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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, email


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

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