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example file updated

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Sharan Roongta 2023-07-28 11:21:27 +02:00
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examples/config/numerics.yaml
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# Case sensitive keys
homogenization:
mech:
mechanical:
RGC:
atol: 1.0e+4 # absolute tolerance of RGC residuum (in Pa)
rtol: 1.0e-3 # relative ...
amax: 1.0e+10 # absolute upper-limit of RGC residuum (in Pa)
rmax: 1.0e+2 # relative ...
perturbpenalty: 1.0e-7 # perturbation for computing penalty tangent
relevantmismatch: 1.0e-5 # minimum threshold of mismatch
viscositypower: 1.0e+0 # power (sensitivity rate) of numerical viscosity in RGC scheme
viscositymodulus: 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: 1.0e-3 # reference rate of relaxation (about the same magnitude as straining rate, possibly a bit higher)
maxrelaxationrate: 1.0e+0 # threshold of maximum relaxation vector increment (if exceed this then cutback)
maxvoldiscrepancy: 1.0e-5 # maximum allowable relative volume discrepancy
voldiscrepancymod: 1.0e+12
discrepancypower: 5.0
eps_abs_P: 1.0e+4 # absolute tolerance of RGC residuum (in Pa)
eps_rel_P: 1.0e-3 # relative ...
eps_abs_max: 1.0e+10 # absolute upper-limit of RGC residuum (in Pa)
eps_rel_max: 1.0e+2 # relative ...
perturbpenalty: 1.0e-7 # perturbation for computing penalty tangent
relevantmismatch: 1.0e-5 # minimum threshold of mismatch
viscositypower: 1.0e+0 # power (sensitivity rate) of numerical viscosity in RGC scheme
viscositymodulus: 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
dot_a_ref: 1.0e-3 # reference rate of relaxation (about the same magnitude as straining rate, possibly a bit higher)
dot_a_max: 1.0e+0 # threshold of maximum relaxation vector increment (if exceed this then cutback)
Delta_V_max: 1.0e-5 # maximum allowable relative volume discrepancy
Delta_V_mod: 1.0e+12
Delta_V_pow: 5.0
# Don't think generic is required
generic:
subStepMin: 1.0e-3 # minimum (relative) size of sub-step allowed during cutback in homogenization
subStepSize: 0.25 # size of substep when cutback introduced in homogenization (value between 0 and 1)
stepIncrease: 1.5 # increase of next substep size when previous substep converged in homogenization (value higher than 1)
nMPstate: 10 # materialpoint state loop limit
subStepMin: 1.0e-3 #? (not used) minimum (relative) size of sub-step allowed during cutback in homogenization
subStepSize: 0.25 #? (not used) size of substep when cutback introduced in homogenization (value between 0 and 1)
stepIncrease: 1.5 #? (not used) increase of next substep size when previous substep converged in homogenization (value higher than 1)
nMPstate: 10 # (do we need??) materialpoint state loop limit
solver:
grid: