[ContitutiveLawsApp] Minor PR on iso/kin hardening plasticity integrators #12414
Conversation
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
The commit is mainly related with the fact that some operations in the stress integration process for the kinematic hardening plasticity must be done according to real stresses and not based on the ficticeous stresses computed using the back stress.
|
I would let @AlejandroCornejo to approve, LGTM |
philbucher
approved these changes
Jun 2, 2024
AlejandroCornejo
approved these changes
Jun 3, 2024
| AdvancedConstitutiveLawUtilities<VoigtSize>::CalculateI1Invariant(rPredictiveStressVector, I1); | ||
| AdvancedConstitutiveLawUtilities<VoigtSize>::CalculateJ2Invariant(rPredictiveStressVector, I1, deviator, J2); | ||
| CalculateDerivativeYieldSurface(rPredictiveStressVector, deviator, J2, rYieldSurfaceDerivative, rValues); | ||
| CalculateDerivativePlasticPotential(rPredictiveStressVector, deviator, J2, rDerivativePlasticPotential, rValues); | ||
| CalculateIndicatorsFactors(rPredictiveStressVector, tensile_indicator_factor,compression_indicator_factor); | ||
| CalculatePlasticDissipation(rPredictiveStressVector, tensile_indicator_factor,compression_indicator_factor, rPlasticStrainIncrement,rPlasticDissipation, h_capa, rValues, CharacteristicLength); | ||
| CalculateIndicatorsFactors(rPredictiveStressVector + rBackStressVector, tensile_indicator_factor,compression_indicator_factor); // The real stress state is used. |
There was a problem hiding this comment.
yes, this is what we discussed months ago, right?
| rEquivalentStressThreshold = initial_threshold * (1.0 - PlasticDissipation); | ||
| rSlope = - initial_threshold; | ||
| if (total_or_plastic_strain_space) { // Curve built in the total strain space | ||
| rEquivalentStressThreshold = (young_modulus / initial_threshold) * ((0.5 * std::pow(initial_threshold, 2.0) / young_modulus - characteristic_fracture_energy_compression) |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
📝 Description
Minor PR updating the plasticity CL to add some functionalities, fix some errors and avoiding redundancy.
🆕 Changelog
This results in