Journal of Projectiles, Rockets, Missiles and Guidance >
The Effect of Asymmetry between Liner and Charge on the Penetration Performance of Linear Shaped Charge Jet
Received date: 2012-08-30
Online published: 2025-05-26
The asymmetric linear shaped charges (LSC) were fired at RHA armor steel, and the experimental results were presented. The jet formation and penetration were simulated with finite-element code LS-DYNA3D. For the linear shaped charge configuration, it is suggested that at the eccentric distance between liner and charge is 1mm, the cratering width increases by 12.2%, while the penetration depth decreases by 58%, compared with the symmetric LSC. When the eccentric distance between liner and charge is 1mm, and the corner between the two axes is 5°, the LSC jet loses its 74% penetration capability. The cratering width increases with the asymmetric extent, while the penetration depth decreases.
Key words： mechanics of explosion; linear shaped charge; asymmetry; jet; penetration
ZHOU Peng , LI Rujiang , FANG Zhijian , WANG Jianbo . The Effect of Asymmetry between Liner and Charge on the Penetration Performance of Linear Shaped Charge Jet[J]. Journal of Projectiles, Rockets, Missiles and Guidance, 2013 , 33(4) : 87 -90 . DOI: 10.15892/j.cnki.djzdxb.2013.04.002
| [1] | Brown J, Softly I D, Edwards P. Experimental study of shapedcharges with built-in asymmetries[J]. Propellant, Explo-sives, Pyrotechnics, 1993. 18 (5): 255- 258. |
| [2] | Brown J, Edwards JB. Studies of shaped charges with built-inasymmetries. part II: modelingJ. Propellant, Explo-sives, Pyrotechnics, 1996, 21 (2): 59– 63. |
| [3] | Kelly RJ, Curtis JP, Bremer M. On analytic of casing andliner thickness variations in a shaped chargeJ. J. Appl.Phys, 1994, 75 (1): 96– 103. |
| [4] | Curtis JP. Asymmetric formation of shaped charge jets[C]//17th International Symposium on Ballistics, 1998: 405- 412. |
| [5] | 姜剑生, 杭义洪, 冯其京. 非对称射流形成研究[J]. 兵工学报, 2004, 25 (3): 292- 295. |
| [6] | 秦承森, 石艺娜, 冯其京,等. 非对称射流形成的几何理论(二)——非对称斜碰撞情况[J]. 爆炸与冲击, 2007, 27 (6): 501- 508. |
| [7] | 石艺娜, 秦承森, 冯其京,等. 有限远来流非对称碰撞形成射流研究[J]. 计算物理, 2008, 25 (4): 401- 406. |
| [8] | Ayisit O. The influence of asymmetries in shaped chargeperformanceJ. International Journal of Impact engineer-ing, 2008, 35 (12): 1399– 1404. |
| [9] | 宁强, 方向, 汪明星. 非对称性对线型聚能射流的影响. 弹道学报, 2011, 23 (2): 96– 99. |
/
| 〈 |
|
〉 |