Study on Characteristics of Partial Penetration of Projectile into Steel Panel
-
摘要: 随着现代高新技术的发展提出了对弹丸半侵彻(PEP)的研究,通过弹丸的半侵彻作用使其稳定嵌立于目标靶上,并由其外露部分形成障碍或感应目标伺机作用、或作为受力承载点等方式实现特殊用途。针对新结构弹头开展了弹靶半侵彻过程的数值模拟和靶材流动特性研究,采用量纲理论获得了弹丸半侵彻靶板的主要无量纲组合参量,获得了弹丸侵彻与反弹阶段靶板形变与弹靶系统能量分配特性,并对半侵彻作用机理进行了初步的探讨。最后通过炮射实验验证了实现稳定嵌立于靶板的可行性。Abstract: Study on partial embedment of projectile (PEP) is put forward with the development of modern science and technology. The outer part of PEP standing stably can form an obstacle or induce the selective object to attack it by waiting for the proper chance, or act as the loading point to realize the special application. The research on a new nose shape projectile was carried out by the numerical analysis on process and characteristics of PEP and material testing of rheological behavior. Meanwhile, the main dimensionless group parameters were obtained by dimensional method. The deformation of target and energy evolution of the whole system in the forward and rebound phases of projectile were analyzed. The exploratory development work on mechanics of the PEP action was performed. Ultimately, PEP on steel panel was verified by artillery experiment.
-
Zukas J A, Nicholas T, Swift H F, et al. Impact Dynamics [M]. New York: Wiley, 1982. Zukas J A. High Velocity Impact Dynamics [M]. New York: Wiley-Interscience, 1990. Backman M E, Goldsmith W. The Mechanics of Penetration of Projectiles into Targets [J]. Int J Eng Sci, 1978, 16(1): 1-108. Goldsmith W. Non-Ideal Projectile Impact on Targets: Review [J]. Int J Impact Eng, 1999, 22: 95-395. Qian W C. The Mechanics of Perforation [M]. Beijing: National Defence Industry Press, 1984. 钱伟长. 穿甲力学 [M]. 北京: 国防工业出版社, 1984. Livermore Software Technology Corporation. LS-DYNA 970 Keyword User's Manual [Z]. [S. l. ]: Livermore Software Technology Corporation, 2003. Zhang L, Zhang Z G, Qin X Y, et al. Dynamic Fracture and Mechanical Property of D6A, 921 and 45 Steels under Low Shock Pressure [J]. Chinese Journal of High Pressure Physics, 2003, 17(4): 305-310. (in Chinese) 张林, 张祖根, 秦晓云. D6A、921和45钢的动态破坏与低压冲击特性 [J]. 高压物理学报, 2003, 17(4): 305-310.
点击查看大图
计量
- 文章访问数: 7724
- HTML全文浏览量: 447
- PDF下载量: 472