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overhaul to allow for multiphase/homogenization setup.
2009-03-04 17:18:54 +05:30
#####################
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
# $Id$
#####################
overhaul to allow for multiphase/homogenization setup.
2009-03-04 17:18:54 +05:30
<homogenization>
#####################
[SX]
Taylor homogenization is now called isostrain, changed material.config accordingly. corrected error message in case of unknown homogenization
2009-06-08 18:58:00 +05:30
type isostrain
overhaul to allow for multiphase/homogenization setup.
2009-03-04 17:18:54 +05:30
Ngrains 1
CPFEM.f90 >>> A very small, not important thing. homogenization.f90 and crystallite.f90 >>> Correction in the algorithm to count the iteration distribution (for better statistics). material.config and numerics.config >>> more collection of parameters.
2009-08-28 20:35:14 +05:30
[Grain_Cluster]
type RGC
ngrains 8
added possibility to output individual grain deformation gradient in homogenization_RGC.f90 and the homogenization.f90 has been modified accordingly. see material.config for the key-words to output the individual grain deformation gradient in the homogenization block.
2009-10-22 14:54:05 +05:30
clustersize 2 2 2 # product of these numbers must be equal to ngrains(!)
just small changes in the 'default' value of RGC numerical parameters.
2009-10-30 15:24:52 +05:30
grainsizeparameter 1.0e+3 1.0e+3 1.0e+3 # in [nm]
overproportionality 1.0e+1 1.0e+1 1.0e+1 # typical range between 0.1 (very large grain) to 100 (very small grain)
CPFEM.f90 >>> A very small, not important thing. homogenization.f90 and crystallite.f90 >>> Correction in the algorithm to count the iteration distribution (for better statistics). material.config and numerics.config >>> more collection of parameters.
2009-08-28 20:35:14 +05:30
(output) constitutivework
(output) penaltyenergy
(output) magnitudemismatch
Example of material.config, delivering the required information for the new version of constitutive_dislobased
2009-07-14 17:01:06 +05:30
[Taylor2]
type isostrain
Ngrains 2
overhaul to allow for multiphase/homogenization setup.
2009-03-04 17:18:54 +05:30
#####################
<microstructure>
#####################
now with first draft of nonlocal constitutive law debugging memory leak closed debugging counters corrected center of gravity stored in mesh state updated is now split into a collecting loop and an execution updateState and updateTemperature fill sequentially separate logicals and evaluate afterwards to converged added 3x3 transposition function, norm for 3x1 matrix and 33x3 matrix multiplication in math non-converged crystallite triggers materialpoint cutback (used to respond elastically) non-converged materialpoint raises terminal illness which in turn renders whole FE increment useless by means of odd stress/stiffness and thus waits for FE cutback
2009-08-11 22:01:57 +05:30
[Aluminum_Poly]
(constituent) phase 3 texture 1 fraction 1.0
Example of material.config, delivering the required information for the new version of constitutive_dislobased
2009-07-14 17:01:06 +05:30
now with first draft of nonlocal constitutive law debugging memory leak closed debugging counters corrected center of gravity stored in mesh state updated is now split into a collecting loop and an execution updateState and updateTemperature fill sequentially separate logicals and evaluate afterwards to converged added 3x3 transposition function, norm for 3x1 matrix and 33x3 matrix multiplication in math non-converged crystallite triggers materialpoint cutback (used to respond elastically) non-converged materialpoint raises terminal illness which in turn renders whole FE increment useless by means of odd stress/stiffness and thus waits for FE cutback
2009-08-11 22:01:57 +05:30
[Aluminum_001]
(constituent) phase 3 texture 2 fraction 1.0
overhaul to allow for multiphase/homogenization setup.
2009-03-04 17:18:54 +05:30
now with first draft of nonlocal constitutive law debugging memory leak closed debugging counters corrected center of gravity stored in mesh state updated is now split into a collecting loop and an execution updateState and updateTemperature fill sequentially separate logicals and evaluate afterwards to converged added 3x3 transposition function, norm for 3x1 matrix and 33x3 matrix multiplication in math non-converged crystallite triggers materialpoint cutback (used to respond elastically) non-converged materialpoint raises terminal illness which in turn renders whole FE increment useless by means of odd stress/stiffness and thus waits for FE cutback
2009-08-11 22:01:57 +05:30
[Aluminum_j2]
Example of material.config, delivering the required information for the new version of constitutive_dislobased
2009-07-14 17:01:06 +05:30
(constituent) phase 1 texture 1 fraction 1.0
overhaul to allow for multiphase/homogenization setup.
2009-03-04 17:18:54 +05:30
CPFEM.f90 >>> A very small, not important thing. homogenization.f90 and crystallite.f90 >>> Correction in the algorithm to count the iteration distribution (for better statistics). material.config and numerics.config >>> more collection of parameters.
