Static constitutive equation for Eco-Core the syntactic foam under multi-axial stress state was developed in previous work. The current study was conducted to develop LS-DYNA material model for Eco-Core by using its constitutive equation; and to use the developed material model in LS-DYNA code to simulate the static confined compression test of Eco-Core. The “Low Density Foam” material model was used. It is strain rate insensitive model assumes zero Poisson’s ratio and requires stress strain data input. The constitutive equation of Eco-Core was embedded in the model as a multi-linear stress strain curve input. It is a multi-dimensional equation that requires lateral stress input. Therefore, an additional equation for the lateral stress as a function of axial strain was built in the code. Simulation results of this study agreed very well with the experiments.
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