This section describes how you can define additional types of material models. The following topics are covered:
“Defining an acoustic medium,” Section 12.10.1
“Defining electrical properties,” Section 12.10.2
“Defining mass diffusion,” Section 12.10.3
“Defining a fluid-filled porous material,” Section 12.10.4
“Defining gasket behavior,” Section 12.10.5
“Defining equations of state,” Section 12.10.6
