Shock initiation performance of NTO-based polymer bonded explosive  

作　　者：Peng-song Nie Shao-hua Jin Li-xiao-song Du Li-jie Li Kun Chen Yu Chen Rui Yu 

机构地区：[1]School of Materials Science and Engineering,Beijing Institute of Technology,Zhongguancun South Street 5,Beijing,100081,China [2]Xi'an Modern Control Technology Research Institute,Xi'an,710065,China

出　　处：《Defence Technology（防务技术）》2022年第9期1538-1545,共8页Defence Technology

基　　金：the Fundamental Research Funds for the Central University in China。

摘　　要：3-nitro-1,2,4-tri-azol-5-one(NTO) is a high energy insensitive explosive. To study the shock initiation process of NTO-based polymer bonded explosive JEOL-1(32%octahydro-1,3,5,7-tetranitro-1,3,5,7-tetrazocine(HMX), 32% NTO, 28% Al and 8% binder system), the cylinder test, the gap experiments and numerical simulation were carried out. Firstly, we got the detonation velocity(7746 m/s) and the parameters of Jones-Wilkins-Lee(JWL) equation of state(EOS) for detonation product by cylinder test and numerical simulation. Secondly, the Hugoniot curve of unreacted explosive for JEOL-1 was obtained calculating the data of pressure and time at different Lagrangian positions. Then the JWL EOS of unreacted explosive was obtained by utilizing the Hugoniot curve as the reference curve. Finally, we got the pressure growth history of JEOL-1 under shock wave stimulation and the parameters of the ignition and growth reaction rate equation were obtained by the pressure-time curves measured by the shockinitiation gap experiment and numerical simulation. The determined trinomial ignition and growth model(IG model) parameters can be applied to subsequently simulation analysis and design of insensitive ammunition with NTO-based polymer bonded explosive.

关 键 词：NTO Shock initiation Hugoniot data JWL Ignition and growth reactive model 

分 类 号：TQ560.1[化学工程—炸药化工]