| FUNDAMENTAL AREAS OF PHENOMENOLOGY(INCLUDING APPLICATIONS) |
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Leaky Interface Wave Measurement at a Solid-Solid Interface with Laser Ultrasonics |
| WANG Hao1, HAN Qing-Bang2** QIAN Meng-Lu1 |
1Institute of Acoustics, Tongji University, Shanghai 200092
2Changzhou Key Laboratory of Sensor Networks and Environmental Sensing, Hohai University, Changzhou 213022
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| Cite this article: |
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WANG Hao, HAN Qing-Bang QIAN Meng-Lu 2012 Chin. Phys. Lett. 29 104304 |
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Abstract The experimental investigation on transparent solid/solid (aluminum and plexiglas) interface leaky waves generated by a pulse laser and detected with a photoelastic effect technique is reported. Three waves, i.e., longitudinal head wave, leaky Rayleigh wave and leaky interface wave, are detected successfully. The leaky waves propagating along the 'weak bonding' interface are also measured. It is found that with the continuing epoxy solidification, the wave amplitude gradually decreases and the two leaky waves are more difficult to distinguish. The velocities of the detected interface wave are in good agreement with the theoretical calculation and the attenuation characteristics of the two leaky waves are also in accordance with the theoretical prediction.
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Received: 23 May 2012
Published: 01 October 2012
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