Numerical Simulation on Formation and Penetration of Double-layer Liners EFP Warhead Influenced by Multi-point Initiation

doi:10.3969/j.issn.1000-1093.2016.12.007

Abstract

Abstract: Initiation modes have important influence on formation and penetration of double-layer liners explosively-formed projectile (EFP). Based on the experimental study of double-layer liners EFP warhead, the effect of multi-point initiation on the formation and penetration of EFP warhead with double-layer liners is analyzed by using ANSYS/LS-DYNA software. Results show that the EFP warhead with double-layer liners can form a large aspect ratio of L/D(the length/diameter) penetrator with good flight characteristics and terminal effects when the number of initiation points are between 4 and 8. As the number of initiation points reach 6, the maximum penetration depth is about 1.07 times of the charge diameter which is increased by 32% compared with an initiation point in the same shape charge structure. The conclusions can supply a theoretical reference for choosing the appropriate initiation point parameters of the double-layer liners EFP warhead.

Key words: ordnance science and technology, double-layer liner, multi-point initiation, formation, penetration

CLC Number:

TJ410.3⁺33

LONG Yuan, LIU Jian-feng, JI Chong, ZHONG Ming-shou, LIU Ying, ZHOU Hui. Numerical Simulation on Formation and Penetration of Double-layer Liners EFP Warhead Influenced by Multi-point Initiation[J]. Acta Armamentarii, 2016, 37(12): 2226-2234.

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