Assessing the energy release characteristics during the middle detonation reaction stage of aluminized explosives

作     者：Kun Yang Lang Chen Danyang Liu Bin Zhang Jianying Lu Junying Wu Kun Yang;Lang Chen;Danyang Liu;Bin Zhang;Jianying Lu;Junying Wu

作者机构：State Key Laboratory of Explosion Science and TechnologyBeijing Institute of TechnologyBeijing 100081China 

出 版 物：《Defence Technology（防务技术）》 (Defence Technology)

年 卷 期：2024年第33卷第3期

页      面：270-277页

核心收录：

学科分类：081702[工学-化学工艺] 08[工学] 0817[工学-化学工程与技术] 

基　　金：supported by the National Natural Science Foundation of China(Grant No.11832006) 

主　　题：Aluminized explosive Non-ideal detonation Water push test Energy release 

摘      要：Afterburning behind the detonation front of an aluminized explosive releases energy on the millisecond timescale,which prolong the release of detonation energy and the energy release at different stages also shows significant ***,at present,there are few effective methods for evaluating the energy release characteristics of the middle reaction stage of such explosives,which can have a duration of tens to hundreds of *** present work demonstrates an approach to assessing the midstage of an aluminized explosive detonation based on a water push test employing a high degree of *** this method,the explosive is contained in a steel cylinder having one end closed that is installed at the bottom of a transparent water *** detonation,the gaseous products expand in one direction while forcing water ahead of *** resulting underwater shock wave and the interface between the gas phase products and the water are tracked using an ultra-high-speed framing and streak *** shock wave velocity in water and the expansion work performed by the gaseous detonation products were calculated to assess the energy release characteristics of aluminized explosives such as CL-20 and RDX in the middle stage of the detonation *** the middle stage of the detonation process of these aluminized explosives,the aluminum reaction reduced the attenuation of shock waves and increased the work performed by gas phase products.A higher aluminum content increased the energy output while the presence of oxidants slowed the energy release *** work demonstrates an effective means of evaluating the performance of aluminized explosives.