8. Summary of results

This test case aims to validate the calculation of the elastoplasticity stress restoration rate:

• • • The A and B models make it possible to ensure the invariance of the calculation of the energy restoration rate by the theta method according to the crowns of integration for elastic—perfectly plastic laws of behavior. The low contribution of second-order terms in the deformation is also noted;

    • E-modeling validates the various methods for defining the work hardening curve.

The C, D and F models make it possible to validate the calculation of the displacement field for the X- FEM models.