.. _D5.02.02:

**d5.02.02** Introduce a new mesh type or reference element
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**Summary:**

This document describes what to do to introduce a new mesh type in*Cod* e_Aster or a new reference element.

In a few words, to add a new type of mesh and/or a new reference element, you must:


* define and introduce the characteristics of the mesh and/or the reference element in the Code_Aster source: node position, connectivity, shape functions, position of Gauss points,...


* think about the impact on existing functionalities in Code_Aster,


* enrich the "user" documentation (Doc U) and the "reference" documentation (Doc R) relating to the mesh file, shape functions,...


* enrich existing test cases in order to test your new finite element.

A complete example will be described in this document.

 **Table of Contents**




.. toctree::
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    self

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

    Introduction
    Introduction_d_un_nouveau_type_de_maille_ou_un_nouvel__l_ment