
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phase => phases%get_dict(ph)
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mech => phase%get_dict('mechanical')
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pl => mech%get_dict('plastic')
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2020-08-15 19:32:10 +05:30
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#if defined (__GFORTRAN__)
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2021-03-11 22:30:07 +05:30
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prm%output = output_as1dString(pl)
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2020-08-15 19:32:10 +05:30
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#else
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2021-03-11 22:30:07 +05:30
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prm%output = pl%get_as1dString('output',defaultVal=emptyStringArray)
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2020-08-15 19:32:10 +05:30
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#endif
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2020-03-15 00:33:57 +05:30
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2018-11-26 00:07:46 +05:30
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!--------------------------------------------------------------------------------------------------
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! slip related parameters
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2021-03-11 22:30:07 +05:30
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N_sl = pl%get_as1dInt('N_sl',defaultVal=emptyIntArray)
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2020-03-16 23:26:54 +05:30
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prm%sum_N_sl = sum(abs(N_sl))
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2020-03-16 01:46:28 +05:30
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slipActive: if (prm%sum_N_sl > 0) then
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2021-07-27 18:35:27 +05:30
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prm%systems_sl = lattice_labels_slip(N_sl,phase_lattice(ph))
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2021-07-21 19:16:38 +05:30
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prm%P = lattice_SchmidMatrix_slip(N_sl,phase_lattice(ph),phase_cOverA(ph))
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2020-02-14 11:47:30 +05:30
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2021-07-21 19:16:38 +05:30
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if (phase_lattice(ph) == 'cI') then
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2021-03-11 22:30:07 +05:30
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a = pl%get_as1dFloat('a_nonSchmid',defaultVal = emptyRealArray)
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2020-03-16 23:26:54 +05:30
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if(size(a) > 0) prm%nonSchmidActive = .true.
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2021-07-21 19:59:57 +05:30
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prm%P_nS_pos = lattice_nonSchmidMatrix(N_sl,a,+1)
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prm%P_nS_neg = lattice_nonSchmidMatrix(N_sl,a,-1)
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2020-02-01 02:07:18 +05:30
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else
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2021-07-21 19:59:57 +05:30
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prm%P_nS_pos = prm%P
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prm%P_nS_neg = prm%P
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2021-11-15 23:05:44 +05:30
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end if
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2021-07-21 19:16:38 +05:30
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prm%h_sl_sl = lattice_interaction_SlipBySlip(N_sl,pl%get_as1dFloat('h_sl-sl'), &
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phase_lattice(ph))
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2020-02-14 11:47:30 +05:30
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2021-03-11 22:30:07 +05:30
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xi_0 = pl%get_as1dFloat('xi_0', requiredSize=size(N_sl))
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prm%xi_inf_f = pl%get_as1dFloat('xi_inf_f', requiredSize=size(N_sl))
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prm%xi_inf_b = pl%get_as1dFloat('xi_inf_b', requiredSize=size(N_sl))
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prm%h_0_f = pl%get_as1dFloat('h_0_f', requiredSize=size(N_sl))
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prm%h_inf_f = pl%get_as1dFloat('h_inf_f', requiredSize=size(N_sl))
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prm%h_0_b = pl%get_as1dFloat('h_0_b', requiredSize=size(N_sl))
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prm%h_inf_b = pl%get_as1dFloat('h_inf_b', requiredSize=size(N_sl))
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2020-02-14 11:47:30 +05:30
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2020-09-22 18:56:34 +05:30
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prm%dot_gamma_0 = pl%get_asFloat('dot_gamma_0')
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prm%n = pl%get_asFloat('n')
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2020-02-14 11:47:30 +05:30
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2020-02-01 02:07:18 +05:30
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! expand: family => system
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2020-09-22 18:56:34 +05:30
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xi_0 = math_expand(xi_0, N_sl)
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prm%xi_inf_f = math_expand(prm%xi_inf_f, N_sl)
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prm%xi_inf_b = math_expand(prm%xi_inf_b, N_sl)
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prm%h_0_f = math_expand(prm%h_0_f, N_sl)
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prm%h_inf_f = math_expand(prm%h_inf_f, N_sl)
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prm%h_0_b = math_expand(prm%h_0_b, N_sl)
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prm%h_inf_b = math_expand(prm%h_inf_b, N_sl)
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2020-02-14 11:47:30 +05:30
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2019-01-07 01:48:35 +05:30
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!--------------------------------------------------------------------------------------------------
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! sanity checks
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2020-09-22 18:56:34 +05:30
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if ( prm%dot_gamma_0 <= 0.0_pReal) extmsg = trim(extmsg)//' dot_gamma_0'
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if ( prm%n <= 0.0_pReal) extmsg = trim(extmsg)//' n'
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if (any(xi_0 <= 0.0_pReal)) extmsg = trim(extmsg)//' xi_0'
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if (any(prm%xi_inf_f <= 0.0_pReal)) extmsg = trim(extmsg)//' xi_inf_f'
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if (any(prm%xi_inf_b <= 0.0_pReal)) extmsg = trim(extmsg)//' xi_inf_b'
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2020-02-14 11:47:30 +05:30
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2020-03-16 23:26:54 +05:30
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else slipActive
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xi_0 = emptyRealArray
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2020-09-22 18:56:34 +05:30
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allocate(prm%xi_inf_f,prm%xi_inf_b,prm%h_0_f,prm%h_inf_f,prm%h_0_b,prm%h_inf_b,source=emptyRealArray)
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2021-07-21 18:33:28 +05:30
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allocate(prm%h_sl_sl(0,0))
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2021-11-15 23:05:44 +05:30
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end if slipActive
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2020-02-14 11:47:30 +05:30
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2018-11-26 04:44:27 +05:30
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!--------------------------------------------------------------------------------------------------
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! allocate state arrays
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2021-04-06 15:08:44 +05:30
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Nmembers = count(material_phaseID == ph)
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2021-07-23 10:39:54 +05:30
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sizeDotState = size(['xi ','chi ', 'gamma']) * prm%sum_N_sl
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sizeDeltaState = size(['sgn_gamma', 'chi_0 ', 'gamma_0 ']) * prm%sum_N_sl
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2020-02-01 02:07:18 +05:30
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sizeState = sizeDotState + sizeDeltaState
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2020-02-14 11:47:30 +05:30
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2021-03-05 01:46:36 +05:30
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call phase_allocateState(plasticState(ph),Nmembers,sizeState,sizeDotState,sizeDeltaState)
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2022-02-04 04:10:25 +05:30
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deallocate(plasticState(ph)%dotState) ! ToDo: remove dotState completely
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2020-02-14 11:47:30 +05:30
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2019-01-07 01:48:35 +05:30
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!--------------------------------------------------------------------------------------------------
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2020-03-16 03:37:23 +05:30
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! state aliases and initialization
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2020-02-01 02:07:18 +05:30
