Abstract
The inertial stretching of a metal shaped-charge jet in the magnetic field of a long solenoid is considered. The purpose of the magnetic field influence on the shaped-charge jet is to slow down the development of plastic instability of the jet with an increase in its ultimate elongation and penetration ability. Using a number of simplifying assumptions, an analytical description of electromagnetic processes in the jet section during its motion in the solenoid cavity and after exit from it is obtained. The induction heating of the jet section and the stress state in it under the action of electromagnetic forces are calculated in relation to the conditions of previous experiments with the influence of the magnetic field of solenoids on shaped-charge jets. The obtained results are used to substantiate the hypothesis about the possible cause of a large discrepancy in the experimental data of different authors on the increase in the penetrative action of shaped charges.
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