Seismic Waves and Rays in Elastic Media [Elektronisk resurs] / by M. A. Slawinski.
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Slawinski, M. A. (författare)
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M.A. Slawinski (redaktör/utgivare)
- Publicerad: Kidlington : Pergamon, 2003
- Engelska online resource (xiii, 401 s.)
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Serie: Handbook of Geophysical Exploration: Seismic Exploration, 2452-154X ; 34
- Relaterad länk:
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http://www.sciencedi... (Table of contents)
Innehållsförteckning
Sammanfattning
Ämnesord
Stäng
- I. ELASTIC CONTINUA -- Deformations -- Force and balance principles -- Stress-strain equations -- Strain energy -- Material symmetry -- II: WAVES AND RAYS -- Equations of motion: isotropic homogeneous continua -- Equations of motion: anisotropic inhomogeneous continua -- Hamilton's ray equations -- Lagrange's ray equations -- Christoffel's equations -- Reflection and transmission -- III. VARIATIONAL FORMULATION OF RAYS -- Euler's equations -- Fermat's principle -- Ray parameters -- IV. APPENDICES -- Euler's homogeneous-function theorem -- Legendre's transformation -- List o f symols.
- This book seeks to explore seismic phenomena in elastic media and emphasizes the interdependence of mathematical formulation and physical meaning. The purpose of this title - which is intended for senior undergraduate and graduate students as well as scientists interested in quantitative seismology - is to use aspects of continuum mechanics, wave theory and ray theory to describe phenomena resulting from the propagation of waves. The book is divided into three parts: Elastic continua, Waves and rays, and Variational formulation of rays. In Part I, continuum mechanics are used to describe the material through which seismic waves propagate, and to formulate a system of equations to study the behaviour of such material. In Part II, these equations are used to identify the types of body waves propagating in elastic continua as well as to express their velocities and displacements in terms of the properties of these continua. To solve the equations of motion in anisotropic inhomogeneous continua, the high-frequency approximation is used and establishes the concept of a ray. In Part III, it is shown that in elastic continua a ray is tantamount to a trajectory along which a seismic signal propagates in accordance with the variational principle of stationary travel time.
Ämnesord
- Seismic waves (LCSH)
- Continuum mechanics (LCSH)
- Seismology -- Mathematics (LCSH)
- SCIENCE / Physics / Geophysics
Klassifikation
- 551.22 (DDC)
- Ubeb (kssb/8 (machine generated))
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Hjälp
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