抄録
Interaction phenomena of compressible flow and solid object have been attracted interest from a point of view of numerical analysis and experimental investigation. In addition, in the medical field, the development of the technology of the extracorporeal shock wave lithotripsy which employs a high temperature and a high pressure condition caused by a shock wave is remarkable. To prevent the glass of house from being damaged by a sonic boom, to prevent the structure from being destructed by the explosion, and etc., the interaction problem between shock wave and the solid object has been studied. In this study the flow field, in which a shock wave issuing from a diaphragmless shock tube impacts on an elastic block made by acrylic or polycarbonate, is visualized experimentally using Schlieren method. The shock Mach number is about 1.37. As a result, a stress wave is induced by a collision of shock wave and it is found that the characteristics of the stress wave depend on the material and the strength of shock wave.