2009-08-28 20:35:14 +05:30
[DP_Steel]
(constituent) phase 1 texture 1 fraction 0.82
(constituent) phase 2 texture 1 fraction 0.18
overhaul to allow for multiphase/homogenization setup.
2009-03-04 17:18:54 +05:30
#####################
<phase>
#####################
quite some changes: # non-greedy memory allocation # generation of outputConstitutive to allow for script-based T16 extraction # exchange of phenomenological by more general phenopowerlaw # lattice is based on slip and twin families which can be treated as individual entities (switched on/off, separate hardening, etc.) # nicer debugging output # changed some error/warning codes # plus potentially some minor additional brushes here and there
2009-07-22 21:37:19 +05:30
[Aluminum_J2isotropic]
constitution j2
(output) flowstress
(output) strainrate
c11 110.9e9
c12 58.34e9
taylorfactor 3
tau0 31e6
gdot0 0.001
n 20
h0 75e6
tausat 63e6
convergence of state in crystallite is now tested as follows: (state < relevant state) or (residuum < relative tolerance * state) since the relevant value for the state variables depend on their nature and can vary by large scales (e.g. volume fraction: 1e-10, dislocation density: 1e5) it is not possible to set a unique value. instead the constitutive law has to decide what is relevant. therefore, all constitutive laws now read in parameters from the material.config that determine the values for relevantState [@luc: in dislobased law relevant State is for the moment generally set to 1e-200, so no additional parameters necessary in material.config. if you also want this feature, we can still implement it, no big deal] - added sanity checks in constitutive_nonlocal.f90 - corrected coordinate transformation for backstress calculation in constitutive_nonlocal.f90 - corrected equations for evolution of dipole dislocation densities (athermal annihilation and formation by glide)
2009-09-18 21:07:14 +05:30
w0 2.25
relevantResistance 1
quite some changes: # non-greedy memory allocation # generation of outputConstitutive to allow for script-based T16 extraction # exchange of phenomenological by more general phenopowerlaw # lattice is based on slip and twin families which can be treated as individual entities (switched on/off, separate hardening, etc.) # nicer debugging output # changed some error/warning codes # plus potentially some minor additional brushes here and there
2009-07-22 21:37:19 +05:30
[Aluminum_phenopowerlaw]
# slip only
constitution phenopowerlaw
(output) resistance_slip
(output) shearrate_slip
(output) resolvedstress_slip
(output) totalshear
(output) resistance_twin
(output) shearrate_twin
(output) resolvedstress_twin
(output) totalvolfrac
lattice_structure fcc
Nslip 12 0 0 0 # per family
Ntwin 0 0 0 0 # per family
added examples for j2
2009-03-06 16:45:55 +05:30
exchanged new lattice_structure ("fcc", "bcc", "hexagonal")
2009-03-20 20:49:21 +05:30
c11 106.75e9
c12 60.41e9
c44 28.34e9
Example of material.config, delivering the required information for the new version of constitutive_dislobased
2009-07-14 17:01:06 +05:30
update of sample material.config parts
2009-03-05 22:12:05 +05:30
gdot0_slip 0.001
n_slip 20
now with first draft of nonlocal constitutive law debugging memory leak closed debugging counters corrected center of gravity stored in mesh state updated is now split into a collecting loop and an execution updateState and updateTemperature fill sequentially separate logicals and evaluate afterwards to converged added 3x3 transposition function, norm for 3x1 matrix and 33x3 matrix multiplication in math non-converged crystallite triggers materialpoint cutback (used to respond elastically) non-converged materialpoint raises terminal illness which in turn renders whole FE increment useless by means of odd stress/stiffness and thus waits for FE cutback
2009-08-11 22:01:57 +05:30
tau0_slip 31e6 # per family
tausat_slip 63e6 # per family
material_config: added w0_slip in [Aluminum_phenopowerlaw]
2009-08-31 21:08:09 +05:30
w0_slip 2.25
quite some changes: # non-greedy memory allocation # generation of outputConstitutive to allow for script-based T16 extraction # exchange of phenomenological by more general phenopowerlaw # lattice is based on slip and twin families which can be treated as individual entities (switched on/off, separate hardening, etc.) # nicer debugging output # changed some error/warning codes # plus potentially some minor additional brushes here and there
2009-07-22 21:37:19 +05:30
gdot0_twin 0.001
n_twin 20
now with first draft of nonlocal constitutive law debugging memory leak closed debugging counters corrected center of gravity stored in mesh state updated is now split into a collecting loop and an execution updateState and updateTemperature fill sequentially separate logicals and evaluate afterwards to converged added 3x3 transposition function, norm for 3x1 matrix and 33x3 matrix multiplication in math non-converged crystallite triggers materialpoint cutback (used to respond elastically) non-converged materialpoint raises terminal illness which in turn renders whole FE increment useless by means of odd stress/stiffness and thus waits for FE cutback
2009-08-11 22:01:57 +05:30
tau0_twin 31e6 # per family
quite some changes: # non-greedy memory allocation # generation of outputConstitutive to allow for script-based T16 extraction # exchange of phenomenological by more general phenopowerlaw # lattice is based on slip and twin families which can be treated as individual entities (switched on/off, separate hardening, etc.) # nicer debugging output # changed some error/warning codes # plus potentially some minor additional brushes here and there
