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 shock-initiation 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.

3-nitro-1,2,4-tri-azol-5-one (NTO) 是一种高能不敏感炸药。研究 NTO 基聚合物粘结炸药 JEOL-1 (32%octahydro-1,3,5,7-tetranitro-1,3,5,7-tetrazocine (HMX), 32% NTO, 28% Al 和 8% 粘结剂体系）、圆柱试验、间隙试验和数值模拟。首先，通过圆筒试验和数值模拟，得到了爆轰产物的爆速（7746 m/s）和Jones-Wilkins-Lee（JWL）状态方程（EOS）参数。其次，通过计算不同拉格朗日位置的压力和时间数据，得到了JEOL-1未反应炸药的Hugoniot曲线。然后以Hugoniot曲线为参考曲线，得到未反应炸药的JWL EOS。最后，我们得到了JEOL-1在冲击波刺激下的压力增长历史，并通过冲击-起爆间隙实验和数值模拟测量的压力-时间曲线得到了着火和增长反应速率方程的参数。确定的三项式点火和增长模型（IG模型）参数可用于后续模拟分析和设计基于NTO的聚合物键合炸药的不敏感弹药。