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Prikladnaya Mekhanika i Tekhnicheskaya Fizika, 2004, Volume 45, Issue 2, Pages 147–155
(Mi pmtf2366)
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This article is cited in 1 scientific paper (total in 1 paper)
Disruption of shaped-charge jets by a pulsed current
G. A. Shvetsov, A. D. Matrosov Lavrent'ev Institute of Hydrodynamics, Siberian Division, Russian Academy of Sciences, Novosibirsk, 630090
Abstract:
This paper gives results from experimental studies of the effect of electric-pulse parameters on the development of current instability and disruption of shaped-charge jets. A simple physical model for the development of current instability and the decrease in the cavern depth in the target is proposed. Notations are introduced and analytical expressions are obtained for the critical current (critical linear current density) and the ideal shape of the current pulse required for the disruption of shaped-charge jets. It is shown that the estimate of the final cavern depths in steel target for the proposed model is in fairly good agreement with both experimental values of cavern depths in targets and with the results of numerical calculations using quasi-two-dimensional unsteady models of MHD instability and volume disruption.
Keywords:
shaped-charge jet, MHD instability, electromagnetic energy.
Received: 18.12.2003
Citation:
G. A. Shvetsov, A. D. Matrosov, “Disruption of shaped-charge jets by a pulsed current”, Prikl. Mekh. Tekh. Fiz., 45:2 (2004), 147–155; J. Appl. Mech. Tech. Phys., 45:2 (2004), 269–275
Linking options:
https://www.mathnet.ru/eng/pmtf2366 https://www.mathnet.ru/eng/pmtf/v45/i2/p147
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