Numerical Simulation and Experimental Research on Damage of Shaped Charge Warhead to Double-layer Columniform Shell

doi:10.3969/j.issn.1000-1093.2018.01.004

Abstract

Abstract: In order to investigate the underwater explosion characteristic, the damage process of shaped charge warhead to double-layer columniform shell is simulated based on SPH-FEM coupling algorithm. The formation and velocity decay rule of metal jet are analyzed. The damage modes and the characteristics of high-speed metal jet are used to study the effects of strong shock wave and bubble load on double-layer columniform shell structure. The sea model explosion tests were conducted to verify the simulation. The numerically simulated results are in good agreement with the test results. It can be concluded that the damage effects of the shaped charge warhead on double-layer columniform shell include metal jet, shock wave and bubble. The metal jet causes small crevasse on the shell, and the shock wave and bubble cause large holes and plastic hollows on the shell. Key

Key words: shapedchargewarhead, metaljet, double-layercolumniformshell, damagecharacteristic

CLC Number:

TJ410.3⁺33

LI Bing, LIU Nian-nian, CHEN Gao-jie, ZHANG A-man. Numerical Simulation and Experimental Research on Damage of Shaped Charge Warhead to Double-layer Columniform Shell[J]. Acta Armamentarii, 2018, 39(1): 38-45.

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第39卷
第1期2018 年1月兵工学报ACTA
ARMAMENTARIIVol.39No.1Jan.2018