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Journal article
Acoustic scattering from a fluid-elastic solid interface using the small slope approximation
The Journal of the Acoustical Society of America., Vol.96(3), pp.1796-1804
09/1994
Handle:
https://hdl.handle.net/2376/6001
Abstract
In this paper the small slope approximation is applied to acoustic scattering from a randomly rough fluid–elastic?solid interface. Expressions for the zeroth?, first?, and second?order bistatic scattering cross sections are derived. Numerical results are obtained for the zeroth?order small slope approximation for Gaussian and modified power law surface roughness spectra and are compared with those of first?order perturbation theory and the Kirchhoff approximation. The environmental parameters used correspond to those of water–granite, water–basalt, or water–sediment interfaces for lossless media. The small slope results show the complex structure associated with elastic wave scattering, including critical angle and Rayleigh angle structure. For the modified power law, the small slope results agree with those of Monte Carlo simulations performed by Berman [J. Acoust. Soc. Am. 89, 623–636 (1991)]. The study includes a comparison of scattering strengths both with and without the shear wave component. The importance of the shear wave component for a sufficiently rigid solid is illustrated.
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Details
- Title
- Acoustic scattering from a fluid-elastic solid interface using the small slope approximation
- Creators
- Taiqian Yang (Author)Shira L. Broschat (Author)
- Publication Details
- The Journal of the Acoustical Society of America., Vol.96(3), pp.1796-1804
- Academic Unit
- Electrical Engineering and Computer Science, School of
- Identifiers
- 99900502726601842
- Copyright
- In copyright ; openAccess ; http://rightsstatements.org/vocab/InC/1.0/ ; http://purl.org/eprint/accessRights/OpenAccess
- Language
- English
- Resource Type
- Journal article