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International Journal of Energetic Materials and Chemical Propulsion
ESCI SJR: 0.28 SNIP: 0.421 CiteScore™: 0.9

ISSN Imprimir: 2150-766X
ISSN On-line: 2150-7678

International Journal of Energetic Materials and Chemical Propulsion

DOI: 10.1615/IntJEnergeticMaterialsChemProp.2020032591
pages 307-318

FAST COOK-OFF ANALYSIS OF THE PBXN-5 BOOSTER EXPLOSIVE

Lishuang Hu
School of Environment and Safety Engineering, North University of China, Taiyuan, 030051, Shanxi, P.R. China
Shida Gong
School of Environment and Safety Engineering, North University of China, Taiyuan, 030051, Shanxi, P.R. China
Yang Liu
School of Environment and Safety Engineering, North University of China, Taiyuan, 030051, Shanxi, P.R. China
Lianqiang Li
Institute of Occupational Health of Ordnance Industry, Xi'an, 710065, Shanxi, P.R. China
Chunyu Guang
School of Environment and Safety Engineering, North University of China, Taiyuan, 030051, Shanxi, P.R. China
Xiaoqi Zhi
School of Mechatronics Engineering, North University of China, Taiyuan, 030051, Shanxi, P.R. China
Shuangqi Hu
School of Environment and Safety Engineering, North University of China, Taiyuan, 030051, Shanxi, P.R. China

RESUMO

This paper investigates the effect of different densities and confining materials on violence of the reaction and response times of PBXN-5 booster explosives under fast cook-off conditions. The work recommends the use of booster explosives in explosive trains and also looks at decreasing the vulnerability of the booster explosives in practical use. The results show that when the density of PBXN-5 explosive is about 80% theoretical maximum density (TMD), the reaction is violent. When the densities are from 91.5% to 80.0% TMD, the severity of reaction is stronger. When the density is about 75.0% TMD, the charge just deflagrates. When the density is about 93.0% TMD, the pressure burst occurs. The response times of reaction could be delayed by using high-strength shells.

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