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 contact@veryst.com.
 

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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