2009-07-22 21:37:19 +05:30
s_pr 0 # push-up factor for slip saturation due to twinning
twin_b 0
twin_c 0
twin_d 0
twin_e 0
h0_slipslip 75e6
h0_sliptwin 0
h0_twinslip 0
h0_twintwin 0
interaction_slipslip 1 1 1.4 1.4 1.4 1.4
interaction_sliptwin 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
interaction_twinslip 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
interaction_twintwin 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
convergence of state in crystallite is now tested as follows: (state < relevant state) or (residuum < relative tolerance * state) since the relevant value for the state variables depend on their nature and can vary by large scales (e.g. volume fraction: 1e-10, dislocation density: 1e5) it is not possible to set a unique value. instead the constitutive law has to decide what is relevant. therefore, all constitutive laws now read in parameters from the material.config that determine the values for relevantState [@luc: in dislobased law relevant State is for the moment generally set to 1e-200, so no additional parameters necessary in material.config. if you also want this feature, we can still implement it, no big deal] - added sanity checks in constitutive_nonlocal.f90 - corrected coordinate transformation for backstress calculation in constitutive_nonlocal.f90 - corrected equations for evolution of dipole dislocation densities (athermal annihilation and formation by glide)
2009-09-18 21:07:14 +05:30
relevantResistance 1
overhaul to allow for multiphase/homogenization setup.
2009-03-04 17:18:54 +05:30
now with first draft of nonlocal constitutive law debugging memory leak closed debugging counters corrected center of gravity stored in mesh state updated is now split into a collecting loop and an execution updateState and updateTemperature fill sequentially separate logicals and evaluate afterwards to converged added 3x3 transposition function, norm for 3x1 matrix and 33x3 matrix multiplication in math non-converged crystallite triggers materialpoint cutback (used to respond elastically) non-converged materialpoint raises terminal illness which in turn renders whole FE increment useless by means of odd stress/stiffness and thus waits for FE cutback
2009-08-11 22:01:57 +05:30
[Aluminum_nonlocal]
constitution nonlocal
/nonlocal/
constitutive_nonlocal: - dipole dislocations with evolution crystallite.f90: - collect state uses subdt and subTstar0_v - in nonlocal modus: set all crystallites to broken if one is not on track anymore after either stress integration or state update - constitutive_microstructure is now called inside state update and not in integrate_stress anymore material.config: - new parameter for nonlocal constitution CPFEM.f90: - age Tstar after increment was finished
2009-08-28 19:20:47 +05:30
(output) rho
constitutive_nonlocal: - read in activation energy for dislocation glide from material.config - changed naming of dDipMin/Max to dLower/dUpper - added new outputs: rho_dot, rho_dot_dip, rho_dot_gen, rho_dot_sgl2dip, rho_dot_dip2sgl, rho_dot_ann_ath, rho_dot_ann_the, rho_dot_flux, d_upper_edge, d_upper_screw, d_upper_dot_edge, d_upper_dot_screw - poisson's ratio is now calculated from elastic constants - microstrucutre has state as first argument, since this is our output variable - periodic boundary conditions are taken into account for fluxes and internal stresses. for the moment, flag has to be set in constitutive_nonlocal. - corrected calculation for dipole formation by glide - added terms for dipole formation/annihilation by stress decrease/increase constitutive: - passing of arguments is adapted for constitutive_nonlocal model crystallite: - in stiffness calculation: call to collect_dotState used wrong arguments - crystallite_postResults uses own Tstar_v and temperature, no need for passing them from materialpoint_postResults homogenization: - crystallite_postResults uses own Tstar_v and temperature, no need for passing them from materialpoint_postResults IO: - changed error message 229 material.config: - changed example for nonlocal constitution according to constitutive_nonlocal all: - added some flush statements
2009-10-20 20:06:03 +05:30
(output) delta
constitutive_nonlocal: - dipole dislocations with evolution crystallite.f90: - collect state uses subdt and subTstar0_v - in nonlocal modus: set all crystallites to broken if one is not on track anymore after either stress integration or state update - constitutive_microstructure is now called inside state update and not in integrate_stress anymore material.config: - new parameter for nonlocal constitution CPFEM.f90: - age Tstar after increment was finished
2009-08-28 19:20:47 +05:30
(output) rho_edge
(output) rho_screw
(output) excess_rho_edge
(output) excess_rho_screw
(output) rho_forest
added missing constitutive outputs for nonlocal law
2009-10-01 22:01:06 +05:30
(output) rho_dip
