Behavior of Metallic Shaped-Charge Jets Under the Action of a Current Pulse

The paper reports results of experimental and numerical studies of the disruption of metallic shaped-charge jets (SCJ) through which a pulsed electric current is passed. The action of an electric current leads to a significant change in the jet "structure" and a decrease in the time required for jet disruption that, in turn, decreases the cavern depth in the target. Numerical simulation of the disruption of SCJ due to axial current was performed for the following three disruption mechanisms: a) development of the MHD instability of the SCJ, b) volume disruption, and c) joint manifestation of these mechanisms. The experimental data on the final depth of caverns in the target are compared with results of numerical simulation.