# 2.3. Use Finite Element Model

    USE FINITE ELEMENT MODEL <string>model_name

The model specification occurs within the region scope. To specify the model (finite element mesh), use this command line. The string `model_name` must match a name used in a `FINITE ELEMENT MODEL` command block described in Section 6.1. If one of these command blocks uses the name `penetrator` in the command-block line and this is the model we wish to use in the region scope, then we would enter the command line as follows:

    USE FINITE ELEMENT MODEL penetrator