This example problem demonstrates the hyperelastic curve-fitting capabilities used to select constitutive model parameters to fit experimental data. Several issues that influence the accuracy of the curve fit are discussed. Validation of the resulting constitutive model is demonstrated by comparison with a tension-torsion experiment.

You can also perform this example analysis entirely in the Ansys Mechanical Application. For more information, see Calibrating and Validating a Hyperelastic Constitutive Model in the Mechanical Technology Showcase: Example Problems.