Aftereffect Overpressure of Reactive Jet Perforating into Reinforced Concrete

doi:10.3969/j.issn.1000-1093.2019.07.005

Abstract

Abstract: In order to investigate the aftereffect overpressure characteristics of reactive jet penetrating into reinforced concrete, the experimental, theoretical and numerical simulation methods are used to study the aftereffect overpressure characteristics of reactive liner shaped charge against reinforced concrete. Experimental results show that, for the same shaped charge configuration, the low density reactive jet produces a larger diameter penetration hole on the reinforced concrete and a higher peak overpressure in a closed space compared with the high density reactive jet, and the overpressure-time curves reveal multi-peaks phenomenon. An equivalent model for aftereffect deflagration overpressure of reactive jet and high explosive explosion is developed by using the virtual explosion point method.AUTODYN-3D finite element analysis shows that the predicted aftereffect overpressure-time curves are well agreement with the experimental results, and the propagation characteristics and multi-peaks phenomenon of reactive jet in the closed space are also revealed. Key

Key words: shapedcharge, reactiveliner, behind-targetoverpressure, reinforcedconcrete, penetration

CLC Number:

TJ410.3⁺33

ZHANG Hao， WANG Haifu， YU Qingbo， ZHENG Yuanfeng. Aftereffect Overpressure of Reactive Jet Perforating into Reinforced Concrete[J]. Acta Armamentarii, 2019, 40(7): 1365-1372.

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第40卷
第7期2019 年7月兵工学报ACTA
ARMAMENTARIIVol.40No.7Jul.2019

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