含能材料2017，Vol.25Issue(6)：472-478,7.DOI:10.11943/j.issn.1006-9941.2017.06.005
铝粉粒度和铝氧比对含铝炸药在密闭空间内爆炸特性的影响
Effect of Aluminum Size and Content on Explosion Performance of Aluminized Explosives in Confined Space
摘要
Abstract
To investigate the influences of aluminum size and content on the performance of aluminized explosives in confined space,experiments were conducted in a fully confined chamber.Two kinds of RDX based explosives with different aluminum oxygen ratio(0.45 and 0.99) containing aluminum of 50 nm,5 μm and 50 μm respectively were used.The data processing method of multipoints averaging for gaining quasic-static pressure and exponential decay similar for gaining the attenuation factor of pressure were proposed.Three characteristic quantities,quasic-static pressure (pQS),rising time of pressure (tQS) and attenuation factor of pressure (ω),were used to characterize the energy release from aluminized explosives in chamber.Results show that for the formulation with aluminum oxygen ratio of 0.45,the pQS of sample with 50 μm aluminum powder is 0.3％ and 0.7％ higher than those with 5 μm and 50 nm aluminum,respectively.For the formulation with aluminum oxygen ratio of 0.99,the pQS of sample containing 50 μm aluminum powder was 31.2％ and 31.9％ higher than those containing 5 μm and 50 nm aluminum powder,respectively,and the pQS of two samples with aluminum oxygen ratio of 0.45 containing the same particle size aluminum powder are larger than the sample with aluminum oxygen ratio of 0.45.With respect to either samples containing the same size of aluminum,with the increase of aluminum oxygen ratio,pQS increased,tQS and ω decreased.关键词
含铝炸药/粒度/铝氧比/密闭空间/爆炸特性Key words
aluminized explosives/aluminum size/aluminum oxygen ratio/confined space/explosion performance分类
军事科技引用本文复制引用
段晓瑜,郭学永,焦清介,赵倩,张静元,张庆明..铝粉粒度和铝氧比对含铝炸药在密闭空间内爆炸特性的影响[J].含能材料,2017,25(6):472-478,7.基金项目
国家国防科技工业局预先研究项目(00402010301) （00402010301）
