ABSTRACT
Elastomer foam materials are shock absorbers that could be used to attenuate severe impact shock in military and civilian applications. This chapter reviews the material models in ABAQUS and LS-DYNA that could be used to model elastomer foams. The Hyperfoam model is based on the hyperelastic material theory. Curve fitting algorithm is used to fit a strain energy function to the input test data. With the Hyperfoam model, the experimental stress-strain data could be specified for up to five simple tests: uniaxial, equibiaxial, simple shear, planar, and volumetric. Experimental tests for input test data collection to build the material models are recommended in the chapter. Input decks for these material models have been developed. In addition, experimental verification tests have been conducted to evaluate the performance of these material model input decks. The chapter also presents a comparison of simulation results with the verification test data.