constitutive_nonlocal: - read in activation energy for dislocation glide from material.config - changed naming of dDipMin/Max to dLower/dUpper - added new outputs: rho_dot, rho_dot_dip, rho_dot_gen, rho_dot_sgl2dip, rho_dot_dip2sgl, rho_dot_ann_ath, rho_dot_ann_the, rho_dot_flux, d_upper_edge, d_upper_screw, d_upper_dot_edge, d_upper_dot_screw - poisson's ratio is now calculated from elastic constants - microstrucutre has state as first argument, since this is our output variable - periodic boundary conditions are taken into account for fluxes and internal stresses. for the moment, flag has to be set in constitutive_nonlocal. - corrected calculation for dipole formation by glide - added terms for dipole formation/annihilation by stress decrease/increase constitutive: - passing of arguments is adapted for constitutive_nonlocal model crystallite: - in stiffness calculation: call to collect_dotState used wrong arguments - crystallite_postResults uses own Tstar_v and temperature, no need for passing them from materialpoint_postResults homogenization: - crystallite_postResults uses own Tstar_v and temperature, no need for passing them from materialpoint_postResults IO: - changed error message 229 material.config: - changed example for nonlocal constitution according to constitutive_nonlocal all: - added some flush statements
2009-10-20 20:06:03 +05:30
(output) delta_dip
added missing constitutive outputs for nonlocal law
2009-10-01 22:01:06 +05:30
(output) rho_edge_dip
(output) rho_screw_dip
constitutive_nonlocal: - dipole dislocations with evolution crystallite.f90: - collect state uses subdt and subTstar0_v - in nonlocal modus: set all crystallites to broken if one is not on track anymore after either stress integration or state update - constitutive_microstructure is now called inside state update and not in integrate_stress anymore material.config: - new parameter for nonlocal constitution CPFEM.f90: - age Tstar after increment was finished
2009-08-28 19:20:47 +05:30
(output) shearrate
(output) resolvedstress
(output) resistance
constitutive_nonlocal: - read in activation energy for dislocation glide from material.config - changed naming of dDipMin/Max to dLower/dUpper - added new outputs: rho_dot, rho_dot_dip, rho_dot_gen, rho_dot_sgl2dip, rho_dot_dip2sgl, rho_dot_ann_ath, rho_dot_ann_the, rho_dot_flux, d_upper_edge, d_upper_screw, d_upper_dot_edge, d_upper_dot_screw - poisson's ratio is now calculated from elastic constants - microstrucutre has state as first argument, since this is our output variable - periodic boundary conditions are taken into account for fluxes and internal stresses. for the moment, flag has to be set in constitutive_nonlocal. - corrected calculation for dipole formation by glide - added terms for dipole formation/annihilation by stress decrease/increase constitutive: - passing of arguments is adapted for constitutive_nonlocal model crystallite: - in stiffness calculation: call to collect_dotState used wrong arguments - crystallite_postResults uses own Tstar_v and temperature, no need for passing them from materialpoint_postResults homogenization: - crystallite_postResults uses own Tstar_v and temperature, no need for passing them from materialpoint_postResults IO: - changed error message 229 material.config: - changed example for nonlocal constitution according to constitutive_nonlocal all: - added some flush statements
2009-10-20 20:06:03 +05:30
(output) rho_dot
(output) rho_dot_dip
(output) rho_dot_gen
(output) rho_dot_sgl2dip
(output) rho_dot_dip2sgl
(output) rho_dot_ann_ath
(output) rho_dot_ann_the
(output) rho_dot_flux
(output) d_upper_edge
(output) d_upper_screw
(output) d_upper_dot_screw
(output) d_upper_dot_edge
now with first draft of nonlocal constitutive law debugging memory leak closed debugging counters corrected center of gravity stored in mesh state updated is now split into a collecting loop and an execution updateState and updateTemperature fill sequentially separate logicals and evaluate afterwards to converged added 3x3 transposition function, norm for 3x1 matrix and 33x3 matrix multiplication in math non-converged crystallite triggers materialpoint cutback (used to respond elastically) non-converged materialpoint raises terminal illness which in turn renders whole FE increment useless by means of odd stress/stiffness and thus waits for FE cutback
2009-08-11 22:01:57 +05:30
lattice_structure fcc
convergence of state in crystallite is now tested as follows: (state < relevant state) or (residuum < relative tolerance * state) since the relevant value for the state variables depend on their nature and can vary by large scales (e.g. volume fraction: 1e-10, dislocation density: 1e5) it is not possible to set a unique value. instead the constitutive law has to decide what is relevant. therefore, all constitutive laws now read in parameters from the material.config that determine the values for relevantState [@luc: in dislobased law relevant State is for the moment generally set to 1e-200, so no additional parameters necessary in material.config. if you also want this feature, we can still implement it, no big deal] - added sanity checks in constitutive_nonlocal.f90 - corrected coordinate transformation for backstress calculation in constitutive_nonlocal.f90 - corrected equations for evolution of dipole dislocation densities (athermal annihilation and formation by glide)
2009-09-18 21:07:14 +05:30
Nslip 12 0 0 0 # number of slip systems per family
now with first draft of nonlocal constitutive law debugging memory leak closed debugging counters corrected center of gravity stored in mesh state updated is now split into a collecting loop and an execution updateState and updateTemperature fill sequentially separate logicals and evaluate afterwards to converged added 3x3 transposition function, norm for 3x1 matrix and 33x3 matrix multiplication in math non-converged crystallite triggers materialpoint cutback (used to respond elastically) non-converged materialpoint raises terminal illness which in turn renders whole FE increment useless by means of odd stress/stiffness and thus waits for FE cutback
2009-08-11 22:01:57 +05:30
c11 106.75e9
c12 60.41e9
c44 28.34e9
overhaul to allow for multiphase/homogenization setup.
