40 lines
2.2 KiB
Fortran
40 lines
2.2 KiB
Fortran
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!##############################################################
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MODULE prec
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!##############################################################
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implicit none
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! *** Precision of real and integer variables ***
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integer, parameter :: pReal = selected_real_kind(15,300) ! 15 significant digits, up to 1e+-300
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integer, parameter :: pInt = selected_int_kind(9) ! up to +- 1e9
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integer, parameter :: pLongInt = 8 ! should be 64bit
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type :: p_vec
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real(pReal), dimension(:), pointer :: p
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end type p_vec
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! *** Strain increment considered significant ***
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real(pReal), parameter :: relevantStrain = 1.0e-7_pReal
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! *** Numerical parameters ***
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integer(pInt), parameter :: ijaco = 1_pInt ! frequency of FEM Jacobi update
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real(pReal), parameter :: pert_Fg = 1.0e-6_pReal ! strain perturbation for FEM Jacobi
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integer(pInt), parameter :: nReg = 1_pInt ! regularization attempts for Jacobi inversion
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integer(pInt), parameter :: nHomog = 10_pInt ! homogenization loop limit
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integer(pInt), parameter :: nCryst = 20_pInt ! crystallite loop limit (only for debugging info, real loop limit is "subStepMin")
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integer(pInt), parameter :: nState = 10_pInt ! state loop limit
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integer(pInt), parameter :: nStress = 40_pInt ! stress loop limit
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real(pReal), parameter :: rTol_crystalliteState = 1.0e-5_pReal ! relative tolerance in crystallite state loop
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real(pReal), parameter :: rTol_crystalliteStress = 1.0e-6_pReal ! relative tolerance in crystallite stress loop
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real(pReal), parameter :: aTol_crystalliteStress = 1.0e-8_pReal ! absolute tolerance in crystallite stress loop
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!
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real(pReal), parameter :: resToler = 1.0e-4_pReal ! relative tolerance of residual in GIA iteration
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real(pReal), parameter :: resAbsol = 1.0e+2_pReal ! absolute tolerance of residual in GIA iteration (corresponds to ~1 Pa)
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real(pReal), parameter :: resBound = 1.0e+1_pReal ! relative maximum value (upper bound) for GIA residual
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integer(pInt), parameter :: NRiterMax = 24_pInt ! maximum number of GIA iteration
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real(pReal), parameter :: subStepMin = 1.0e-3_pReal ! minimum (relative) size of sub-step allowed during cutback
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END MODULE prec
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