Full Calibration of an Equation of State for Composition B

Hydrodynamic simulations involving high explosives require an equation of state (EOS) for the unreacted material, the products of the explosion, and a burn model that governs the transition from the reactant to product state. While the functional forms of the EOS models are informed by physics, the parameters of the EOS models must be calibrated to experimental data. In this talk, we present a new calibration for Composition B (Comp B), using the Davis model for the reactants and products and the AWSD model for the burn. New shock to detonation experimental data is leveraged to tune the AWSD model. The wide use of Comp B necessitates accurate modeling of the behavior in hydrodynamic simulations to address issues regarding the safety and performance for use in energetic devices.