Impact of explosive charge mass on reflected shock wave of high explosion

Abstract

Overpressure is an important metric of the destructive effect of the shock wave produced by high explosion. Investigating the overpressure of shock wave on the surface is an essential way for evaluating the power of explosive device. This study has important implications for quantitative analyses for establishing the relationship between parameters of reflected shock wave by using the numerical simulation software AUTODYN with different TNT explosive charge mass. The research indicates that with the increase of explosive charge mass, the initial value of peak overpressure of high explosive increases and the attenuation rate accelerates, it also provides the condition that the similarity law can be established in the relationship between peak overpressure and scale distance.