Study of Penetration Ability and Aftereffect of MEFP with Scored Liner to Finite Thick Double-layer Steel Target

doi:10.3969/j.issn.1000-1093.2014.09.004

Acta Armamentarii ›› 2014, Vol. 35 ›› Issue (9): 1350-1355.doi: 10.3969/j.issn.1000-1093.2014.09.004

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Study of Penetration Ability and Aftereffect of MEFP with Scored Liner to Finite Thick Double-layer Steel Target

XIANG Sheng-hai¹, XU Wen-long^1,2, TANG En-ling¹, LI Ran³, ZHANG Jian¹,

(1.School of Equipment Engineering, Shenyang Ligong University, Shenyang 110159, Liaoning, China;2.State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology，Beijing 100081, China；3.Jilin Jiangbei Machinery Co., Ltd, Northeast Industries Group Co., Ltd, Jilin 132021, Jilin, China；4.College of Mechanical Engineering and Applied Electronics Technology，Beijing University of Technology, Beijing 100124, China)

Received:2013-11-15 Revised:2013-11-15 Online:2014-11-03
Contact: XIANG Sheng-hai E-mail:xiangshenghai@139.com

Abstract

Abstract: The penetration ability and aftereffect of multiple explosively formed projectile (MEFP) with scored liner to a finite thick double-layer steel target are analyzed using ANSYS/LS-DYNA. The results show that the length-to-diameter ratio of charge has little effect on projectile shape, and the groove depth has a significant effect on projectile shape. If other conditions remain unchanged, the increase in thickness of liner leads to the reduction in axial speed of projectile, increasing the erosion amount of liner. Therefore the liner has an optimal thickness value in view of penetration depth; the aftereffect of shallow groove depth is better. The simulation results are consistent with the experimental results.

Key words: ordnance science and technology, MEFP, groove, penetration, finite thick steel target, aftereffect

CLC Number:

TJ414.⁺2

XIANG Sheng-hai, XU Wen-long, TANG En-ling, LI Ran, ZHANG Jian,. Study of Penetration Ability and Aftereffect of MEFP with Scored Liner to Finite Thick Double-layer Steel Target[J]. Acta Armamentarii, 2014, 35(9): 1350-1355.

References

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Study of Penetration Ability and Aftereffect of MEFP with Scored Liner to Finite Thick Double-layer Steel Target

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