Effect of hydrogen-storage pressure on the detonation characteristics of emulsion explosives sensitized by glass microballoons

Ji-ping Chen; Hong-hao Ma; Yi-xin Wang; Liang-liang Huang; Zhao-wu Shen

Defence Technology (May 2022)

Effect of hydrogen-storage pressure on the detonation characteristics of emulsion explosives sensitized by glass microballoons

Ji-ping Chen,
Hong-hao Ma,
Yi-xin Wang,
Liang-liang Huang,
Zhao-wu Shen

Affiliations

Ji-ping Chen: CAS Key Laboratory of Mechanical Behavior and Design of Materials, Department of Modern Mechanics, University of Science and Technology of China, Hefei, Anhui, PR China
Hong-hao Ma: CAS Key Laboratory of Mechanical Behavior and Design of Materials, Department of Modern Mechanics, University of Science and Technology of China, Hefei, Anhui, PR China; State Key Laboratory of Fire Science, University of Science and Technology of China, Hefei, Anhui, PR China; Corresponding author.
Yi-xin Wang: CAS Key Laboratory of Mechanical Behavior and Design of Materials, Department of Modern Mechanics, University of Science and Technology of China, Hefei, Anhui, PR China
Liang-liang Huang: CAS Key Laboratory of Mechanical Behavior and Design of Materials, Department of Modern Mechanics, University of Science and Technology of China, Hefei, Anhui, PR China
Zhao-wu Shen: CAS Key Laboratory of Mechanical Behavior and Design of Materials, Department of Modern Mechanics, University of Science and Technology of China, Hefei, Anhui, PR China

Journal volume & issue: Vol. 18, no. 5
pp. 747 – 754

Abstract

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In this study, hydrogen-storage glass microballoons were introduced into emulsion explosives to improve the detonation performance of the explosives. The effect of hydrogen-storage pressure on the detonation characteristics of emulsion explosives was systematically investigated. Detonation velocity experiments shows that the change of sensitizing gas and the increase of hydrogen pressure have different effects on the detonation velocity. The experimental parameters of underwater explosion increase first and then decreases with the increase of hydrogen pressure. The decrease of these parameters indicates that the strength of glass microballoons is the limiting factor to improve the detonation performance of hydrogen-storage emulsion explosives. Compared with the traditional emulsion explosives, the maximum peak pressure of shock wave of hydrogen-storage emulsion explosives increases by 10.6% at 1.0 m and 10.2% at 1.2 m, the maximum values of shock impulse increase by 5.7% at 1.0 m and 19.4% at 1.2 m. The stored hydrogen has dual effects of sensitizers and energetic additives, which can improve the energy output of emulsion explosives.

Published in Defence Technology

ISSN: 2214-9147 (Online)
Publisher: KeAi Communications Co., Ltd.
Country of publisher: China
LCC subjects: Military Science
Website: https://www.keaipublishing.com/en/journals/defence-technology/

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