| Autor: |
Allard, J. F., Henry, M., Glorieux, C., Petillon, S., Lauriks, W. |
| Předmět: |
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| Zdroj: |
Journal of Applied Physics; 1/15/2003, Vol. 93 Issue 2, p1298, 7p, 2 Diagrams, 2 Charts, 5 Graphs |
| Abstrakt: |
A description of the laser-induced wave excitation of surface modes at a fluid-porous medium interface using the Biot model is presented. For the case of a material much heavier than the fluid, the porous frame behaves like an elastic medium in vacuum with a small frequency-dependent structural damping due to the viscous losses. Predictions concerning the shape of the Rayleigh-like wave are given. Measurements show the effect of scattering for ceramics of different pore sizes on this wave. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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