Accession Number:

AD1101026

Title:

Simulations Predicting the Effects of Detonation Velocity on the Speed and Temperature of Shaped Charge Jets

Descriptive Note:

Technical Report,01 Mar 2019,31 May 2020

Corporate Author:

CCDC Army Research Laboratory Aberdeen Proving Ground United States

Personal Author(s):

Report Date:

2020-06-01

Pagination or Media Count:

22.0

Abstract:

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.

Subject Categories:

  • Ammunition and Explosives

Distribution Statement:

APPROVED FOR PUBLIC RELEASE