G0510505 A study on formation of stress wave by shock wave

Abstract

In this paper interaction process between shock wave and solid is discussed. Such phenomenon is known to be one of the reasons of serious problem, such as the destruction of glass and structures by shock generated from supersonic plane, explosion and so on. In recent years, although the mechanism of interaction has been studied by many researchers, the details of process have not been known enough yet. In this study, the interaction phenomenon between a shock wave emitted from a diaphragmless shock tube and a solid block having different shape made of polycarbonate is experimentally visualized using Schlieren method. Strength of the impact force generated by shock impingement is evaluated by numerical simulation of the flow field using TVD scheme. As a result, stress wave is formed by the shock collision and propagates in the block and it is found that the shape and the propagation speed of stress wave depend on the shape and the material properties of block.