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- Title
不同约束条件下HMX基含铝炸药的慢烤响应特性.
- Authors
沈飞; 王胜强; 王辉
- Abstract
In order to explore the slow cook-off response characteristics of HMX-based aluminized explosive under different constraint conditions, and provide a basis for the design of the slow release structure of the warhead, the characteristics of the ignition process of the typical pressed HMX-based aluminized explosive were analyzed by slow cook-off test, and the response grade of the explosive was compared by adjusting the strength of the cook-off bomb shell and the section area of the pressure relief channel. The results show that the ignition process of the aluminized explosive during slow cook-off contains three stages, namely, a small amount of gas generation in local region, the expansion of the flameless combustion front, and the flaming combustion. For the cook-off bomb without the pressure relief channel, the reaction rate of the explosive charge will increase rapidly when the internal pressure is greater than a certain critical pressure (between 96. 5 and 193MPa). For the cook-off bombs with stronger constraint strength and the ratio of the pressure relief channel area to the cross-section area of the charge is greater than 30%, it w)N present the combustion reaction of the explosive and the structure of the bomb will be intact. Besides, even if the area of the pressure relief channel is larger enough, the shell with low strength can still be damaged during the pressure relief process.
- Publication
Chinese Journal of Explosives & Propellants, 2019, Vol 42, Issue 4, p385
- ISSN
1007-7812
- Publication type
Article
- DOI
10.140ZZ/j.issn.100Z-Z812.2019.04.012