Experimental research on the damage features of vehicle under explosion

Abstract:

Vehicle explosion is becoming more and more common in explosion-related incidents. In order to combat domestic and foreign terrorists, and to support the criminal investigation and prevention about vehicle explosions, experimental research on the damage features of car under blast loading has been performed in this paper. In our experiments, explosives were detonated in the center of the bottom of the car, backup box center and under the driver’s seat respectively. The dynamic process of experiments was recorded by two high-speed photographic channels. Free field overpressure distributions in different directions were analyzed by using the shock wave overpressure test system, and the overpressure on the car body was obtained as well. A large number of automobile damage images and debris distribution data were achieved by camera. The effects of different explosion positions on blast damage features as well as the overpressure distribution of vehicles were obtained in the experiments, which are of significance to the scene restoration and detection of car explosion cases.