This article is cited in 3 papers

Specific features of stretching and breaking of shaped-charge jets

V. M. Fomin, V. I. Zvegintsev, E. Ya. Braguntsov

Khristianovich Institute of Theoretical and Applied Mechanics, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, 630090, Russia

Abstract: Stretching and breaking of shaped-charge jets and the behavior of the strained metal are studied with the use of dislocation mechanisms of plastic straining and with due allowance for shock wave processes at the stage of liner implosion and jet stretching. Regular features of shaped-charge jet stretching and breaking are found. Equations are derived for analyzing the influence of the strength and plastic properties of the material, its microstructure, geometric parameters, and kinematic characteristics on jet stretching and breaking.

Keywords: shaped-charge jet, liner, dislocations, plastic straining, strain rate, fragmentation.

UDC: 623.094

Received: 31.10.2018
Revised: 31.10.2019
Accepted: 25.11.2019

DOI: 10.15372/PMTF20200203

 English version: Journal of Applied Mechanics and Technical Physics, 2020, 61:2, 171–180

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