1. Introduction

The purpose of the macro command CALC_EUROPLEXUS is to launch a calculation with the EUROPLEXUS software (EPX in the rest of the document) from a conventional Code_Aster data layout.

Of the features of*Code_Aster*, few are available in CALC_EUROPLEXUS. On the one hand, this is because there must be a very close match between the feature in question in Code_Aster and the equivalent feature in EPX. On the other hand, this functionality must be integrated into the macro command in order to make a correct translation between Code_Aster and EPX.

This document describes as comprehensively as possible how to add a desired feature. In the first part, the structure of the macro command is described succinctly by pointing out the essential information for the developer. This will be followed by three more parts describing:

• the addition of a law of behavior;

• the addition of an element type (and a AFFE_CARA_ELEM keyword);

• the addition of a load.

In each of these cases, we assume that the developer knows in EPX the functionality equivalent to the one he wants to add in Code_Aster.