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startIndex = 1
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2020-03-16 01:46:28 +05:30
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endIndex = prm%sum_N_sl
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2022-02-04 04:10:25 +05:30
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idx_dot%xi = [startIndex,endIndex]
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stt%xi => plasticState(ph)%state(startIndex:endIndex,:)
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2021-07-23 10:39:54 +05:30
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stt%xi = spread(xi_0, 2, Nmembers)
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2021-02-16 20:36:09 +05:30
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plasticState(ph)%atol(startIndex:endIndex) = pl%get_asFloat('atol_xi',defaultVal=1.0_pReal)
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if(any(plasticState(ph)%atol(startIndex:endIndex) < 0.0_pReal)) extmsg = trim(extmsg)//' atol_xi'
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2020-02-14 11:47:30 +05:30
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2020-02-01 02:07:18 +05:30
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startIndex = endIndex + 1
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2020-03-16 01:46:28 +05:30
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endIndex = endIndex + prm%sum_N_sl
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2022-02-04 04:10:25 +05:30
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idx_dot%chi = [startIndex,endIndex]
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stt%chi => plasticState(ph)%state(startIndex:endIndex,:)
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2021-02-16 20:36:09 +05:30
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plasticState(ph)%atol(startIndex:endIndex) = pl%get_asFloat('atol_xi',defaultVal=1.0_pReal)
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2020-02-14 11:47:30 +05:30
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2020-02-01 02:07:18 +05:30
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startIndex = endIndex + 1
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2020-03-16 01:46:28 +05:30
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endIndex = endIndex + prm%sum_N_sl
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2022-02-04 04:10:25 +05:30
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idx_dot%gamma = [startIndex,endIndex]
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stt%gamma => plasticState(ph)%state(startIndex:endIndex,:)
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2021-02-16 20:36:09 +05:30
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plasticState(ph)%atol(startIndex:endIndex) = pl%get_asFloat('atol_gamma',defaultVal=1.0e-6_pReal)
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if(any(plasticState(ph)%atol(startIndex:endIndex) < 0.0_pReal)) extmsg = trim(extmsg)//' atol_gamma'
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2020-02-14 11:47:30 +05:30
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2021-02-16 20:36:09 +05:30
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|
o = plasticState(ph)%offsetDeltaState
|
2020-02-01 02:07:18 +05:30
|
|
|
|
startIndex = endIndex + 1
|
2020-03-16 01:46:28 +05:30
|
|
|
|
endIndex = endIndex + prm%sum_N_sl
|
2021-07-23 10:39:54 +05:30
|
|
|
|
stt%sgn_gamma => plasticState(ph)%state (startIndex :endIndex ,:)
|
|
|
|
|
dlt%sgn_gamma => plasticState(ph)%deltaState(startIndex-o:endIndex-o,:)
|
2020-02-14 11:47:30 +05:30
|
|
|
|
|
2020-02-01 02:07:18 +05:30
|
|
|
|
startIndex = endIndex + 1
|
2020-03-16 01:46:28 +05:30
|
|
|
|
endIndex = endIndex + prm%sum_N_sl
|
2021-07-23 10:39:54 +05:30
|
|
|
|
stt%chi_0 => plasticState(ph)%state (startIndex :endIndex ,:)
|
|
|
|
|
dlt%chi_0 => plasticState(ph)%deltaState(startIndex-o:endIndex-o,:)
|
2020-02-14 11:47:30 +05:30
|
|
|
|
|
2020-02-01 02:07:18 +05:30
|
|
|
|
startIndex = endIndex + 1
|
2020-03-16 01:46:28 +05:30
|
|
|
|
endIndex = endIndex + prm%sum_N_sl
|
2021-07-23 10:39:54 +05:30
|
|
|
|
stt%gamma_0 => plasticState(ph)%state (startIndex :endIndex ,:)
|
|
|
|
|
dlt%gamma_0 => plasticState(ph)%deltaState(startIndex-o:endIndex-o,:)
|
2020-02-14 11:47:30 +05:30
|
|
|
|
|
2020-02-01 02:07:18 +05:30
|
|
|
|
end associate
|
2020-02-14 11:47:30 +05:30
|
|
|
|
|
2020-03-15 00:33:57 +05:30
|
|
|
|
!--------------------------------------------------------------------------------------------------
|
|
|
|
|
! exit if any parameter is out of range
|
2022-05-27 03:54:40 +05:30
|
|
|
|
if (extmsg /= '') call IO_error(211,ext_msg=trim(extmsg))
|
2020-03-15 00:33:57 +05:30
|
|
|
|
|
2021-11-15 23:05:44 +05:30
|
|
|
|
end do
|
2017-09-30 04:06:28 +05:30
|
|
|
|
|
2020-03-15 00:33:57 +05:30
|
|
|
|
|
2020-08-15 19:32:10 +05:30
|
|
|
|
end function plastic_kinehardening_init
|
2017-09-30 04:06:28 +05:30
|
|
|
|
|
|
|
|
|
|
|
|
|
|
!--------------------------------------------------------------------------------------------------
|
2020-02-14 11:47:30 +05:30
|
|
|
|
!> @brief Calculate plastic velocity gradient and its tangent.
