Application of holographic interferometry to a study of wave propagation in rock |
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| Authors: | D. C. Holloway A. M. Patacca W. L. Fourney |
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| Affiliation: | 1. Department of Mechanical Engineering, University of Maryland, 20742, College Park, MD
2. Westinghouse Defense & Electronics, Systems Ctr., 21203, Baltimore, MD
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| Abstract: | Holographic interferometry was utilized to determine the three orthogonal components of displacement in elastic surface waves. A pulsed ruby laser was used as the light source and techniques to improve its coherence properties are described. Procedures for the formation and reconstruction of the hologram, fringe interpretation, and data reduction and presentation are detailed. The elastic-wave velocities and material constants for pink westerly granite were obtained. Solutions for an explosively generated Rayleigh wave in a half space and its reflection from a free edge are presented. |
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