# Solid Mechanics Application Yield Criteria

(Difference between revisions)
 Revision as of 17:35, 23 March 2016 (view source)Cpuigbo (Talk | contribs) (Created page with "== Definition of the class == The yield criterion defines the elastic region, the yield surface (where the plasticity occurs) and the impossible region for the stress state func...") Latest revision as of 00:56, 24 March 2016 (view source)Cpuigbo (Talk | contribs) (2 intermediate revisions by one user not shown) Line 24: Line 24: * CalculateImplexDeltaPlasticDissipation(...) * CalculateImplexDeltaPlasticDissipation(...) − + for more details look inside of the yield_criterion base class. == List of yield criteria == == List of yield criteria == {| class="wikitable" width="100%" style="text-align:left; background:#d0d9dd; border:0px solid #e1eaee; font-size:100%; -moz-border-radius-topleft:0px; -moz-border-radius-bottomleft:0px; padding:0px 0px 0px 0px;" valign="top" {| class="wikitable" width="100%" style="text-align:left; background:#d0d9dd; border:0px solid #e1eaee; font-size:100%; -moz-border-radius-topleft:0px; -moz-border-radius-bottomleft:0px; padding:0px 0px 0px 0px;" valign="top" − !Strategy + !Yield Criteria |-style="background:#F1FAFF;" |-style="background:#F1FAFF;" | MisesHuberYieldCriterion(...) | MisesHuberYieldCriterion(...) Line 35: Line 35: | SimoJuYieldCriterion(...) | SimoJuYieldCriterion(...) |} |} + + [[Category:Solid Mechanics Application]] + [[Category:Solid Mechanics Application Constitutive Laws]]

## Definition of the class

The yield criterion defines the elastic region, the yield surface (where the plasticity occurs) and the impossible region for the stress state function.

The yield criterion needs to know the hardening law considered, which is passed in the constructor.

The yield criterion class main methods are:

Used commonly in the Flow rule:

• CalculateYieldCondition(...)
• CalculateStateFunction(...)
• CalculateDeltaStateFunction(...)

Used to compute the energy dissipation:

• CalculatePlasticDissipation(...)
• CalculateDeltaPlasticDissipation(...)

Used when IMPLEX is active:

• CalculateImplexPlasticDissipation(...)
• CalculateImplexDeltaPlasticDissipation(...)

for more details look inside of the yield_criterion base class.

## List of yield criteria

Yield Criteria
MisesHuberYieldCriterion(...)
SimoJuYieldCriterion(...)