Wave fields in real media : wave propagation in anisotropic, anelastic, porous and electromagnetic media
著者
書誌事項
Wave fields in real media : wave propagation in anisotropic, anelastic, porous and electromagnetic media
(Handbook of geophysical exploration, Seismic exploration ; v. 38)
Elsevier, 2007
2nd ed., rev. and extended
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注記
Includes bibliographical references (p. 457-490) and indexes
内容説明・目次
内容説明
Wave Fields in Real Media examines the differences between an ideal and a real description of wave propagation, where ideal means an elastic (lossless), isotropic and single-phase medium, and real means an anelastic, anisotropic and multi-phase medium. The analysis starts by introducing the relevant stress-strain relation. This relation and the equations of momentum conservation are combined to give the equation of motion. The differential formulation is written in terms of memory variables, and Biot's theory is used to describe wave propagation in porous media. For each rheology, a plane-wave analysis is performed in order to understand the physics of wave propagation. The book contains a review of the main direct numerical methods for solving the equation of motion in the time and space domains. The emphasis is on geophysical applications for seismic exploration, but researchers in the fields of earthquake seismology, rock acoustics, and material science - including many branches of acoustics of fluids and solids - may also find this text useful.
目次
1. Anisotropic elastic media2. Viscoelasticity and wave propagation3. Isotropic anelastic media4. Anisotropic anelastic media5. The reciprocity principle6. Reflection and transmission of plane waves7. Biot's theory for porous media8. Numerical methods
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