.. _V6.03.145:

**v6.03.145** SSNP145 — Validation of PRED_ELAS control in plasticity
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**Summary:**

The use of softening laws can lead to brutal snap-backs that make it difficult to perform the calculation. To monitor these instabilities, two types of control are available in Code_Aster: control by elastic prediction (PRED_ELAS), which depends on the law of behavior, and generic deformation control (DEFORMATION). In the case of models with non-damaging elasto-plastic behavior, it is possible to use elastic prediction control. This adds the possibility of controlling materials with a work-hardening plate (perfectly plastic behavior) but also makes it possible to mix plastic materials (for example reinforcements in concrete) with damaging materials.


.. toctree::
    :hidden:

    self

.. toctree::
    :maxdepth: 2
    :numbered:

    Probl_me_de_r_f_rence
    Solution_de_r_f_rence
    Mod_lisation_A
    Mod_lisation_B
    Mod_lisation_C
    Synth_se_des_r_sultats