2009-03-04 17:18:54 +05:30
constitutive_nonlocal: - dipole dislocations with evolution crystallite.f90: - collect state uses subdt and subTstar0_v - in nonlocal modus: set all crystallites to broken if one is not on track anymore after either stress integration or state update - constitutive_microstructure is now called inside state update and not in integrate_stress anymore material.config: - new parameter for nonlocal constitution CPFEM.f90: - age Tstar after increment was finished
2009-08-28 19:20:47 +05:30
burgers 2.86e-10 0 0 0 # Burgers vector in m
convergence of state in crystallite is now tested as follows: (state < relevant state) or (residuum < relative tolerance * state) since the relevant value for the state variables depend on their nature and can vary by large scales (e.g. volume fraction: 1e-10, dislocation density: 1e5) it is not possible to set a unique value. instead the constitutive law has to decide what is relevant. therefore, all constitutive laws now read in parameters from the material.config that determine the values for relevantState [@luc: in dislobased law relevant State is for the moment generally set to 1e-200, so no additional parameters necessary in material.config. if you also want this feature, we can still implement it, no big deal] - added sanity checks in constitutive_nonlocal.f90 - corrected coordinate transformation for backstress calculation in constitutive_nonlocal.f90 - corrected equations for evolution of dipole dislocation densities (athermal annihilation and formation by glide)
2009-09-18 21:07:14 +05:30
rhoEdgePos0 1e10 0 0 0 # Initial positive edge dislocation density in m/m**3
rhoEdgeNeg0 1e10 0 0 0 # Initial negative edge dislocation density in m/m**3
rhoScrewPos0 1e10 0 0 0 # Initial positive screw dislocation density in m/m**3
rhoScrewNeg0 1e10 0 0 0 # Initial negative screw dislocation density in m/m**3
rhoEdgeDip0 1 0 0 0 # Initial edge dipole dislocation density in m/m**3
rhoScrewDip0 1 0 0 0 # Initial screw dipole dislocation density in m/m**3
constitutive_nonlocal: - dipole dislocations with evolution crystallite.f90: - collect state uses subdt and subTstar0_v - in nonlocal modus: set all crystallites to broken if one is not on track anymore after either stress integration or state update - constitutive_microstructure is now called inside state update and not in integrate_stress anymore material.config: - new parameter for nonlocal constitution CPFEM.f90: - age Tstar after increment was finished
2009-08-28 19:20:47 +05:30
v0 1e-4 0 0 0 # prefactor for dislocation velocity
constitutive_nonlocal: - read in activation energy for dislocation glide from material.config - changed naming of dDipMin/Max to dLower/dUpper - added new outputs: rho_dot, rho_dot_dip, rho_dot_gen, rho_dot_sgl2dip, rho_dot_dip2sgl, rho_dot_ann_ath, rho_dot_ann_the, rho_dot_flux, d_upper_edge, d_upper_screw, d_upper_dot_edge, d_upper_dot_screw - poisson's ratio is now calculated from elastic constants - microstrucutre has state as first argument, since this is our output variable - periodic boundary conditions are taken into account for fluxes and internal stresses. for the moment, flag has to be set in constitutive_nonlocal. - corrected calculation for dipole formation by glide - added terms for dipole formation/annihilation by stress decrease/increase constitutive: - passing of arguments is adapted for constitutive_nonlocal model crystallite: - in stiffness calculation: call to collect_dotState used wrong arguments - crystallite_postResults uses own Tstar_v and temperature, no need for passing them from materialpoint_postResults homogenization: - crystallite_postResults uses own Tstar_v and temperature, no need for passing them from materialpoint_postResults IO: - changed error message 229 material.config: - changed example for nonlocal constitution according to constitutive_nonlocal all: - added some flush statements
2009-10-20 20:06:03 +05:30
Q0 3e-19 # activation energy for dislocation glide
constitutive_nonlocal: - dipole dislocations with evolution crystallite.f90: - collect state uses subdt and subTstar0_v - in nonlocal modus: set all crystallites to broken if one is not on track anymore after either stress integration or state update - constitutive_microstructure is now called inside state update and not in integrate_stress anymore material.config: - new parameter for nonlocal constitution CPFEM.f90: - age Tstar after increment was finished
2009-08-28 19:20:47 +05:30
dDipMinEdge 1e-9 0 0 0 # minimum distance for stable edge dipoles in m
dDipMinScrew 1e-9 0 0 0 # minimum distance for stable screw dipoles in m
convergence of state in crystallite is now tested as follows: (state < relevant state) or (residuum < relative tolerance * state) since the relevant value for the state variables depend on their nature and can vary by large scales (e.g. volume fraction: 1e-10, dislocation density: 1e5) it is not possible to set a unique value. instead the constitutive law has to decide what is relevant. therefore, all constitutive laws now read in parameters from the material.config that determine the values for relevantState [@luc: in dislobased law relevant State is for the moment generally set to 1e-200, so no additional parameters necessary in material.config. if you also want this feature, we can still implement it, no big deal] - added sanity checks in constitutive_nonlocal.f90 - corrected coordinate transformation for backstress calculation in constitutive_nonlocal.f90 - corrected equations for evolution of dipole dislocation densities (athermal annihilation and formation by glide)
