钨珠在穿靶过程中破损问题的数值研究

曹菊珍; 李恩征; 王政

doi:10.11858/gywlxb.2001.02.004

钨珠在穿靶过程中破损问题的数值研究

doi: 10.11858/gywlxb.2001.02.004

北京应用物理与计算数学研究所，北京 100088

详细信息

通讯作者:
曹菊珍

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出版历程
- 收稿日期: 1999-12-29
- 修回日期: 2000-09-04
- 发布日期: 2001-06-05

Numerical Study on the Damaging of Wolfram Balls Flying in Gases

Institute of Applied Physics and Computational Mathematics, Beijing 100088, China

More Information

Corresponding author: CAO Ju-Zhen

摘要

摘要: 使用二维有限元法，研究了直径为6 mm和8.5 mm的预制破片（钨珠、钢珠）以不同速度在稠密气体中飞行时的破损问题，初步确定了珠子破损的阈值速度。研究表明，破损的程度与珠子的速度、材料、大小有密切关系。同时还研究了破损了的破片对6 mm厚钢靶的穿透能力。
- 破片 /
- 破损 /
- 数值模拟
Abstract: The damage of different ball with the diameters of 6 mm (W and Fe) and 8.5 mm (W) flying in a gas with different velocity was studied. The damaging threshold velocities of different balls were obtained. The investigation showed that the damage degree of balls depends on the material, velocity and the size of the balls. The perforating ability of damaged balls to 6 mm thick steel targets was also studied.
- fragment /
- damage /
- numerical simulation

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参考文献(3)

Johnson G R. EPIC-2, A Compute for Elastic-Plastic Impact Computations in 2 Dimensions Plus Spin [R]. ARBRLCD- 00373, 1978.

Johnson G R, Cook W H. Fracture Characteristics of Three Metals Subjected to Various Strains, Strain Rates, Temperatures and Pressures [J]. Journal of Engineering Fracture Mechanics, 1985, 21(1): 31-48.

曹菊珍, 周淑荣, 于志鲁, 等. 钨珠对铝靶、钢靶侵彻的数值研究与分析 [J]. 爆炸与冲击, 1992, 12(3): 199.

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