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