Propagation of Rayleigh, Scholte and Stoneley waves along random boundaries |
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| Authors: | M Ostoja-Starzewski |
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| Affiliation: | 1. CHORUS Research Institute, Phelma Minatec, 3 Parvis Louis Neel, 38000 Grenoble, France;2. Fisheries and Oceans Canada, Maurice Lamontagne Institute, 850 route de la Mer, P.O. Box 1000, Mont-Joli, Québec G5H 3Z4, Canada;1. School of Civil, Environmental & Mining Engineering, The University of Adelaide, SA 5005, Australia;2. School of Mechanical Engineering, The University of Adelaide, SA 5005, Australia;1. Institute of Rock Structure and Mechanics, Academy of Sciences of the Czech Republic, V Holesovickach 94/41, 18209, Prague 8, Czech Republic;2. Geology and Geophysics Department, Faculty of Sciences, King Saud University, Riyadh, Saudi Arabia |
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| Abstract: | The effect of boundary roughness on the propagation of Rayleigh, Scholte and Stoneley waves is analysed under the assumption of the wavelength being much larger than the roughness scale of the interface. The scattering of the fundamental interface waves is represented by systems of plane waves in both neighbouring half-spaces; the formulas for amplitudes of these waves are determined using the perturbation method. The phase velocity of the interface waves is analysed by an approximate technique and is found to increase with the growing boundary roughness for all three types of interface waves. |
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