Investigation of solid/solid interface waves with laser ultrasonics.
A new method for detection of the soild/soild interface wave with laser ultrasonics is introduced in this paper. Based on the interaction between the acoustic wave and the probe laser beam of an interferometer in a transparent solid, the Stoneley waves propagated along the quartz/steel interface are detected successfully. The dispersion properties of Leaky Rayleigh wave are studied when the boundary conditions are described by interface spring mode. The Leaky Rayleigh wave at Plexiglas/aluminum interface is also detected and the experimental results are in good agreement with the theoretical results. It shows that the interface wave should be a powerful technique for evaluation of the interface properties.
Han
Q B
QB
Institute of Acoustics, Tongji University, Shanghai 200092, China. Hqb0092@163.com <Hqb0092@163.com>
Qian
M L
ML
Wang
H
H