Dynamic Response at High-Explosive Inert-Solid Interface as Predicted by Finite Difference/Element Computer Programs

摘要

A one-dimensional model of high explosive charge was designed to test the computational results of shock wave propagation predicted by three two-dimensional solid dynamics computer programs. The test showed excellent agreement of the wave patterns and the pressure-velocity history profiles at the material interface as the stress waves resulting from the high explosive detonation interacted with inert solid materials. The peak pressure and the particle velocity at the interface were estimated with a simple one-dimensional analysis. The corresponding values from all three program calculations agreed well with the estimates. 8 refs., 16 figs., 1 tab. (ERA citation 14:018152)