Blog Articles

All about the Mullins Effect

Detailed tutorial on how to: (1) experimentally test the Mullins damage of rubbers and elastomers; (2) calibrate the Ogden-Roxburgh Mullins model; (3) how to distinguish between Mullins damage and viscoelastic effects.

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PolyUMod with Altair Radioss™

Demonstrate how to use a PolyUMod material model with the Radioss explicit FE solver. Information about how to select and calibrate a PolyUMod material model is presented in our “MCalibration for Altair” tutorial.

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What Is A Material Model?

I often get asked to define the terms “Material Model” and “Material Parameter”. This short article tries to explain what these terms mean.

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