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DAMASK_EICMD/code/config/numerics.config

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added version information to all files do NOT edit text like this: $Id: constitutive_phenopowerlaw.f90 406 2009-08-31 14:13:10Z MPIE\f.roters $
2009-08-31 20:39:15 +05:30
### $Id$ ###
numerics.config is now optional; if this file does not exist in the working directory, standard values from numerics.f90 are used; either way the output file tells which values were taken. added some output to the init subroutines of debug.f90, FEsolving.f90, lattice.f90, material.f90 and mesh.f90.
2009-06-18 19:58:02 +05:30
### numerical parameters ###
added a new module called numerics.f90 which reads in all numerical "parameters" from the file numerics.config (also being added). From now on this file has to be located in the working directory of the FEM-model and has to contain all necessary parameters.
2009-06-15 18:41:21 +05:30
added missing space in makefile, made removing of old files in Makefile silent and updated files for tests to current versions
2012-05-23 23:38:34 +05:30
relevantStrain 1.0e-7 # strain increment considered significant (used by crystallite to determine whether strain inc is considered significant)
defgradTolerance 1.0e-7 # deviation of deformation gradient that is still allowed (used by CPFEM to determine outdated ffn1)
iJacoStiffness 1 # frequency of stiffness update
iJacoLpresiduum 1 # frequency of Jacobian update of residuum in Lp
pert_Fg 1.0e-7 # deformation gradient perturbation for grain tangent
pert_method 1 # perturbation method (1 = forward, 2 = backward or 3 = central)
integrator 1 # integration method (1 = Fixed Point Iteration, 2 = Euler, 3 = Adaptive Euler, 4 = classical 4th order Runge-Kutta, 5 = 5th order Runge-Kutta Cash-Karp)
integratorStiffness 1 # integration method used for stiffness (1 = Fixed Point Iteration, 2 = Euler, 3 = Adaptive Euler, 4 = classical 4th order Runge-Kutta, 5 = 5th order Runge-Kutta Cash-Karp)
analyticJaco 0 # use analytic Jacobian or perturbation (0 = perturbations, 1 = analytic)
introduced a flexibility in cut-backing scheme in homogenization.f90 and in crystallite.f90: (1) subStepSizeHomog and subStepSizeCryst := size of substep when cut-back is applied (initially was hard-coded). (2) stepIncreaseHomog and stepIncreaseCryst := step increase when calculation for substep converge (was also hardcoded). introduced a possibility to choose different finite difference scheme, i.e., forward-, backward- and central-difference, for computing grain numerical tangent. note that central-difference scheme will slow down the computation significantly. please use it only if necessary. parameters to set these new features have been included in numerics.f90 and numerics.config, whereas corresponding error messages have been introduced in the IO.f90
2009-11-10 19:06:27 +05:30
## crystallite numerical parameters ##
added missing space in makefile, made removing of old files in Makefile silent and updated files for tests to current versions
2012-05-23 23:38:34 +05:30
nCryst 20 # crystallite loop limit (only for debugging info, loop limit is determined by "subStepMinCryst")
subStepMinCryst 1.0e-3 # minimum (relative) size of sub-step allowed during cutback in crystallite
subStepSizeCryst 0.25 # size of substep when cutback introduced in crystallite (value between 0 and 1)
stepIncreaseCryst 1.5 # increase of next substep size when previous substep converged in crystallite (value higher than 1)
nState 10 # state loop limit
nStress 40 # stress loop limit
rTol_crystalliteState 1.0e-6 # relative tolerance in crystallite state loop (abs tol provided by constitutive law)
rTol_crystalliteStress 1.0e-6 # relative tolerance in crystallite stress loop (Lp residuum)
aTol_crystalliteStress 1.0e-8 # absolute tolerance in crystallite stress loop (Lp residuum!)
rTol_crystalliteTemperature 1.0e-6 # relative tolerance in crystallite state/temperature loop
numerics.config is now optional; if this file does not exist in the working directory, standard values from numerics.f90 are used; either way the output file tells which values were taken. added some output to the init subroutines of debug.f90, FEsolving.f90, lattice.f90, material.f90 and mesh.f90.
