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Experimental Testing Techniques for Polymers

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  • Experimental Testing Techniques for Polymers

    Experimental testing can be performed for different reasons. Sometimes the purpose is simple to make sure that a material satisfies a given set of requires property values. Other times the purpose is to obtain sufficient experimental data to calibrate a suitable material model. When the goal of the testing is to calibrate a material model then the testing can be performed using "smart experiments" in order to obtain as much information as possible using as few tests. The required number of tests will depend on the material behavior and the material model that will be used. If a material is isotropic then it is frequently sufficient to perform only uniaxial tests with multiple load-relax-unload cycles.

    When possible, I also typically recommend that validation tests be performed. Validation tests are specific tests that are typically multiaxial and are specifically designed to probe the material in a way that is similar to the intended application. The calibrated material model will then be used in Finite Element (FE) simulations of the validation experiments. If the calibrated material model match the validation results then the material model likely provides a reasonable representation of the true material response. Validation experiments are often performed using Small Punch testing, V-notch shear testing, or Indentation testing.

    Contact me if you are interested in obtaining a quotation for experimental characterization of validation testing.
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