Performance of Different Projectile Nose Shapes in Normal Penetrating Armor Targets

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Abstract:

Based on the cavity expansion theory, an analysis model of normal penetration of slender nose projectile into armor targets was established, and the variation relation curve of penetration depth and initial velocity when initial velocity is below ballistic limit was obtained. By carrying out ballistic impact test using 85mm smoothbore gun, various projectile nose shapes and armor target thickness and their effect on damage were considered. The research results have indicated that the damage of target is mainly ductile reaming and the shape of crater is almost the same as the projectile nose embedded in the target. Within a relatively low velocity range, nose shape has a greater influence on penetration depth. In contrast, within a relatively high velocity range, the target thickness has a greater influence on penetration depth. It can provide theoretical basis for the design of projectile noses and analysis of anti-penetration performance of armor targets.

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Periodical:

Advanced Materials Research (Volumes 308-310)

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1420-1425

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Online since:

August 2011

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© 2011 Trans Tech Publications Ltd. All Rights Reserved

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[1] Backman EM, Goldsmith W. The mechanics of penetration of projectiles into targets[J]. Int J Eng Sci 1978;16:1–99

Google Scholar

[2] Corbett GG, Reid SR, Johnson W. Impact loading of plates and shells by free-flying projectiles: a review[J]. Int J Impact Eng1996;18:141–230.

DOI: 10.1016/0734-743x(95)00023-4

Google Scholar

[3] QIAN Weichang. The mechanics of perforation[M].beijing:National Defence Industry Press 1984(in Chinese)

Google Scholar

[4] ZHAO Guozhi. The engineering mechanics of perforation[M].beijing: Enginery Industry Press 1992(in Chinese)

Google Scholar

[5] Goldsmith W. Review: non-ideal projectile impact on targets[J]. Int J Impact Eng 1999;22:95–395.

DOI: 10.1016/s0734-743x(98)00031-1

Google Scholar

[6] J.A. Zukas. D.R. Scheffler. Impact effects in multilayered plates[J]. Int J Solids and Structures 2001;38:3321–3328.\

DOI: 10.1016/s0020-7683(00)00260-2

Google Scholar

[7] Chen XW, Li QM. Deep penetration of a non-deformable projectile with different geometrical characteristics[J]. Int J Impact Eng2002;27:619–37.

DOI: 10.1016/s0734-743x(02)00005-2

Google Scholar

[8] Li QM, Chen XW. Dimensionless formulae for penetration depth of concrete target impacted by a non-deformable projectile[J].Int J Impact Eng 2003;28(1):93–116.

DOI: 10.1016/s0734-743x(02)00037-4

Google Scholar

[9] Q.M. Li, H.J. Weng, X.W. Chen. A modified model for the penetration into moderately thick plates by a rigid, sharp-nosed projectile[J]. Int J Impact Eng 2004;30:193–204.

DOI: 10.1016/s0734-743x(03)00067-8

Google Scholar