射弹
点火系统
材料科学
工作(物理)
化学反应
机械
计算机模拟
数值分析
反应机理
化学动力学
热力学
化学
物理
动力学
经典力学
数学
冶金
催化作用
数学分析
生物化学
作者
Guancheng Lu,Zhenyang Liu,Jianwen Xie,Yuanfeng Zheng,Chao Ge,Pengwan Chen,Haifu Wang
摘要
Reactive materials (RMs) are special type of impact-initiated energetic materials that have been widely studied with broad military application prospects. However, simulating the ignition and reaction of RMs using current numerical methods is difficult due to their complex mechanism related to high dynamic loads. In this work, based on a theoretical model consisting of impact ignition criteria and chemical reaction rate of polymer-based RMs, a numerical method with a unified equation of state was proposed and compiled as an executable program. Experiments consisting of typical polytetrafluoroethylene /Al RM projectiles impacting double-spaced plates were conducted and simulated using the user-compiled program, and the results verified the effectiveness of the numerical method. The simulation also qualitatively analyzed the second-collision induced reaction enhancement mechanism. In addition, the results revealed that the kinetic-chemical combined effect is a crucial factor that determined the damage enhancement effect on the rear plates.
科研通智能强力驱动
Strongly Powered by AbleSci AI