损伤炸药反应速率及起爆的数值模拟

Numerical Simulation on the Reaction Rate Equation and Shock Initiation of Damaged Explosives

摘要: 在PBX炸药冲击损伤和冲击起爆实验的基础上,采用拉格朗日分析方法对损伤炸药的化学反应速率方程进行整体标定,并对损伤炸药的冲击起爆过程进行了数值模拟.结果表明,损伤炸药冲击波感度提高,得到了损伤炸药化学反应速率方程相关参数的变化规律.

Abstract: Reaction rate equation is the key in the simulation of the process of damaged explosives' shock initiation.This equation is calibrated by Lagrange analysis on the basis of the results of impact damage and shock initiation experiments.Their results showed that the sensitivity increased in damaged explosives.Relations between the degree of damage and reaction rate equation were brought out.