Abstract
In our previous experiments on disruption of metal shaped-charge jets by a capacitor-bank current, we attained almost complete disruption of the entire jet. In those experiments, the distance between the shaped charge and the current electrodes was approximately equal to the diameter of the shaped-charge cavity. Physically, jet disruption by a high current consisted of initial development of MHD instability of the jet in the form of growth of necks and subsequent electric explosion of the necks. The present paper describes similar experiments in which the distance between the shaped charge and electrodes was increased. It is shown that this can worsen results of jet disruption because the change in the initial state of the jet changes the physical picture of the process of jet disruption by a current. Key words: shaped-charge effect, shaped-charge jet, capacitor bank, MHD instability, electric explosion of a conductor, electric-current pulse.
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REFERENCES
G. A. Shvetsov, A. D. Matrosov, and A. I. Pavlovskii, “Current instability of shaped-charge jets," in: Proc. of the 10th Int. Pulsed Power Conf. (1995), pp. 1136–1141.
G. A. Shvetsov and A. D. Matrosov, “Experimental investigation of the current instability of shaped-charge jets," in: Megagauss and Megaampere Pulsed Technology and Applications (collected scientific papers) [in Russian], Inst. of Exp. Phys., Sarov (1997), pp. 979–986.
A. V. Babkin, V. A. Kruzhkov, S. V. Ladov, et al., “Behavior of metal jets under the action of a current pulse," ibid., pp. 992–997.
G. A. Shvetsov, A. D. Matrosov, A. V. Babkin, et al. “Behavior of metallic shaped-charge jets with passage of a pulsed electric current through them," J. Appl. Mech. Tech. Phys., 41, No. 3, 394–400 (2000).
S. F. Fedorov, A. V. Babkin, S. V. Ladov, et al. “On the possibilities of controlling the shaped-charge effect of explosion using electromagnetic actions," Combust. Expl. Shock Waves, 36, No. 6, 792–808 (2000).
G. A. Shvetsov, A. D. Matrosov, A. V. Babkin, et al., “Disruption of shaped-charge jets due to axial current," in: Proc. of the 18th Int. Symp. on Ballistics, Vol. 1, San Antonio (1999), pp. 581–587.
C. E. Pollock, “Electromagnetic effects of the natural hydrodynamic instability of stretching, high velocity, metallic jets," in: Megagauss Magnetic Field Generation and Pulsed Power Applications, Nova Sci. Publ., New York (1994) pp. 309–316.
A. I. Pavlovskii, L. N. Plyashkevich, A. M. Shuvalov, G. and A. Ya. Brodskii, “Experimental studies of the disruption of a shaped-charge jet by a current pulse," Zh. Tekh. Fiz., 64, No. 2, 76–82 (1994).
A. I. Pavlovskii, L. N. Plyashkevich, A. M. Shuvalov, and A. Ya. Brodskii, “Investigation of some features of the disruption of a shaped-charge jet by a high current," Zh. Tekh. Fiz., 64, No. 5, 43–48 (1994).
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Plyashkevich, L.N., Shuvalov, A.M., Spirov, G.M. et al. Disruption of Shaped-Charge Jets by a Current. Combustion, Explosion, and Shock Waves 38, 602–605 (2002). https://doi.org/10.1023/A:1020355021586
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DOI: https://doi.org/10.1023/A:1020355021586