# CSMm 2.5.Constitutive Laws

(Difference between revisions)
 Revision as of 11:53, 24 September 2013 (view source)Cpuigbo (Talk | contribs)← Older edit Latest revision as of 11:22, 3 October 2013 (view source) (12 intermediate revisions by 2 users not shown) Line 1: Line 1: + [[Category: CSMm 2.Structure]] [[Category: CSMm 2.5.Constitutive_Laws]] [[Category: CSMm 2.5.Constitutive_Laws]] + + For the moment one can use a simple elastic model or a more complex elasto-plastic model with a VonMisses yield criterion: + + + *'''Elastic model''' + + + $\boldsymbol{\sigma = D \cdot \epsilon}$ + + + *'''Elasto-Plastic model:''' + + + It uses a '''Von Mises''' yield criterion: plastic yielding starts when the elastic energy stored in changes of shape reaches a critical value. + + + + +

## Latest revision as of 11:22, 3 October 2013

For the moment one can use a simple elastic model or a more complex elasto-plastic model with a VonMisses yield criterion:

• Elastic model

$\boldsymbol{\sigma = D \cdot \epsilon}$

• Elasto-Plastic model:

It uses a Von Mises yield criterion: plastic yielding starts when the elastic energy stored in changes of shape reaches a critical value.