.. _V1.01.219:

**v1.01.219** ZZZZ219 - AFFE_CHAR_MECA: validating the FACE_IMPO keyword
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**Summary:**

The objective of this test case is to validate the FACE_IMPO keyword from the AFFE_CHAR_MECA operator. This keyword makes it possible to impose one or more degrees of freedom values on all the nodes of a face on surface or solid elements.

In this test case, FACE_IMPO is verified under the following conditions:


* FACE_IMPO/SANS_GROUP_MA


* FACE_IMPO/SANS_NOEUD


* FACE_IMPO/SANS_GROUP_NO

In this very simple test case (MODELISATION ='C_ PLAN '), all the movements of the 6 nodes of the mesh are imposed. It is therefore easy to verify that the boundary conditions are respected.

This documentation is deliberately brief.