A melt-cast Duan-Zhang-Kim mesoscopic reaction rate model and experiment for shock initiation of melt-cast explosives  

作　　者：Shu-rui Li Zhuo-ping Duan Lian-sheng Zhang Zhuo-cheng Ou Feng-lei Huang 

机构地区：[1]State Key Laboratory of Explosion Science and Technology,Beijing Institute of Technology,Beijing,100081,China

出　　处：《Defence Technology（防务技术）》2021年第5期1753-1763,共11页Defence Technology

基　　金：the National Natural Science Foundation of China(Grant No.11772056);the NSAF Joint Fund(Grants No.U1630113)and the Innovative Group of Material and Structure Impact Dynamics(Grant No.11521062)。

摘　　要：A melt-cast Duan-Zhang-Kim(DZK)mesoscopic reaction rate model is developed for the shock initiation of melt-cast explosives based on the pore collapse hot-spot ignition mechanism.A series of shock initiation experiments was performed for the Comp B melt-cast explosive to estimate effects of the loading pressure and the particle size of granular explosive component,and the mesoscopic model is validated against the experimental data.Further numerical simulations indicate that the initial density and formula proportion greatly affect the hot-spot ignition of melt-cast explosives.

关 键 词：Melt-cast explosive Shock initiation Mesoscopic reaction rate model Hot-spot ignition Shock sensitivity 

分 类 号：TQ560.1[化学工程—炸药化工]