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

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