Abstract
Current investigations of energetic structural materials involve shock-induced and shock-assisted chemical reactions in which complex physical processes are only elucidated by computational models of gas gun experiments at the present time. Physics models that describe the equation of state, material strength, heat transfer, and chemical reaction for energetic structural materials must be calibrated with experimental data to obtain material constants. Numerical solutions introduce errors that are difficult to quantify. This paper introduces a verification procedure of a code appropriate for simulation of gas gun experiments with energetic structural materials. Simulated gas gun experiments involving the Ni + Al mixture are used to illustrate the proposed verification procedure. The physics models together with the conservations of mass, momentum, and energy are explicitly solved using a second order finite volume scheme.
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