|
2017-09-30 04:06:28 +05:30
|
|
|
|
!--------------------------------------------------------------------------------------------------
|
2021-04-25 11:36:52 +05:30
|
|
|
|
pure module subroutine kinehardening_LpAndItsTangent(Lp,dLp_dMp,Mp,ph,en)
|
2019-01-07 01:48:35 +05:30
|
|
|
|
|
2020-02-01 02:07:18 +05:30
|
|
|
|
real(pReal), dimension(3,3), intent(out) :: &
|
|
|
|
|
Lp !< plastic velocity gradient
|
|
|
|
|
real(pReal), dimension(3,3,3,3), intent(out) :: &
|
|
|
|
|
dLp_dMp !< derivative of Lp with respect to the Mandel stress
|
2020-02-14 11:47:30 +05:30
|
|
|
|
|
2020-02-01 02:07:18 +05:30
|
|
|
|
real(pReal), dimension(3,3), intent(in) :: &
|
|
|
|
|
Mp !< Mandel stress
|
|
|
|
|
integer, intent(in) :: &
|
2021-01-27 03:11:41 +05:30
|
|
|
|
ph, &
|
2021-04-25 11:36:52 +05:30
|
|
|
|
en
|
2020-02-14 11:47:30 +05:30
|
|
|
|
|
2020-02-01 02:07:18 +05:30
|
|
|
|
integer :: &
|
|
|
|
|
i,k,l,m,n
|
2021-02-14 05:20:42 +05:30
|
|
|
|
real(pReal), dimension(param(ph)%sum_N_sl) :: &
|
2021-07-21 20:04:33 +05:30
|
|
|
|
dot_gamma_pos,dot_gamma_neg, &
|
|
|
|
|
ddot_gamma_dtau_pos,ddot_gamma_dtau_neg
|
2020-02-14 11:47:30 +05:30
|
|
|
|
|
2020-02-01 02:07:18 +05:30
|
|
|
|
Lp = 0.0_pReal
|
|
|
|
|
dLp_dMp = 0.0_pReal
|
2020-02-14 11:47:30 +05:30
|
|
|
|
|
2021-02-14 05:20:42 +05:30
|
|
|
|
associate(prm => param(ph))
|
2020-02-14 11:47:30 +05:30
|
|
|
|
|
2021-07-21 20:04:33 +05:30
|
|
|
|
call kinetics(Mp,ph,en,dot_gamma_pos,dot_gamma_neg,ddot_gamma_dtau_pos,ddot_gamma_dtau_neg)
|
2020-02-14 11:47:30 +05:30
|
|
|
|
|
2020-03-16 01:46:28 +05:30
|
|
|
|
do i = 1, prm%sum_N_sl
|
2021-07-21 20:04:33 +05:30
|
|
|
|
Lp = Lp + (dot_gamma_pos(i)+dot_gamma_neg(i))*prm%P(1:3,1:3,i)
|
2020-02-01 02:07:18 +05:30
|
|
|
|
forall (k=1:3,l=1:3,m=1:3,n=1:3) &
|
|
|
|
|
dLp_dMp(k,l,m,n) = dLp_dMp(k,l,m,n) &
|
2021-07-21 20:04:33 +05:30
|
|
|
|
+ ddot_gamma_dtau_pos(i) * prm%P(k,l,i) * prm%P_nS_pos(m,n,i) &
|
|
|
|
|
+ ddot_gamma_dtau_neg(i) * prm%P(k,l,i) * prm%P_nS_neg(m,n,i)
|
2021-11-15 23:05:44 +05:30
|
|
|
|
end do
|
2020-02-14 11:47:30 +05:30
|
|
|
|
|
2020-02-01 02:07:18 +05:30
|
|
|
|
end associate
|
2017-11-14 22:55:55 +05:30
|
|
|
|
|
2021-01-26 12:03:04 +05:30
|
|
|
|
end subroutine kinehardening_LpAndItsTangent
|
2017-09-30 04:06:28 +05:30
|
|
|
|
|
2018-12-22 03:11:39 +05:30
|
|
|
|
|
2019-01-07 12:06:11 +05:30
|
|
|
|
!--------------------------------------------------------------------------------------------------
|
2020-02-14 11:47:30 +05:30
|
|
|
|
!> @brief Calculate the rate of change of microstructure.
