This paper presents an analysis of the possibility of increasing the ultimate stretching and penetration capability of metallic shaped-charge jets in the presence of an axial magnetic field in the shaped-charge liner due to heating and thermal softening of the jet material as a result of a sharp increase in the magnetic-field induction in the jet formation region upon liner collapse. This process is studied by numerical simulation in a quasi-two-dimensional formulation taking into account the inertial stretching of the conductive rigid-plastic rod in the presence of a longitudinal magnetic field in it.
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M. A. Lavrentyev, “Shaped Charge and the Principles of Its Operation,” Usp. Mat. Nauk 12 (4), 41–56 (1957).
S. B. Fedorov, A. V. Babkin, and S. V. Ladov, “Influence of the Magnetic Field Produced in the Liner of a Shaped Charge on its Penetrability,” Fiz. Goreniya Vzryva 35 (5), 145–146 (1999) [Combust., Expl., Shock Waves 35 (5), 598–599 (1999)].
S. B. Fedorov, A. V. Babkin, S. V. Ladov, et al., “Possibilities of Controlling the Shaped Charge Effect by Electromagnetic Actions,” Fiz. Goreniya Vzryva 36 (6), 126–145 (2000) [Combust., Expl., Shock Waves 36 (6), 792–808 (2000)].
S. V. Fedorov, “The Effects of Magnetic-Field Amplification in Metals under High-Speed Deformation,” in Khariton’s Scientific Readings, Proc. 7th Int. Conf. [Institute of Experimental Physics (VNIIEF), Sarov, 2005], pp 490–496.
S. V. Fedorov, “Magnetic-Field Amplification in High-Speed Jet Flows of Metals,” Prikl. Fiz., No. 4, 33–39 (2004).
L. D. Landau and E. M. Lifshits, Course of Theoretical Physics, Vol. 8: Electrodynamics of Continuous Media (Nauka, Moscow, 1982; Pergamon, New York, 1984).
G. A. Shvetsov, A. D. Matrosov, S. V. Fedorov, et al., “Effect of External Magnetic Fields on Shaped-Charge Operation,” Int. J. Impact Eng. 38 (6), 521–526 (2011).
S. B. Fedorov, A. V. Babkin, S. V. Ladov, et al., “On the Possibility of Reducing the Penetration Capability of Shaped-Charge Jets in a Magnetic Field,” Prikl. Mekh. Tekh. Fiz. 48 (3), 112–120 (2007) [J. Appl. Tech. Phys. 48 (3), 393–400 (2007)].
S. V. Fedorov, A. V. Babkin, and S. V. Ladov, “Magnetocumulative Effect during Explosion of a Shaped Charge with an Axial Magnetic Field Produced in the Charge Liner,” Zh. Tekh. Fiz. 73 (8), 111–117 (2003).
A. V. Babkin, S. V. Ladov, V. M. Marinin, and S. V. Fedorov, “Regularities of the Stretching and Plastic Failure of Metal Shaped-Charge Jets,” Prikl. Mekh. Tekh. Fiz. 40 (4), 25–35 (1999) [J. Appl. Tech. Phys. 40 (4), 571–580 (1999)].
A. V. Babkin, P. A. Bondarenko, S. V. Fedorov, et al., “Limits of Increasing the Penetration of Shaped-Charge Jets by Pulsed Thermal Action on Shaped-Charge Liners,” Fiz. Goreniya Vzryva 37 (6), 124–132 (2001) [Combust., Expl., Shock Waves 37 (6), 727–733 (2001)].
A. V. Babkin, S. V. Ladov, V. M. Marinin, and S. V. Fedorov, “Characteristics of Inertially Stretching Shaped-Charge Jets in Free Flight,” Prikl. Mekh. Tekh. Fiz. 38 (2), 3–9 (1997) [J. Appl. Tech. Phys. 38 (2), 171–176 (1997)].
H. Knoepfel, Pulsed High Magnetic Fields (North Holland, Amsterdam–London, 1970).
G. R. Johnson and W. H. Cook, “Constitutive Model and Data for Metals Subjected to Large Strains, High Strain Rates, and High Temperatures,” in Proc. of the 7th Int. Symp. Ballistics (Hague, Netherlands, 1983), pp. 541–547.
S. V. Fedorov, “Magnetic-Field Amplification in Metal Shaped-Charge Jets during Their Inertial Stretching,” Fiz. Goreniya Vzryva 41 (1), 120–128 (2005) [Combust., Expl., Shock Waves 41 (1), 106–113 (2005)].
V. M. Marinin, A. V. Babkin, and V. I. Kolpakov, “Method of Calculating the Operating Parameters of a Shaped-Charge Charge,” Oboron. Tekh., No. 4, 34–39 (1995).
S. V. Fedorov, A. V. Babkin, A. V. Golovachev, and S. V. Ladov, “Influence of the Small-Diameter Channel on the Penetrability of a Shaped-Charge Jet,” Oboron. Tekh., No. 1/2, 52–58 (2001).
Translated from Prikladnaya Mekhanika i Tekhnicheskaya Fizika, Vol. 57, No. 3, pp. 108–120, May–June, 2016.
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Fedorov, S.V. Thermal softening of metallic shaped-charge jets formed by the collapse of shaped-charge liners in the presence of a magnetic field. J Appl Mech Tech Phy 57, 483–493 (2016). https://doi.org/10.1134/S0021894416030123
- shaped-charge jet
- shaped-charge liner
- magnetic field
- induction heating
- thermal softening
- ultimate stretching