Propagation of elastic wave in solid layer-liquid system
The paper presents the solution of the problem of a flat wave propagating without attenuation along a solid layer placed between a semispace filled with liquid and the vacuum. The wave equation of scalar and vector potentials of displacement has been solved for this case. A characteristic equation...
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| Format: | Article |
| Language: | English |
| Published: |
Institute of Fundamental Technological Research Polish Academy of Sciences
2016-03-01
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| Series: | Archives of Acoustics |
| Online Access: | https://acoustics.ippt.pan.pl/index.php/aa/article/view/3356 |
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| Summary: | The paper presents the solution of the problem of a flat wave propagating without attenuation along a solid layer placed between a semispace filled with liquid and the vacuum.
The wave equation of scalar and vector potentials of displacement has been solved for this case. A characteristic equation accounting for boundary conditions has been derived. This equation has been solved numerically and it has been shown that in these conditions the wave can propagate at a velocity slightly smaller than the wave velocity in the liquid.
The distributions of stress, acoustic pressure, and displacement of the propagating wave have been determined numerically for a layer of a thickness a = 0.075 cm and a = 0.010 cm, contacting with water on one side, and for a frequency of 3 × 10^6 Hz. The type of wave is close to a surface wave. |
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| ISSN: | 0137-5075 2300-262X |