|
2019-01-07 12:06:11 +05:30
|
|
|
|
!--------------------------------------------------------------------------------------------------
|
2022-02-04 04:10:25 +05:30
|
|
|
|
module function plastic_kinehardening_dotState(Mp,ph,en) result(dotState)
|
2019-01-07 12:06:11 +05:30
|
|
|
|
|
2020-02-01 02:07:18 +05:30
|
|
|
|
real(pReal), dimension(3,3), intent(in) :: &
|
|
|
|
|
Mp !< Mandel stress
|
|
|
|
|
integer, intent(in) :: &
|
2021-01-27 03:11:41 +05:30
|
|
|
|
ph, &
|
2021-04-25 11:36:52 +05:30
|
|
|
|
en
|
2022-02-04 04:10:25 +05:30
|
|
|
|
real(pReal), dimension(plasticState(ph)%sizeDotState) :: &
|
|
|
|
|
dotState
|
2020-02-14 11:47:30 +05:30
|
|
|
|
|
2020-02-01 02:07:18 +05:30
|
|
|
|
real(pReal) :: &
|
|
|
|
|
sumGamma
|
2021-02-14 05:20:42 +05:30
|
|
|
|
real(pReal), dimension(param(ph)%sum_N_sl) :: &
|
2021-07-21 20:04:33 +05:30
|
|
|
|
dot_gamma_pos,dot_gamma_neg
|
2020-02-14 11:47:30 +05:30
|
|
|
|
|
|
|
|
|
|
2022-02-04 04:10:25 +05:30
|
|
|
|
associate(prm => param(ph), stt => state(ph), &
|
|
|
|
|
dot_xi => dotState(IndexDotState(ph)%xi(1):IndexDotState(ph)%xi(2)),&
|
|
|
|
|
dot_chi => dotState(IndexDotState(ph)%chi(1):IndexDotState(ph)%chi(2)),&
|
|
|
|
|
dot_gamma => dotState(IndexDotState(ph)%gamma(1):IndexDotState(ph)%gamma(2)))
|
2020-02-14 11:47:30 +05:30
|
|
|
|
|
2021-07-23 03:39:51 +05:30
|
|
|
|
call kinetics(Mp,ph,en,dot_gamma_pos,dot_gamma_neg)
|
2022-02-04 04:10:25 +05:30
|
|
|
|
dot_gamma = abs(dot_gamma_pos+dot_gamma_neg)
|
2021-07-23 10:39:54 +05:30
|
|
|
|
sumGamma = sum(stt%gamma(:,en))
|
2020-02-14 11:47:30 +05:30
|
|
|
|
|
|
|
|
|
|
2022-02-04 04:10:25 +05:30
|
|
|
|
dot_xi = matmul(prm%h_sl_sl,dot_gamma) &
|
2021-07-23 03:39:51 +05:30
|
|
|
|
* ( prm%h_inf_f &
|
|
|
|
|
+ (prm%h_0_f - prm%h_inf_f + prm%h_0_f*prm%h_inf_f*sumGamma/prm%xi_inf_f) &
|
|
|
|
|
* exp(-sumGamma*prm%h_0_f/prm%xi_inf_f) &
|
|
|
|
|
)
|
2020-02-14 11:47:30 +05:30
|
|
|
|
|
2022-02-04 04:10:25 +05:30
|
|
|
|
dot_chi = stt%sgn_gamma(:,en)*dot_gamma &
|
|
|
|
|
* ( prm%h_inf_b &
|
|
|
|
|
+ (prm%h_0_b - prm%h_inf_b &
|
2021-07-23 10:39:54 +05:30
|
|
|
|
+ prm%h_0_b*prm%h_inf_b/(prm%xi_inf_b+stt%chi_0(:,en))*(stt%gamma(:,en)-stt%gamma_0(:,en))&
|
|
|
|
|
) *exp(-(stt%gamma(:,en)-stt%gamma_0(:,en)) *prm%h_0_b/(prm%xi_inf_b+stt%chi_0(:,en))) &
|
2021-07-23 03:39:51 +05:30
|
|
|
|
)
|
2020-02-14 11:47:30 +05:30
|
|
|
|
|
2020-02-01 02:07:18 +05:30
|
|
|
|
end associate
|
2019-01-07 12:06:11 +05:30
|
|
|
|
|
2022-02-04 04:10:25 +05:30
|
|
|
|
end function plastic_kinehardening_dotState
|
2019-01-07 12:06:11 +05:30
|
|
|
|
|
|
|
|
|
|
2017-09-30 04:06:28 +05:30
|
|
|
|
!--------------------------------------------------------------------------------------------------
|
2020-02-14 11:47:30 +05:30
|
|
|
|
!> @brief Calculate (instantaneous) incremental change of microstructure.
