Calculation of surface wave motions due to a subsurface point force: an application of elastodynamic reciprocity |
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Authors: | Achenbach |
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Affiliation: | Center for Quality Engineering and Failure Prevention, Northwestern University, Evanston, Illinois 60208, USA. achenbach@nwu.edu |
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Abstract: | The elastodynamic reciprocity theorem for two time-harmonic elastodynamic states of the same body is used to determine the surface wave motions generated by a subsurface point load of arbitrary direction in an isotropic, homogeneous, elastic half-space. The actual surface wave motions due to the point load expressed in a suitably general form represent one of the states, while the other one is an appropriately selected auxiliary solution consisting of incoming and outgoing surface waves. A direct application of the reciprocity theorem yields the desired information on the generated surface wave motion. |
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