Measurement of Energy Reflection Coefficient Using Stress Waves

N. Nakayama , T. Sano , H. Takeishi

To make clear the reflection characteristics at fillet parts, the energy reflection coefficient from the fillets is measured. The fillet is composed of the same material as the structure. A semiconductor strain gauge is used to detect single stress pulses. Different from the conventional method where the energy reflection coefficient is the summation of the transfer function obtained by the Discrete Fourier Transform, the coefficient is calculated using strain energy measured by changing the duration of a single stress pulse and the curvature of the fillet. The effectiveness of the new method is confirmed by comparing the results obtained by conventional and new methods.

Domaines: Articles anciens

N. Nakayama, T. Sano, H. Takeishi. Measurement of Energy Reflection Coefficient Using Stress Waves. Journal de Physique IV Proceedings, 1997, 07 (C3), pp.C3-97-C3-102. ⟨10.1051/jp4:1997319⟩. ⟨jpa-00255476⟩