2009-06-18 19:58:02 +05:30
introduced a flexibility in cut-backing scheme in homogenization.f90 and in crystallite.f90: (1) subStepSizeHomog and subStepSizeCryst := size of substep when cut-back is applied (initially was hard-coded). (2) stepIncreaseHomog and stepIncreaseCryst := step increase when calculation for substep converge (was also hardcoded). introduced a possibility to choose different finite difference scheme, i.e., forward-, backward- and central-difference, for computing grain numerical tangent. note that central-difference scheme will slow down the computation significantly. please use it only if necessary. parameters to set these new features have been included in numerics.f90 and numerics.config, whereas corresponding error messages have been introduced in the IO.f90
2009-11-10 19:06:27 +05:30
## homogenization numerical parameters ##
added missing space in makefile, made removing of old files in Makefile silent and updated files for tests to current versions
2012-05-23 23:38:34 +05:30
nHomog 20 # homogenization loop limit (only for debugging info, loop limit is determined by "subStepMinHomog")
subStepMinHomog 1.0e-3 # minimum (relative) size of sub-step allowed during cutback in homogenization
subStepSizeHomog 0.25 # size of substep when cutback introduced in homogenization (value between 0 and 1)
stepIncreaseHomog 1.5 # increase of next substep size when previous substep converged in homogenization (value higher than 1)
nMPstate 10 # materialpoint state loop limit
introduced a flexibility in cut-backing scheme in homogenization.f90 and in crystallite.f90: (1) subStepSizeHomog and subStepSizeCryst := size of substep when cut-back is applied (initially was hard-coded). (2) stepIncreaseHomog and stepIncreaseCryst := step increase when calculation for substep converge (was also hardcoded). introduced a possibility to choose different finite difference scheme, i.e., forward-, backward- and central-difference, for computing grain numerical tangent. note that central-difference scheme will slow down the computation significantly. please use it only if necessary. parameters to set these new features have been included in numerics.f90 and numerics.config, whereas corresponding error messages have been introduced in the IO.f90
2009-11-10 19:06:27 +05:30
## RGC scheme numerical parameters ##
added missing space in makefile, made removing of old files in Makefile silent and updated files for tests to current versions
2012-05-23 23:38:34 +05:30
aTol_RGC 1.0e+4 # absolute tolerance of RGC residuum (in Pa)
rTol_RGC 1.0e-3 # relative ...
aMax_RGC 1.0e+10 # absolute upper-limit of RGC residuum (in Pa)
rMax_RGC 1.0e+2 # relative ...
perturbPenalty_RGC 1.0e-7 # perturbation for computing penalty tangent
maxRelaxation_RGC 1.0e+0 # threshold of maximum relaxation vector increment (if exceed this then cutback)
introduced a flexibility in cut-backing scheme in homogenization.f90 and in crystallite.f90: (1) subStepSizeHomog and subStepSizeCryst := size of substep when cut-back is applied (initially was hard-coded). (2) stepIncreaseHomog and stepIncreaseCryst := step increase when calculation for substep converge (was also hardcoded). introduced a possibility to choose different finite difference scheme, i.e., forward-, backward- and central-difference, for computing grain numerical tangent. note that central-difference scheme will slow down the computation significantly. please use it only if necessary. parameters to set these new features have been included in numerics.f90 and numerics.config, whereas corresponding error messages have been introduced in the IO.f90
2009-11-10 19:06:27 +05:30
added missing space in makefile, made removing of old files in Makefile silent and updated files for tests to current versions
2012-05-23 23:38:34 +05:30
relevantMismatch_RGC 1.0e-5 # minimum threshold of mismatch
forgotten: the change in the input config
2010-03-24 18:58:46 +05:30
added missing space in makefile, made removing of old files in Makefile silent and updated files for tests to current versions
2012-05-23 23:38:34 +05:30
viscosityPower_RGC 1.0e+0 # power (sensitivity rate) of numerical viscosity in RGC scheme
viscosityModulus_RGC 0.0e+0 # stress modulus of RGC numerical viscosity (zero = without numerical viscosity)
# suggestion: larger than the aTol_RGC but still far below the expected flow stress of material
refRelaxationRate_RGC 1.0e-3 # reference rate of relaxation (about the same magnitude as straining rate, possibly a bit higher)
forgotten: the change in the input config
2010-03-24 18:58:46 +05:30
added missing space in makefile, made removing of old files in Makefile silent and updated files for tests to current versions
2012-05-23 23:38:34 +05:30
maxVolDiscrepancy_RGC 1.0e-5 # maximum allowable relative volume discrepancy
now consistent with numerics.f90 values
2010-09-21 20:07:52 +05:30
volDiscrepancyMod_RGC 1.0e+12
discrepancyPower_RGC 5.0
forgotten: the change in the input config
2010-03-24 18:58:46 +05:30
added missing space in makefile, made removing of old files in Makefile silent and updated files for tests to current versions
2012-05-23 23:38:34 +05:30
fixed_seed 0 # put any number larger than zero, integer, if you want to have a pseudo random distribution
added spectral numeric parameters to numerics.config, changed values for spectral numeric parameters in numerics.f90 to more suitable values for new method for determination of divergence in Fourier space
2011-07-11 19:58:56 +05:30
## spectral parameters ##
added missing space in makefile, made removing of old files in Makefile silent and updated files for tests to current versions
2012-05-23 23:38:34 +05:30
err_div_tol 0.1 # Div(P)/avg(P)*meter
err_stress_tolrel 0.01 # relative tolerance for fulfillment of stress BC
err_stress_tolabs 9.9e40 # absolute tolerance for fulfillment of stress BC
fftw_timelimit -1.0 # timelimit of plan creation for FFTW, see manual on www.fftw.org, Default -1.0: disable timelimit
rotation_tol 1.0e-12 # tolerance of rotation specified in loadcase, Default 1.0e-12: first guess
fftw_plan_mode FFTW_PATIENT # reads the planing-rigor flag, see manual on www.fftw.org, Default FFTW_PATIENT: use patient planner flag
itmax 20 # Maximum iteration number
itmin 2 # Minimum iteration number
memory_efficient 1 # Precalculate Gamma-operator (81 double per point)
update_gamma 0 # Update Gamma-operator with current dPdF (not possible if memory_efficient=1)
divergence_correction 0 # Use dimension-independent divergence criterion