Based on the pore collapse energy model, a new thermodynamic equation of state was derived to predict and describe the Hugoniot behavior of the silicon rubbers foam with different initial states. The model was tested on the silicon rubbers foam with initial densities of 0.52 g/cm³ and 0.92 g/cm³, respectively. Compared with the corresponding experimental data published previously, the results showed that this Hugoniot model can satisfactorily predict the Hugoniot behavior of silicon rubber foam.

silicon rubber foam  /  porous materials  /  shock Hugoniot  /  pore collapapse