Shock wave propagation characteristics of double layer charge explosion in the air

被引：0
|
作者：
Li M. [1 ]
Jiang J. [1 ]
Wang X. [1 ]
机构：
[1] State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing
来源：
Baozha Yu Chongji/Explosion and Shock Waves | 2018年 / 38卷 / 02期
关键词：
Double layer charge; Impulse; Overpressure; Propagate; Shock wave;
D O I：
10.11883/bzycj-2016-0209
中图分类号：
学科分类号：
摘要：
This paper studies the radial energy output of double-layer charge overpressure detonation based on the tests of single charge and double-layer charge explosion carried out on shock wave overpressure using ideal and non-ideal explosive of TNT, JO-8 and Hesar. The shock wave overpressure at 2, 3, 4 m was measured using the free filed piezoelectric sensor. The pattern of the shock wave overpressure and impulse varying with the distance was obtained by eliminating the zero-drift and integrating the software Origin. The effect of the charge structure and material was also examined. The results show that the overpressure of TNT/JO-8 double-layer charge in the radial direction was not improved as compared with the single charge with the same volume while the shock wave impulse exhibited a positive gain and increased with the distance. The material selection for the double-layer charge has great influence on the shock wave impulse. The overpressure gain at 4 m was about 15% for the non-ideal/ideal charge, which is much more beneficial in the radial output than for the ideal/ideal charge. © 2018, Editorial Staff of EXPLOSION AND SHOCK WAVES. All right reserved.
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页码：367 / 372
页数：5
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