.. _U3.13.01:

**u3.13.01** Modelings AXIS, D_ PLAN, C_ PLAN
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**Summary:**

The models AXIS, D_ PLAN, C_ PLAN (Phenomenon: mechanical) correspond to finite elements whose support meshes are surface.

The modeling assumptions are as follows:


* AXIS for axisymmetry (Fourier mode 0) along the Y axis,


* D_ PLAN for plane deformations,


* C_ PLAN for plane constraints.

This document describes:


* the degrees of freedom carried by the finite elements that support modeling,


* the related support meshes,


* the loads supported,


* non-linear possibilities,


* test cases implementing the models.


.. toctree::
    :hidden:

    self

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

    Discr_tisation
    Chargements_support_s
    Possibilit_s_non_lin_aires
    Exemples_de_mise_en__uvre__cas-tests