|
2017-09-30 04:06:28 +05:30
|
|
|
|
!--------------------------------------------------------------------------------------------------
|
2021-04-25 11:36:52 +05:30
|
|
|
|
module subroutine plastic_kinehardening_deltaState(Mp,ph,en)
|
2018-12-30 20:09:48 +05:30
|
|
|
|
|
2020-02-01 02:07:18 +05:30
|
|
|
|
real(pReal), dimension(3,3), intent(in) :: &
|
|
|
|
|
Mp !< Mandel stress
|
|
|
|
|
integer, intent(in) :: &
|
2021-02-14 05:20:42 +05:30
|
|
|
|
ph, &
|
2021-04-25 11:36:52 +05:30
|
|
|
|
en
|
2020-02-14 11:47:30 +05:30
|
|
|
|
|
2021-02-14 05:20:42 +05:30
|
|
|
|
real(pReal), dimension(param(ph)%sum_N_sl) :: &
|
2021-07-21 20:04:33 +05:30
|
|
|
|
dot_gamma_pos,dot_gamma_neg, &
|
2021-07-23 10:39:54 +05:30
|
|
|
|
sgn_gamma
|
2020-02-14 11:47:30 +05:30
|
|
|
|
|
|
|
|
|
|
2021-07-23 10:39:54 +05:30
|
|
|
|
associate(prm => param(ph), stt => state(ph), dlt => deltaState(ph))
|
2020-02-14 11:47:30 +05:30
|
|
|
|
|
2021-07-23 10:39:54 +05:30
|
|
|
|
call kinetics(Mp,ph,en,dot_gamma_pos,dot_gamma_neg)
|
|
|
|
|
sgn_gamma = merge(state(ph)%sgn_gamma(:,en), &
|
|
|
|
|
sign(1.0_pReal,dot_gamma_pos+dot_gamma_neg), &
|
|
|
|
|
dEq0(dot_gamma_pos+dot_gamma_neg,1e-10_pReal))
|
|
|
|
|
|
|
|
|
|
where(dNeq(sgn_gamma,stt%sgn_gamma(:,en),0.1_pReal)) ! ToDo sgn_gamma*stt%sgn_gamma(:,en)<0
|
|
|
|
|
dlt%sgn_gamma (:,en) = sgn_gamma - stt%sgn_gamma(:,en)
|
|
|
|
|
dlt%chi_0 (:,en) = abs(stt%chi(:,en)) - stt%chi_0(:,en)
|
|
|
|
|
dlt%gamma_0(:,en) = stt%gamma(:,en) - stt%gamma_0(:,en)
|
|
|
|
|
else where
|
|
|
|
|
dlt%sgn_gamma (:,en) = 0.0_pReal
|
|
|
|
|
dlt%chi_0 (:,en) = 0.0_pReal
|
|
|
|
|
dlt%gamma_0(:,en) = 0.0_pReal
|
|
|
|
|
end where
|
2020-02-14 11:47:30 +05:30
|
|
|
|
|
2020-02-01 02:07:18 +05:30
|
|
|
|
end associate
|
2017-09-30 04:06:28 +05:30
|
|
|
|
|
|
|
|
|
end subroutine plastic_kinehardening_deltaState
|
|
|
|
|
|
|
|
|
|
|
2019-03-10 01:13:31 +05:30
|
|
|
|
!--------------------------------------------------------------------------------------------------
|
2020-02-14 11:47:30 +05:30
|
|
|
|
!> @brief Write results to HDF5 output file.
