Possible Schemes to Reduce Nose Blunting of High-Speed Projectile into Concrete

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Abstract:

High-speed projectile usually has significantly nose blunting which may decrease performance of projectile. Since the peeling of molten surface layer is the primary cause of mass loss of projectile, the projectile made of refractory material may reduce nose blunting. Two possible schemes to distribute refractory material in projectile are suggested in the present manuscript, i.e. layering refractory material outside the projectile nose surface and using material with gradient melting heat to make projectile nose. Based on one numerical model previously constructed by our team, both schemes are able to reduce nose blunting and enhance performance of projectile.

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Key Engineering Materials (Volumes 535-536)

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526-529

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January 2013

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© 2013 Trans Tech Publications Ltd. All Rights Reserved

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[1] Jones SE, Foster JC, Toness OA, DeAngelis RJ, Rule WK. An estimate for mass loss from high velocity steel penetrators. In: Moody FJ, editor. Proceedings of the ASME PVP-435 Conference on Thermal-Hydraulic Problems, Sloshing Phenomena, and Extreme Loads on Structures. pp.227-237, 2002, New York: ASME

DOI: 10.1115/pvp2002-1149

Google Scholar

[2] Jerome DM, Tynon RT, Wilson LL and Osborn JJ. Experimental observations of the stability and survivability of ogive-nosed, high-strength steel alloy projectiles in cementious materials at striking velocities from 800-1800m/sec. 3rd Joint Classified Ballistics Symposium, May 1-4, 2000, San Diego

Google Scholar

[3] Klepaczko JR, Hughes ML. Scaling of wear in kinetic energy penetrators. Int. J. Impact Eng. 2005; 31(4): 435-459

DOI: 10.1016/j.ijimpeng.2004.02.006

Google Scholar

[4] He LL, Chen XW. Simulation of variation of projectile nose during high-speed penetration into concrete. Chinese Journal of Theoretical and Applied Mechanics, 2011; 43(4): 707-715. (in Chinese)

DOI: 10.1063/2.1202106

Google Scholar

[5] Forrestal MJ, Frew DJ, Hanchak SJ, Brar NS. Penetration of grout and concrete targets with ogive-nose steel projectiles. Int. J. Impact Eng. 1996; 18(5): 465-476

DOI: 10.1016/0734-743x(95)00048-f

Google Scholar

[6] Bourne B, Cowan KG, Curtis JP. Shaped charge warheads containing low melt energy metal liners. Proceedings of the 19th International Symposium on Ballistics, pp.583-590, May 7-11, 2001, Interlaken, Switzerland

Google Scholar

[7] Jing Q, Bi Y, Wu Q, et al. Yield strength of molybdenum at high pressures [J]. Review of Scientific Instruments. 2007; 78(7): 073906

DOI: 10.1063/1.2758549

Google Scholar

[8] Chen XW, He LL, Yang SQ. Modeling on Mass Abrasion of Kinetic Energy Penetrator. European Journal of Mechanics A/Solids 2010; 29(1): 7-17

DOI: 10.1016/j.euromechsol.2009.07.006

Google Scholar