Experimental Study of the Characteristics of Internal Explosion Pressure and Power of Thermobaric Explosive

被引：0
|
作者：
Zhang Y.-L. [1 ]
Li Z.-R. [1 ]
Jiang H.-Y. [1 ]
Zhai H.-B. [1 ]
Yuan J.-F. [1 ]
Zhong K. [1 ]
机构：
[1] Xi'an Modern Chemistry Research Institute, Xi'an, 710065, Shaanxi
来源：
Li, Zhi-Rong (lzr204@163.com) | 2018年 / China Ordnance Industry Corporation卷 / 39期
关键词：
Internal explosion; Quasi-static pressure; Shockwave overpressure; Thermobaric explosive; TNT equivalent;
D O I：
10.3969/j.issn.1000-1093.2018.07.011
中图分类号：
学科分类号：
摘要：
In order to study the internal explosion overpressure and power of thermobaric explosive (TBX), the calculation models of shockwave overpressure and quasi-static pressure are established through the theoretical analysis. TBX and TNT grains are tested in explosion vessel. The result shows that the pressure effect induced by internal explosion includes shockwave overpressure and quasi-static pressure. The rise of the quasi-static pressure is accompanied by the multiple reflections of shockwave. When the reflection is over, the quasi-static pressure goes up to the maximum and lasts for a relatively long time. The overpressure peak and quasi-static pressure peak of TBX are increased by 18.0% and 62.9%, respectively, compared with TNT. The TNT equivalents of TBX which are calculated based on overpressure and quasi-static pressure are 1.18 and 1.63, respectively. © 2018, Editorial Board of Acta Armamentarii. All right reserved.
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页码：1333 / 1338
页数：5
相关论文
共 15 条
  • [1] Hu H.-W., Xiao C., Li L., Et al., Review on evaluation methods of blast power in confined space, Chinese Journal of Explosives & Propellants, 36, 4, pp. 1-6, (2013)
  • [2] Li Z.-R., Zhai H.-B., Yan X.-M., Et al., Test method research for the quasi-static pressure on inside-explosive, Chinese Journal of Sensors and Actuators, 29, 2, pp. 208-212, (2016)
  • [3] Xu W.-Z., Wu W.-G., Effects of size of venting holes on the characteristics of quasi-static overpressure in confined space, Journal of High Pressure Physics, 31, 5, pp. 619-628, (2017)
  • [4] Baker W.E., The elastic-plastic response of thin spherical shells to internal blast loading, Journal of Applied Mechanics, 27, 1, pp. 139-144, (1960)
  • [5] Duffey T.A., Romero C., Strain growth in spherical explosive chambers subjected to internal blast loading, International Journal of Impact Engineering, 28, 9, pp. 967-983, (2003)
  • [6] Cao Y.-Z., Lu Z.-S., Guan H.-A., Et al., Numerical simulation of blast flowfields in closed blast-resistant containers, Journal of High Pressure Physics, 15, 2, pp. 127-133, (2001)
  • [7] Zhang Y.-J., Zhang M.-P., Xu S.-L., Et al., Numerical investigation on blast wave propagation and dynamic response of an explosion vessel, Explosion and Shock Waves, 23, 4, pp. 331-336, (2003)
  • [8] Tassia D.P.E., Internal blast test to support the tomahawk and APET programs, Insensitive Munitions & Energetic Materials Technology Symposium, (1996)
  • [9] Lee R.J., Newman K.E., Chemoff D.G., Et al., Combined initial air blast and quasi-static overpressure assessment for pressed aluminized explosives, Proceedings of the 14th International Detonation Symposium, (2010)
  • [10] Jin P.-G., Guo W., Wang J.-L., Et al., Explosion pressure characteristics of TNT under closed condition, Chinese Journal of Explosives & Propellants, 36, 3, pp. 39-41, (2013)
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