Material Model Validation

Once a material model has been selected and calibrated to the test data, Veryst recommends validating the model by performing a test with a stress state different from any used for calibration.  This test can be complex and include inhomogeneous deformation.  Such a test ensures that the model can accurately represent the material in load cases other than those encountered during the tests.  We recommend performing, when possible, a test that is representative of the stress state the product will experience.  Some tests we often recommend are:

Veryst also designs custom test geometries and fixtures to mimic best the stress state of a particular application or problem.  For more information on validation testing, write to us at

VNotch Material Model Validation
Shear strain contours computed using Digital Image Correlation (DIC) from an Iosipescu (V-notch) test on a thermoplastic material


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