2009-09-18 21:07:14 +05:30
lambda0 100 0 0 0 # prefactor for mean free path
constitutive_nonlocal: - dipole dislocations with evolution crystallite.f90: - collect state uses subdt and subTstar0_v - in nonlocal modus: set all crystallites to broken if one is not on track anymore after either stress integration or state update - constitutive_microstructure is now called inside state update and not in integrate_stress anymore material.config: - new parameter for nonlocal constitution CPFEM.f90: - age Tstar after increment was finished
2009-08-28 19:20:47 +05:30
atomicVolume 1.7e-29
convergence of state in crystallite is now tested as follows: (state < relevant state) or (residuum < relative tolerance * state) since the relevant value for the state variables depend on their nature and can vary by large scales (e.g. volume fraction: 1e-10, dislocation density: 1e5) it is not possible to set a unique value. instead the constitutive law has to decide what is relevant. therefore, all constitutive laws now read in parameters from the material.config that determine the values for relevantState [@luc: in dislobased law relevant State is for the moment generally set to 1e-200, so no additional parameters necessary in material.config. if you also want this feature, we can still implement it, no big deal] - added sanity checks in constitutive_nonlocal.f90 - corrected coordinate transformation for backstress calculation in constitutive_nonlocal.f90 - corrected equations for evolution of dipole dislocation densities (athermal annihilation and formation by glide)
2009-09-18 21:07:14 +05:30
D0 1e-4 # prefactor for self-diffusion coefficient
constitutive_nonlocal: - read in activation energy for dislocation glide from material.config - changed naming of dDipMin/Max to dLower/dUpper - added new outputs: rho_dot, rho_dot_dip, rho_dot_gen, rho_dot_sgl2dip, rho_dot_dip2sgl, rho_dot_ann_ath, rho_dot_ann_the, rho_dot_flux, d_upper_edge, d_upper_screw, d_upper_dot_edge, d_upper_dot_screw - poisson's ratio is now calculated from elastic constants - microstrucutre has state as first argument, since this is our output variable - periodic boundary conditions are taken into account for fluxes and internal stresses. for the moment, flag has to be set in constitutive_nonlocal. - corrected calculation for dipole formation by glide - added terms for dipole formation/annihilation by stress decrease/increase constitutive: - passing of arguments is adapted for constitutive_nonlocal model crystallite: - in stiffness calculation: call to collect_dotState used wrong arguments - crystallite_postResults uses own Tstar_v and temperature, no need for passing them from materialpoint_postResults homogenization: - crystallite_postResults uses own Tstar_v and temperature, no need for passing them from materialpoint_postResults IO: - changed error message 229 material.config: - changed example for nonlocal constitution according to constitutive_nonlocal all: - added some flush statements
2009-10-20 20:06:03 +05:30
Qsd 2.3e-19 # activation enthalpy for seld-diffusion
convergence of state in crystallite is now tested as follows: (state < relevant state) or (residuum < relative tolerance * state) since the relevant value for the state variables depend on their nature and can vary by large scales (e.g. volume fraction: 1e-10, dislocation density: 1e5) it is not possible to set a unique value. instead the constitutive law has to decide what is relevant. therefore, all constitutive laws now read in parameters from the material.config that determine the values for relevantState [@luc: in dislobased law relevant State is for the moment generally set to 1e-200, so no additional parameters necessary in material.config. if you also want this feature, we can still implement it, no big deal] - added sanity checks in constitutive_nonlocal.f90 - corrected coordinate transformation for backstress calculation in constitutive_nonlocal.f90 - corrected equations for evolution of dipole dislocation densities (athermal annihilation and formation by glide)
2009-09-18 21:07:14 +05:30
relevantRho 1e3 # dislocation density considered relevant
constitutive_nonlocal: - dipole dislocations with evolution crystallite.f90: - collect state uses subdt and subTstar0_v - in nonlocal modus: set all crystallites to broken if one is not on track anymore after either stress integration or state update - constitutive_microstructure is now called inside state update and not in integrate_stress anymore material.config: - new parameter for nonlocal constitution CPFEM.f90: - age Tstar after increment was finished
2009-08-28 19:20:47 +05:30
interaction_SlipSlip 1.0 2.2 3.0 1.6 3.8 4.5 # Dislocation interaction coefficient
overhaul to allow for multiphase/homogenization setup.