|
2019-03-10 01:13:31 +05:30
|
|
|
|
!--------------------------------------------------------------------------------------------------
|
2021-02-14 05:20:42 +05:30
|
|
|
|
module subroutine plastic_kinehardening_results(ph,group)
|
2019-03-10 01:13:31 +05:30
|
|
|
|
|
2021-02-14 05:20:42 +05:30
|
|
|
|
integer, intent(in) :: ph
|
2019-12-03 02:08:41 +05:30
|
|
|
|
character(len=*), intent(in) :: group
|
2020-02-14 11:47:30 +05:30
|
|
|
|
|
2021-07-27 18:35:27 +05:30
|
|
|
|
integer :: ou
|
|
|
|
|
|
2019-03-10 01:13:31 +05:30
|
|
|
|
|
2021-02-14 05:20:42 +05:30
|
|
|
|
associate(prm => param(ph), stt => state(ph))
|
2021-07-27 18:35:27 +05:30
|
|
|
|
|
|
|
|
|
do ou = 1,size(prm%output)
|
|
|
|
|
|
|
|
|
|
select case(trim(prm%output(ou)))
|
|
|
|
|
|
|
|
|
|
case ('xi')
|
2021-08-08 01:32:44 +05:30
|
|
|
|
call results_writeDataset(stt%xi,group,trim(prm%output(ou)), &
|
|
|
|
|
'resistance against plastic slip','Pa',prm%systems_sl)
|
2021-07-27 18:35:27 +05:30
|
|
|
|
case ('chi')
|
2021-08-08 01:32:44 +05:30
|
|
|
|
call results_writeDataset(stt%chi,group,trim(prm%output(ou)), &
|
|
|
|
|
'back stress','Pa',prm%systems_sl)
|
2021-07-27 18:35:27 +05:30
|
|
|
|
case ('sgn(gamma)')
|
2021-08-08 01:32:44 +05:30
|
|
|
|
call results_writeDataset(int(stt%sgn_gamma),group,trim(prm%output(ou)), &
|
|
|
|
|
'sense of shear','1',prm%systems_sl)
|
2021-07-27 18:35:27 +05:30
|
|
|
|
case ('chi_0')
|
2021-08-08 01:32:44 +05:30
|
|
|
|
call results_writeDataset(stt%chi_0,group,trim(prm%output(ou)), &
|
|
|
|
|
'back stress at last switch of stress sense','Pa',prm%systems_sl)
|
2021-07-27 18:35:27 +05:30
|
|
|
|
case ('gamma_0')
|
2021-08-08 01:32:44 +05:30
|
|
|
|
call results_writeDataset(stt%gamma_0,group,trim(prm%output(ou)), &
|
|
|
|
|
'plastic shear at last switch of stress sense','1',prm%systems_sl)
|
2021-07-27 18:35:27 +05:30
|
|
|
|
case ('gamma')
|
2021-08-08 01:32:44 +05:30
|
|
|
|
call results_writeDataset(stt%gamma,group,trim(prm%output(ou)), &
|
|
|
|
|
'plastic shear','1',prm%systems_sl)
|
2021-07-27 18:35:27 +05:30
|
|
|
|
end select
|
|
|
|
|
|
2021-11-15 23:05:44 +05:30
|
|
|
|
end do
|
2021-07-27 18:35:27 +05:30
|
|
|
|
|
2019-03-10 01:13:31 +05:30
|
|
|
|
end associate
|
|
|
|
|
|
|
|
|
|
end subroutine plastic_kinehardening_results
|
|
|
|
|
|
|
|
|
|
|
2018-11-26 11:40:43 +05:30
|
|
|
|
!--------------------------------------------------------------------------------------------------
|
2020-02-14 11:47:30 +05:30
|
|
|
|
!> @brief Calculate shear rates on slip systems and their derivatives with respect to resolved
|
|
|
|
|
! stress.
|
|
|
|
|
!> @details: Derivatives are calculated only optionally.
|
2019-01-07 01:48:35 +05:30
|
|
|
|
! NOTE: Against the common convention, the result (i.e. intent(out)) variables are the last to
|
2020-02-14 11:47:30 +05:30
|
|
|
|
! have the optional arguments at the end.
