.. _U4.51.03:

**u4.51.03** Operator STAT_NON_LINE
====

**Summary:**

Calculate the coupled mechanical or thermo-hydro-mechanical evolution, in a semi-static or in
dynamic, with a non-linear structure.

Nonlinearity is related either to the behavior of the material (for example plastic) or to the
geometry (for example in large displacements) or in contact and friction.

For details on the resolution method used, refer to the documentation.
reference [:ref:`R5.03.01 <Algorithme non linéaire quasi-statique>`]

Evolution can be studied in several successive studies (re-entering concept), either by
continuation (the last moment calculated is the initial moment of the next calculation), or again
starting from an earlier moment.

Produces an evol_noli data structure.

.. toctree::
    :hidden:

    self

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

    Syntaxe
    Contenu_EVOL_NOLI
    Parametres_Generaux
    Parametrisation_Calcul
    Reglages_Solveurs_Non_Lineaires
    Chargements
    Pilotage
    Reglages_Convergence
    Reglages_Solveur_Lineaire
    Comportements_Non_Lineaires
    Criteres_qualite
    Reprises_Archivage
    Contact
    PostStab
    Energie
    SubStructuring
    Monitoring