2009-03-04 17:18:54 +05:30
CPFEM.f90 >>> A very small, not important thing. homogenization.f90 and crystallite.f90 >>> Correction in the algorithm to count the iteration distribution (for better statistics). material.config and numerics.config >>> more collection of parameters.
2009-08-28 20:35:14 +05:30
[BCC_Ferrite]
constitution phenopowerlaw
lattice_structure bcc
Nslip 12 0 0 0 # per family
Ntwin 0 0 0 0 # per family
c11 233.3e9
c12 135.5e9
c44 118.0e9
gdot0_slip 0.001
n_slip 20
tau0_slip 88.0e6 0 0 0 # per family
tausat_slip 201.0e6 0 0 0 # per family
gdot0_twin 0.001
n_twin 20
tau0_twin 31.0e6 0 0 0 # per family
s_pr 0 # push-up factor for slip saturation due to twinning
twin_b 0
twin_c 0
twin_d 0
twin_e 0
h0_slipslip 391.0e6
h0_sliptwin 0
h0_twinslip 0
h0_twintwin 0
interaction_slipslip 1 1 1.4 1.4 1.4 1.4
interaction_sliptwin 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
interaction_twinslip 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
interaction_twintwin 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
w0_slip 1.0
convergence of state in crystallite is now tested as follows: (state < relevant state) or (residuum < relative tolerance * state) since the relevant value for the state variables depend on their nature and can vary by large scales (e.g. volume fraction: 1e-10, dislocation density: 1e5) it is not possible to set a unique value. instead the constitutive law has to decide what is relevant. therefore, all constitutive laws now read in parameters from the material.config that determine the values for relevantState [@luc: in dislobased law relevant State is for the moment generally set to 1e-200, so no additional parameters necessary in material.config. if you also want this feature, we can still implement it, no big deal] - added sanity checks in constitutive_nonlocal.f90 - corrected coordinate transformation for backstress calculation in constitutive_nonlocal.f90 - corrected equations for evolution of dipole dislocation densities (athermal annihilation and formation by glide)
2009-09-18 21:07:14 +05:30
relevantResistance 1
CPFEM.f90 >>> A very small, not important thing. homogenization.f90 and crystallite.f90 >>> Correction in the algorithm to count the iteration distribution (for better statistics). material.config and numerics.config >>> more collection of parameters.
2009-08-28 20:35:14 +05:30
[BCC_Martensite]
constitution phenopowerlaw
lattice_structure bcc
Nslip 12 0 0 0 # per family
Ntwin 0 0 0 0 # per family
c11 511.1e9
c12 296.9e9
c44 258.5e9
gdot0_slip 0.001
n_slip 20
tau0_slip 396.0e6 0 0 0 # per family
tausat_slip 1120.0e6 0 0 0 # per family
gdot0_twin 0.001
n_twin 20
tau0_twin 31.0e6 0 0 0 # per family
s_pr 0 # push-up factor for slip saturation due to twinning
twin_b 0
twin_c 0
twin_d 0
twin_e 0
h0_slipslip 215000.0e6
h0_sliptwin 0
h0_twinslip 0
h0_twintwin 0
interaction_slipslip 1 1 1.4 1.4 1.4 1.4
interaction_sliptwin 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
interaction_twinslip 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
interaction_twintwin 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
w0_slip 4.0
convergence of state in crystallite is now tested as follows: (state < relevant state) or (residuum < relative tolerance * state) since the relevant value for the state variables depend on their nature and can vary by large scales (e.g. volume fraction: 1e-10, dislocation density: 1e5) it is not possible to set a unique value. instead the constitutive law has to decide what is relevant. therefore, all constitutive laws now read in parameters from the material.config that determine the values for relevantState [@luc: in dislobased law relevant State is for the moment generally set to 1e-200, so no additional parameters necessary in material.config. if you also want this feature, we can still implement it, no big deal] - added sanity checks in constitutive_nonlocal.f90 - corrected coordinate transformation for backstress calculation in constitutive_nonlocal.f90 - corrected equations for evolution of dipole dislocation densities (athermal annihilation and formation by glide)
2009-09-18 21:07:14 +05:30
relevantResistance 1
CPFEM.f90 >>> A very small, not important thing. homogenization.f90 and crystallite.f90 >>> Correction in the algorithm to count the iteration distribution (for better statistics). material.config and numerics.config >>> more collection of parameters.
