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

doi:10.3969/j.issn.1000-1093.2018.07.011

Abstract

Abstract: 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. Key

Key words: thermobaricexplosive, internalexplosion, shockwaveoverpressure, quasi-staticpressure, TNTequivalent

CLC Number:

O389

ZHANG Yu-lei， LI Zhi-rong， JIANG Hai-yan， ZHAI Hong-bo， YUAN Jian-fei， ZHONG Kai. Experimental Study of the Characteristics of Internal Explosion Pressure and Power of Thermobaric Explosive[J]. Acta Armamentarii, 2018, 39(7): 1333-1338.

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第39卷
第7期2018 年7月兵工学报ACTA
ARMAMENTARIIVol.39No.7Jul.2018

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