Abstract
The complex compressional and shear frequency‐dependent elastic constants of nonporous solids and porous rocks are measured in the frequency range 5 kHz to 1 MHz. The measurements are performed in a continuous wave acoustic transmission bridge using cylindrical samples. Use of waveguided samples prevents problems of diffraction and wavefront spreading, which are difficult to correct over broad frequency ranges. The theory of waveguided elastic wave propagation in media with complex elastic constants (generalization of the Pochammer‐Cree solution) is presented. This theory is utilized in the interpretation of the experimental results from nonporous solids with real and complex frequency‐independent elastic constants, solids with complex frequency‐dependent elastic constants, and rocks with effective complex frequency‐dependent elastic constants. For solids with frequency‐independent complex elastic constants (constant Q) the results reveal the appearance of specific dissipation peaks associated with wavegu...
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