|
2018-11-26 11:40:43 +05:30
|
|
|
|
!--------------------------------------------------------------------------------------------------
|
2021-04-25 11:36:52 +05:30
|
|
|
|
pure subroutine kinetics(Mp,ph,en, &
|
2021-07-21 20:04:33 +05:30
|
|
|
|
dot_gamma_pos,dot_gamma_neg,ddot_gamma_dtau_pos,ddot_gamma_dtau_neg)
|
2018-11-26 11:40:43 +05:30
|
|
|
|
|
2020-02-01 02:07:18 +05:30
|
|
|
|
real(pReal), dimension(3,3), intent(in) :: &
|
|
|
|
|
Mp !< Mandel stress
|
2021-07-23 10:39:54 +05:30
|
|
|
|
integer, intent(in) :: &
|
2021-02-14 05:20:42 +05:30
|
|
|
|
ph, &
|
2021-04-25 11:36:52 +05:30
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en
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2020-02-14 11:47:30 +05:30
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2021-02-14 05:20:42 +05:30
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real(pReal), intent(out), dimension(param(ph)%sum_N_sl) :: &
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2021-07-21 20:04:33 +05:30
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dot_gamma_pos, &
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dot_gamma_neg
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2021-07-23 10:39:54 +05:30
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real(pReal), intent(out), dimension(param(ph)%sum_N_sl), optional :: &
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2021-07-21 20:04:33 +05:30
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ddot_gamma_dtau_pos, &
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ddot_gamma_dtau_neg
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2020-02-14 11:47:30 +05:30
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2021-02-14 05:20:42 +05:30
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real(pReal), dimension(param(ph)%sum_N_sl) :: &
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2020-02-01 02:07:18 +05:30
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tau_pos, &
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tau_neg
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integer :: i
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2020-02-14 11:47:30 +05:30
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2021-07-23 03:39:51 +05:30
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associate(prm => param(ph), stt => state(ph))
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2020-02-14 11:47:30 +05:30
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2021-07-23 03:39:51 +05:30
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do i = 1, prm%sum_N_sl
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2021-07-23 10:39:54 +05:30
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tau_pos(i) = math_tensordot(Mp,prm%P_nS_pos(1:3,1:3,i)) - stt%chi(i,en)
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tau_neg(i) = merge(math_tensordot(Mp,prm%P_nS_neg(1:3,1:3,i)) - stt%chi(i,en), &
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2021-07-23 03:39:51 +05:30
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0.0_pReal, prm%nonSchmidActive)
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2021-11-15 23:05:44 +05:30
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end do
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2020-02-14 11:47:30 +05:30
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2021-07-23 03:39:51 +05:30
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where(dNeq0(tau_pos))
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dot_gamma_pos = prm%dot_gamma_0 * merge(0.5_pReal,1.0_pReal, prm%nonSchmidActive) & ! 1/2 if non-Schmid active
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2021-07-23 10:39:54 +05:30
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* sign(abs(tau_pos/stt%xi(:,en))**prm%n, tau_pos)
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2020-02-01 02:07:18 +05:30
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else where
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2021-07-23 03:39:51 +05:30
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dot_gamma_pos = 0.0_pReal
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2020-02-01 02:07:18 +05:30
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end where
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2021-07-23 03:39:51 +05:30
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where(dNeq0(tau_neg))
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dot_gamma_neg = prm%dot_gamma_0 * 0.5_pReal & ! only used if non-Schmid active, always 1/2
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2021-07-23 10:39:54 +05:30
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* sign(abs(tau_neg/stt%xi(:,en))**prm%n, tau_neg)
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2020-02-01 02:07:18 +05:30
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else where
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2021-07-23 03:39:51 +05:30
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dot_gamma_neg = 0.0_pReal
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2020-02-01 02:07:18 +05:30
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end where
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2021-07-23 03:39:51 +05:30
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if (present(ddot_gamma_dtau_pos)) then
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where(dNeq0(dot_gamma_pos))
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ddot_gamma_dtau_pos = dot_gamma_pos*prm%n/tau_pos
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else where
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ddot_gamma_dtau_pos = 0.0_pReal
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end where
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2021-11-15 23:05:44 +05:30
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end if
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2021-07-23 03:39:51 +05:30
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if (present(ddot_gamma_dtau_neg)) then
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where(dNeq0(dot_gamma_neg))
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ddot_gamma_dtau_neg = dot_gamma_neg*prm%n/tau_neg
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else where
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ddot_gamma_dtau_neg = 0.0_pReal
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end where
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2021-11-15 23:05:44 +05:30
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end if
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2021-07-23 03:39:51 +05:30
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2020-02-01 02:07:18 +05:30
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end associate
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2018-11-26 11:40:43 +05:30
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end subroutine kinetics
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2021-01-26 05:41:32 +05:30
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end submodule kinehardening
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