Experimental Investigation of Ground Reflected Overpressure of Shock Wave in Air Blast

doi:10.3969/j.issn.1000-1093.2016.12.013

Abstract

Abstract: In order to investigate the parameters of shock wave in air blast, the ground reflected overpressures of TNT, HL0（RDX 95%+Wax 5%）and HL15（RDX 80%+Wax 5%+Al 15%） at different locations were tested. Test resultes show that the peak overpressures of HL15 are maximal at 3 m, 4 m and 5 m from the center of explosion compared with TNT and HL0. The peak overpressures of three explosives get closer to each other at 7 m, 9 m and 12 m from the center of explosion with the increase in distance. Power exponential formulas are used to fit the relationship between peak overpressure and scaled distance. The fitting results show that the magnitude order of peak overpressures is HL0≥HL15>TNT for R≤ 2.6 m; the magnitude order of peak overpressures is HL15> HL0 >TNT for 2.6 m

Key words: ordnance science and technology, air blast, reflected overpressure, similarity relationship, power exponential fitting

CLC Number:

O384

DUAN Xiao-yu, CUI Qing-zhong, GUO Xue-yong, JIAO Qing-jie. Experimental Investigation of Ground Reflected Overpressure of Shock Wave in Air Blast[J]. Acta Armamentarii, 2016, 37(12): 2277-2283.

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