You use the Gurson material model to analyze structural components that experience plasticity and damage in porous ductile metals.

See Rate-Independent Plasticity for a more detailed description of the Gurson Material Model.

You define the Gurson model with yield function inputs which allow the growth to occur. You can then optionally combine the yield function with a nucleation model controlled by stress or strain, and/or, a coalescence model.

Once you insert the Gurson Model, the Gurson - Additional Data category displays in the Toolbox so that you can add the optional additional models:

You may specify either stress or strain but not both.