A Calculation Model of Velocity of Tandem EFP with Double Layer Liners

doi:10.3969/j.issn.1000-1093.2017.07.007

Abstract

Abstract: A velocity calculation model of tandem EFP is proposed by analyzing the motion of elements in double-layer liners. The analysis shows that the difference in EFP axial velocities caused by radial velocity plays an important role in the separation of the tandem EFP. The velocity of EFP formed by outside liner increases with the increase in the curvature of outside liner and the thickness ratio of outside liner to inside liner. On the other hand, the velocity of EFP formed by inside liner decreases with the increase in curvature of outside liner, but increases with the increase in thickness ratio of outside liner to inside liner. The calculated results agree well with experimental data and simulated results by LS-DYNA.Key

Key words: ordnancescienceandtechnology, explosion, tandemEFP, doublelayerliners, velocity

CLC Number:

TJ410.3⁺33

WANG Zhe, JIANG Jian-wei, WANG Shu-you, REN Rei-chi. A Calculation Model of Velocity of Tandem EFP with Double Layer Liners[J]. Acta Armamentarii, 2017, 38(7): 1301-1306.

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第38卷
第7期2017 年7月兵工学报ACTA
ARMAMENTARIIVol.38No.7Jul.2017

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