2009-08-28 20:35:14 +05:30
The new dislocation model is now implemented in constitutive_dislotwin.f90 (seems to run fine, but still under investigation)
2009-10-10 01:58:23 +05:30
[TWIP steel FeMnC]
#(output) edge_density
#(output) dipole_density
#(output) shear_rate_slip
#(output) mfp_slip
#(output) resolved_stress_slip
#(output) threshold_stress_slip
#(output) twin_fraction
#(output) shear_rate_twin
#(output) mfp_twin
#(output) resolved_stress_twin
#(output) threshold_stress_twin
### Material parameters ###
lattice_structure fcc
constitution dislotwin
C11 175.0e9 # From Music et al. Applied Physics Letters 91, 191904 (2007)
C12 115.0e9
C44 135.0e9
grainsize 2.0e-5 # Average grain size [m]
### Dislocation glide adjusting parameters ###
Nslip 12 0 0 0
slipburgers 2.56e-10 0 0 0 # Burgers vector of slip system [m]
rhoedge0 1.0e12 0 0 0 # Initial dislocation density [m/m<>]
rhoedgedip0 1.0 0 0 0 # Initial dislocation density [m/m<>]
Qedge 3.7e-19 0 0 0 # Activation energy for dislocation glide [J]
v0 1.0e-4 0 0 0 # Initial glide velocity [m/s]
CLambdaSlip 10.0 0 0 0 # Adj. parameter controlling dislocation mean free path
D0 4.0e-5 # Vacancy diffusion prefactor [m<>/s]
Qsd 4.5e-19 # Activation energy for climb [J]
pexponent 1.0 # p-exponent in glide velocity
qexponent 1.0 # p-exponent in glide velocity
Catomicvolume 1.0 # Adj. parameter controlling the atomic volume [in b]
Cedgedipmindistance 1.0 # Adj. parameter controlling the minimum dipole distance [in b]
relevantRho 1.0e-200
interactionSlipSlip 0.122 0.122 0.625 0.07 0.137 0.122 # Interaction coefficients (Kubin et al. 2008)
### dislocation density-based constitutive parameters ###
Ntwin 12
twinburgers 1.47e-10 # Burgers vector of twin system [m]
twinsize 5.0e-8 # Twin stack mean thickness [m]
New version of constitutive_dislotwin after first-round checks
2009-10-13 20:35:21 +05:30
maxtwinfraction 1.0 # Maximum admissible twin volume fraction
The new dislocation model is now implemented in constitutive_dislotwin.f90 (seems to run fine, but still under investigation)
2009-10-10 01:58:23 +05:30
Ndot0 0.0 # Number of potential source per volume per time [1/m<>.s]
rexponent 10.0 # r-exponent in glide velocity
Cmfptwin 1.0 # Adj. parameter controlling twin mean free path
Cthresholdtwin 1.0 # Adj. parameter controlling slip threshold stress
interactionSlipTwin 0.0 1.0 # Dislocation interaction coefficients
interactionTwinTwin 0.0 1.0 # Dislocation interaction coefficients
overhaul to allow for multiphase/homogenization setup.
2009-03-04 17:18:54 +05:30
#####################
<texture>
#####################
CPFEM.f90 >>> A very small, not important thing. homogenization.f90 and crystallite.f90 >>> Correction in the algorithm to count the iteration distribution (for better statistics). material.config and numerics.config >>> more collection of parameters.
2009-08-28 20:35:14 +05:30
[Rolling]
hybridIA DP_EBSD.linearODF
overhaul to allow for multiphase/homogenization setup.
2009-03-04 17:18:54 +05:30
[random]
Example of material.config, delivering the required information for the new version of constitutive_dislobased
2009-07-14 17:01:06 +05:30
[001]
(gauss) phi1 0.000 Phi 0.000 phi2 0.000 scatter 0.000 fraction 1.000
overhaul to allow for multiphase/homogenization setup.
2009-03-04 17:18:54 +05:30
Example of material.config, delivering the required information for the new version of constitutive_dislobased
2009-07-14 17:01:06 +05:30
[101]
(gauss) phi1 0.000 Phi 45.000 phi2 90.000 scatter 0.000 fraction 1.000
overhaul to allow for multiphase/homogenization setup.
2009-03-04 17:18:54 +05:30
Example of material.config, delivering the required information for the new version of constitutive_dislobased
2009-07-14 17:01:06 +05:30
[111]
(gauss) phi1 0.000 Phi 54.7356 phi2 45.000 scatter 0.000 fraction 1.000
overhaul to allow for multiphase/homogenization setup.
2009-03-04 17:18:54 +05:30
Example of material.config, delivering the required information for the new version of constitutive_dislobased
2009-07-14 17:01:06 +05:30
[123]
(gauss) phi1 209.805 Phi 29.206 phi2 63.435 scatter 0.000 fraction 1.000