Simulations Predicting the Effects of Detonation Velocity on the Speed and Temperature of Shaped Charge Jets
Technical Report,01 Mar 2019,31 May 2020
CCDC Army Research Laboratory Aberdeen Proving Ground United States
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In this report, I evaluate the effects of a warheads detonation velocity on the resulting speed and thermodynamic state of shapedcharge jets using the multiphysics code, ALEGRA. Specifically, I investigate a 65-mm, bare, shaped charge jet, generated fromexplosives that feature detonation velocities ranging from 6.84 to 9.11 kms with a fixed geometry. Data showed a general trendfor all cases a hot axis that cools off with increasing radius according to a second-order polynomial. At higher detonationvelocities, the jet axis is predicted to be liquid. This is coincident with copper material that is faster along the axis and leads thejet tip, forming a proboscis. At slower velocities this phenomena vanishes and the jet appears to be a solid.
- Ammunition and Explosives