摘要
为了研究装药密度对撞击安全性的影响,针对A-Ⅸ-Ⅱ炸药、B炸药、HMX基含铝炸药压制了不同密度的药柱。用A-Ⅸ-Ⅱ炸药压制了径向呈一定密度分布的药柱,利用400 kg落锤进行了撞击加载试验。结果显示,随着密度的增大,A-Ⅸ-Ⅱ炸药、B炸药、HMX基含铝炸药的起爆阈值增加。对于A-Ⅸ-Ⅱ炸药,当装药密度达到1.680 g·cm-3以上时,起爆阈值没有明显差别。三种炸药的起爆阈值相差不大。当A-Ⅸ-Ⅱ炸药密度分布不均匀时,其起爆阈值有所下降,低于密度相对均匀的药柱。表明装药密度及密度均匀性是影响撞击安全性的两个主要因素。
In order to study the influence of pressing density on impact safety,some explosive charges with different densities were pressed utilizing A-Ⅸ-Ⅱ explosive,composition B,and HMX-based aluminized explosive.The charges of A-Ⅸ-Ⅱ explosive with density distribution in some order in the radial direction were pressed.The impact load test was carried out using a 400 kg weight drop.Results show that,with density increasing,the detonation threshold of A-Ⅸ-Ⅱ explosive,composition B and HMX-based aluminiferous explosive increases.When the density of A-Ⅸ-Ⅱ explosive is more than 1.680 g·cm-3,its detonation threshold has no obvious change,whereas the detonating thresholds of three kinds of explosive have a little difference.When the density of A-Ⅸ-Ⅱ explosive distributes irregularly,its detonation threshold is decreased a little,lower than that of symmetrical density,indicating that pressing density and its asymmetry of charge are two principal factors affecting impacting safety.
出处
《含能材料》
EI
CAS
CSCD
北大核心
2011年第6期705-708,共4页
Chinese Journal of Energetic Materials
关键词
物理化学
高能炸药
装药密度
撞击实验
安全性
physical chemistry
high explosive
density of charge
impact test
safety
