厚金属靶在弹丸打击下的侵彻与穿透

文鹤鸣

doi:10.11858/gywlxb.2002.02.003

厚金属靶在弹丸打击下的侵彻与穿透

doi: 10.11858/gywlxb.2002.02.003

文鹤鸣

中国科学技术大学材料力学行为和设计重点实验室，安徽合肥 230027

详细信息

通讯作者:
文鹤鸣

计量
- 文章访问数: 8233
- HTML全文浏览量: 569
- PDF下载量: 876
出版历程
- 收稿日期: 2001-12-24
- 修回日期: 2002-02-05
- 发布日期: 2002-06-05

Penetration and Perforation of Thick Metallic Targets under Impact by Missiles

WEN He-Ming

Laboratory for Mechanical Behaviour and Design of Materials, University of Science and Technology of China, Hefei 230027, China

More Information

Corresponding author: WEN He-Ming

摘要

摘要: 给出了预测厚金属靶在不同形状弹头弹丸大速度范围内打击下侵彻与穿透的简单分析方程。在方程的建立过程中，假定变形是局部化的、冲击能量仅由侵彻过程吸收，并进一步假定靶材料对弹丸的平均阻（压）力由两部分组成：一部分基于空穴膨胀理论由于靶材料弹-塑性变形所产生的准静态凝聚阻力；另一部分是考虑了速度效应后的动压力。推导出了预测靶侵彻深度和弹道极限的方程表达式，并与金属靶在不同形状弹头弹丸大速度范围内打击下侵彻与穿透的实验进行了比较。理论预测与实验结果吻合得很好。
- 冲击 /
- 侵彻 /
- 穿透 /
- 金属靶 /
- 弹丸 /
- 弹道极限
Abstract: Simple analytical equations are given in this paper to predict the penetration and perforation of thick metallic targets under normal impact by missiles with different nose shapes over a wide range of impact velocities. In the formulation, it is assumed that the deformations are localized and that the impact energy is dissipated only by penetration. It is further assumed that the mean pressure offered by the target materials to resist the missiles consists of two parts. The first is a cohesive quasi-static resistive pressure due to the elastic-plastic deformation of the target materials based upon a cavity expansion formula. The second is a dynamic resistive pressure defined as a velocity-dependent enhancement factor applied to the quasi-static resistance. Equations are derived for predicting the D. O. P. (Depth of Penetration) in the targets and the ballistic limits in the case of perforation. It transpires that the model predictions are in good agreement with experimental data for a wide range of metallic targets struck transversely by missiles with different nose shapes over a wide range of impact velocities.
- impact /
- penetration /
- perforation /
- metallic targets /
- missiles /
- ballistic limit

HTML全文

参考文献(20)

Backman M E, Goldsmith W. The Mechanics of Penetration of Projectile into Targets [J]. Int J Eng Sci, 1978, 16: 1-99.

Zukas J A. Penetration and Perforation of Solids [A]. Zukas J A. Impact Dynamics [C]. New York: John Wiley, 1982. 155-214.

Anderson C E Jr, Bodner S R. Ballistic Impact: The Status of Analytical and Numerical Modelling [J]. Int J Impact Eng, 1988, 7: 9-35.

Corbett G G, Reid S R, Johnson W. Impact Loading of Plates and Shells by Free-Flying Projectiles: A Review [J]. Int J Impact Eng, 1996, 18(2): 141-230.

Wen H M, Jones N. Semi-Empirical Equations for the Perforation of Plates Struck by a Mass [A]. Bulson P S. Structures under Shock and Impact II [C]. Southampton and Boston and Thomas Telford, London: Computational Mechanics Publications, 1992: 369-380.

Wen H M. Predicting the Penetration and Perforation of FRP Laminates Struck Normally by Projectiles with Different Nose Shapes [J]. Composite Structures, 2000, 49: 321-329.

Johnson W. Impact Strength of Materials [M]. London: Edward Arnold, 1972.

Hill R. The Mathematical Theory of Plasticity [M]. Oxford: Oxford University Press, 1950.

Forrestal M J, Okajima K, Luk V K. Penetration of 6061-T651 Aluminium Targets with Rigid Long Rods [J]. ASME J Appl Mech, 1988, 55: 755-760.

Forrestal M J, Rosenberg Z, Luk V K, et al. Perforation of Aluminium Plates with Conical-Nosed Rods [J]. J Appl Mech, 1987, 54: 230-232.

Luk V K, Amos D E. Dynamic Cylindrical Cavity Expansion of Compressible Strain-Hardening Materials [J]. ASME J Appl Mech, 1991, 58: 334-340.

Dikshit S N, Sundararajan G. The Penetration of Thick Steel Plates by Ogive Shaped Projectiles-Experiment and Analysis [J]. Int J Impact Eng, 1992, 12(3): 373- 408.

Gupta N K, Madhu V. Normal and Oblique Impact of a Kinetic Energy Projectile on Mild Steel Plates [J]. Int J Impact Eng, 1992, 12(3): 333-343.

Forrestal M J, Brar N S, Luk V K. Penetration of Strain-Hardening Targets with Rigid Spherical-Nose Rods [A]. Schwer L E. Computational Techniques for Contact, Impact, Penetration and Perforation of Solids [C]. ASME, 1989, AMD-103: 215-222.

Corbett G G, Reid S R. Quasi-Static and Dynamic Local Loading of Monolithic Simply-Supported Steel Plates [J]. Int J Impact Eng, 1993, 13(3): 423- 441.

Luk V K, Piekutowski A J. An Analytical Model on Penetration of Erosive Long Rods into Metallic Targets [J]. Int J Impact Eng, 1991, 11(3): 323-340.

Anderson C E Jr, Hohler V, Walker J D, et al. Time-Resolved Penetration of Long Rods into Steel Targets [J]. Int J Impact Eng, 1995, 16(1): 1-18.

Ravid M, Bodner S R, Holcman I. A Two-Dimensional Analysis of Penetration by an Eroding Projectile [J]. Int J Impact Eng, 1994, 15(5): 587- 603.

Cullis I G, Lynch N J. Performance of Model Scale Long Rod Projectiles against Complex Targets over the Velocity Range 1700~2200 m/s [J]. Int J Impact Eng, 1995, 17: 263-274.

Grace F I. Long-Rod Penetration into Targets of Finite Thickness at Normal Impact [J]. Int J Impact Eng, 1995, 16(3): 419- 433.

施引文献

资源附件(0)

访问统计