Wave Propagation in Anisotropic Rocks
Technical rept. no. 4 (Final), 23 Feb 11972-1 Jun 1973
CALIFORNIA UNIV BERKELEY
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The report summarizes the results of a two-year analytical and experimental effort concerned with the investigation of body waves and surface waves in isotropic and anisotropic half-spaces. These were modeled by large blocks of limestone and Yule marble, respectively, that were subjected to pulses produced by the impact of steel spheres on loading bars attached normally to the surface of these blocks. The results were compared with stress histories measured by specially-designed and calibrated crystal transducers. The dynamic constants needed for the anisotropic analysis were obtained from wave velocity measurements in various directions on the Yule marble block and an optimization procedure subjected to certain physical constraints. Static and dynamic tests in tension and compression for various orientations of Yule marble samples, as well as cyclic loading, creep and some fracture tests have also been executed on samples of Yule marble.
- Geology, Geochemistry and Mineralogy