.. _V1.01.394:

**v1.01.394** ZZZZ394 — PRE_EPSI check
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**Summary:**

This test has no physical meaning, it is essentially a computer test.

It aims to validate the PRE_EPSI load of AFFE_CHAR_MECA for 3 types of possible assignments:


* by direct assignment under the PRE_EPSI keyword (via EPXX, EPYY,...)


* by creating a map via CREA_CHAMP, taken into account via the EPSI keyword from PRE_ESPI


* by providing a deformation field from another calculation (also via EPSI)

The principle is as follows: a loading PRE_EPSI is applied to a mesh in which only rigid body movements are blocked. The deformation field is then calculated (EPSI_ELGA or DEGE_ELGA) and it is verified that the values are indeed those that were provided (for several components and several Gauss points).

**Modeling A:**

A DKT element. Assignment by a map and by a field to Gauss points

**Modeling B:**

A DKTG element. Direct assignment

**Modeling** C **:**

A 3D element. Assignment by a field to Gauss points

This documentation is deliberately brief.