Material Models
There are many material models available for structural analysis in COMSOL Multiphysics. In this section, theory for all material models is presented. The material models available, and also some detailed aspects of them, depend on which licenses you have. The material models, grouped by families, are as follows:
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You can also add a material model which you have coded yourself and made available as a binary library file using an External Stress-Strain Relation.
In the COMSOL Multiphysics Reference Manual: