Experimental investigations of mechanical and reaction responses for drop-weight impacted energetic particles

作     者：Xiao-Wei Bao Yan-Qing Wu Ming-Yang Wang Feng-Lei Huang 

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

出 版 物：《Acta Mechanica Sinica》 (力学学报（英文版）)

年 卷 期：2017年第33卷第1期

页      面：65-70页

核心收录：

学科分类：08[工学] 080102[工学-固体力学] 0801[工学-力学（可授工学、理学学位）] 

基　　金：supported by the National Natural Science Foundation of China (Grants 11572045 and 11472051) the Defense Industrial Technology Development Program (Grant B1520132004) the General Project of the CAEP Safety and Ammunition Center (Grant RMC2015B03) 

主　　题：HMX energetic particle Drop-weight impact High-speed photography Ignition and combustion Jetting 

摘      要：Low-velocity drop-weight impact experiments on individual and multiple Cyclotetramethylene tetranitramine (HMX) energetic particles were performed using a modified drop-weight machine equipped with high-speed photography components. Multiple particles experienced more severe burning reactions than an individual particle. Comparisons between impacted salt and HMX particle show that jetting in HMX is mainly due to the motion of fragmented particles driven by gaseous reaction products. Velocity of jetting, flame propagation, and area expansion were measured via image processing, making it possible to quantify the chemical reaction or mechanical deformation violence at different stages.