Experimental and numerical study of influence of incidence angle of shock wave created by explosive charge on the steel plate

This paper presents experimental and numerical studies on influence of an incidence angle of the shock wave on a steel plate. The problem of interaction between the wave front and a barrier is important from the point of view of protection the crew of armored vehicles. One way of remedying the harmful effects of impacts of the shock wave is the reflection wave of the barrier set at an angle to the face of the wave. The article presents the numerical and experimental approach to the subject. The numerical part presents four models in which the plate was set at angles 0 ◦ , 15 ◦ , 30 ◦ , 45 ◦ . In each case, the plate was loaded by a wave formed after the explosion 2 kg of TNT. In the experimental part the results are presented from an experiment in which the wave was formed from 2 kg TNT detonation at a distance of 0.4 m in parallel to the steel plate. ods are burdened with a considerable error in the case of an impact into a susceptible barrier oriented at a certain an- gle or with a very complex shape. The purpose of the paper is to present the results of numerical research performed by the author in light of other studies on the effects of a place- ment angle of the plate on the dynamic response of the plate. Methods for estimating the shock wave are widely presented in world literature. Therefore, in this article, the author omits a description of the above mentioned phenomenon. An exten- sive theoretical description of the phenomenon of the pressure impulse interaction onto a barrier is caused by an intention to clarify the mechanisms acting during a shock wave im- pact on all sorts of barriers. The article discusses wider the phenomena of the impulse pressure reflection.