Scattering of elastic waves by an inclusion with an interface crack |
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Authors: | O Coussy |
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Institution: | Service de Mécanique, Laboratoire Central des Ponts et Chaussees 58, boulevard Lefebvre, 75732 Paris Cedex 15, France |
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Abstract: | A method of perturbation is used to derive an integral representation of the displacement field for the scattering of a plane wave from an inclusion with an interface crack. In the long-wave approximation it is shown that the solution of only an associated static problem is required and formal expressions are derived for the scattered far field amplitudes and scattering cross section. In the case of a cylindrical inclusion the solution of the associated static problem is then used to find in a closed form the corresponding expressions for plane incident P- and S-waves. |
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