摘要
为了更好地研究传爆序列中主装药在传爆药作用下的爆轰成长特性,采用高速扫描相机,捕捉主装药柱中爆轰波沿侧面轴线的传播轨迹,结合数值模拟计算分析了起爆传爆过程。研究表明,与奥克托今(HMX)基理想炸药相对比,传爆药的尺寸变化对TATB基非理想炸药爆轰波的发展过程影响更明显,特别是当传爆药柱尺寸减小至Φ10 mm×5 mm时,TATB基炸药爆轰波的成长距离更长,爆轰波发展至40 mm位置处才趋于稳定爆轰。与一维冲击起爆过程不同的是,小尺寸传爆药柱冲击起爆作用下,主装药柱中爆轰成长过程表现为二维效应,因此沿轴向和径向化学反应速率的明显差异对爆轰传递的可靠性起重要作用。
In order to further study the detonation growth characteristics of main explosive shocked by booster in detonation sequence,the high speed scanning camera was used to capture the propagation trajectory of the detonation wave in the main explosive along the lateral axis,and the detonation propagation process was analyzed by means of numerical simulation.The results show that compared with the HMX-based ideal explosive,the charge of booster plays a greater impact on the development of the detonation wave in TATB-based non-ideal explosive.The detonation wave growth distance becomes longer and the stable detonation occurs at the distance 40mm,when the booster size reduces toΦ10 mm×5 mm.Different from 1D shock ignition test,the initiation process in main charge shocked by the smaller diameter booster has the two-dimensional effects.Thus,the difference of detonation chemical reaction rate along axis and radial direction plays an important roles on the detonation transfer reliability.
作者
段英良
韩勇
冉剑龙
刘清杰
昝继超
贾路川
DUAN Ying-liang;HAN Yong;RAN Jian-long;LIU Qing-jie;ZAN Ji-chao;JIA Lu-chuan(Institute of Chemical Materials,CAEP,Mianyang 621999,China)
出处
《含能材料》
EI
CAS
CSCD
北大核心
2020年第11期1083-1088,I0004,共7页
Chinese Journal of Energetic Materials
基金
国家重点研发计划(2017YFC0804703),国家自然科学基金(11902298)。
关键词
传爆序列
爆轰波
冲击起爆
点火增长模型
detonation sequene
detonation wave
shock initiation
ignition-growth reactive model
作者简介
段英良(1987-),男,助理研究员,主要从事含能材料爆轰性能研究。e-mail:duanyingliang@caep.cn;通信联系人:韩勇(1976-),男,研究员,主要从事凝聚态爆轰物理研究。e-mail:y_han76@126.com。
