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

LI Mei; JIANG Jianwei; WANG Xin

doi:10.11883/bzycj-2016-0209

Volume 38 Issue 2

Jan. 2018

Turn off MathJax

Article Contents

Article Navigation > Explosion And Shock Waves > 2018 > 38(2): 367-372

LI Mei, JIANG Jianwei, WANG Xin. Shock wave propagation characteristics of double layer charge explosion in the air[J]. Explosion And Shock Waves, 2018, 38(2): 367-372. doi: 10.11883/bzycj-2016-0209

Citation:

LI Mei, JIANG Jianwei, WANG Xin. Shock wave propagation characteristics of double layer charge explosion in the air[J]. Explosion And Shock Waves, 2018, 38(2): 367-372. doi: 10.11883/bzycj-2016-0209

LI Mei, JIANG Jianwei, WANG Xin. Shock wave propagation characteristics of double layer charge explosion in the air[J]. Explosion And Shock Waves, 2018, 38(2): 367-372. doi: 10.11883/bzycj-2016-0209

Citation:

PDF( 2349 KB)

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

doi: 10.11883/bzycj-2016-0209

State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, China

Received Date: 2016-07-14
Rev Recd Date: 2016-12-27
Publish Date: 2018-03-25

Abstract

Abstract

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.
- double layer charge,
- shock wave,
- propagate,
- overpressure,
- impulse

FullText(HTML)

References(12)

References

[1]	ANDREWS S, GLANCY B, FORBES J, et al. Experiments on the modification of the energy release rate in a non-ideal[J]. AIP Conference Proceedings, 1996, 370:799-802. doi: 10.1063/1.50607
[2]	KATO H, MURATA K, ITOH S, et al. Application of overdriven detonation in high density explosive to shaped charge[C]//GALVEZ F, SANCHEZ-GALVEZ V. 23rd International Symposium On Ballistics. Tarragona, Spain: IBC, 2007: 223-230.
[3]	KATO H, MURATA K, ITOH S, et al. Investigation of jet formation with overdriven detonation in high density explosive[J]. Materials Science Forum, 2008, 566:327-332. doi: 10.4028/www.scientific.net/MSF.566
[4]	ZHANG X, HUANG Z, QIAO L. Detonation wave propagation in double-layer cylindrical high explosive charges[J]. Propellants Explosives Pyrotechnics, 2011, 36(3):210-218. doi: 10.1002/prep.v36.3
[5]	张先锋, 赵晓宁.夹层装药的超压爆轰研究综述[J].含能材料, 2011, 19(3):352-360. doi: 10.3969/j.issn.1006-9941.2011.03.024 ZHANG Xianfeng, ZHAO Xiaoning. Review on overpressure detonation of intercalated charge[J]. Chinese Journal of Energetic Materials, 2011, 19(3):352-360. doi: 10.3969/j.issn.1006-9941.2011.03.024
[6]	张先锋, 丁建宝, 赵晓宁.夹层聚能装药作用过程的数值模拟[J].爆炸与冲击, 2009, 29(6):617-624. http://www.bzycj.cn/CN/abstract/abstract8988.shtml ZHANG Xianfeng, DING Jianbao, ZHAO Xiaoning. Numerical simulation of the process of sandwich shaped charge[J]. Explosion and Shock Waves, 2009, 29(6):617-624. http://www.bzycj.cn/CN/abstract/abstract8988.shtml
[7]	向梅. 复合装药的安全性及能量输出特性研究[D]. 南京: 南京理工大学, 2012. http://cdmd.cnki.com.cn/Article/CDMD-10288-1013167456.htm
[8]	章少方. 复合装药爆轰能量输出及冲击波感度的数值模拟研究[D]. 南京: 南京理工大学, 2010. http://cdmd.cnki.com.cn/Article/CDMD-10288-2010096631.htm
[9]	MAYSELESS M, HIRSCH E, HARVEY W B, et al. Is higher detonation velocity needed for shaped-charges[C]//BAKER E, TEMPLETON D. 26th International Symposium on Ballistics. Miami, FL, United States: DEStech Publications Inc., 2011: 155-166.
[10]	COLCLOUGH M E. A novel tuneable effects explosive charge[C]//2012 NDIA IM & EM Symposium. Las Vegas, NV: Nation Defense Industrial Association, 2012: 124-134.
[11]	SLYKE J V, LUDWIG W, GAMBLE J, et al. Effect of convergent detonation on gurney energy and cylinder expansion[C]//WICKERT M, SALK M. 27th International Symposium On Ballistics. Freiburg, Germany: DEStech Publications Inc., 2013: 22-26.
[12]	计冬奎, 高修柱, 肖川.含铝炸药作功能力和JWL状态方程尺寸效应研究[J].兵工学报, 2012, 33(5):552-555. http://manu48.magtech.com.cn/Jwk_bgxb/CN/abstract/abstract450.shtml JI Dongkui, GAO Xiuzhu, XIAO Chuan. Study on dimension effect of accelerating ability and JWL equation of state for aluminized explosive[J]. Acta Armamentarii, 2012, 33(5):552-555. http://manu48.magtech.com.cn/Jwk_bgxb/CN/abstract/abstract450.shtml