Viscoelastic Waves in Layered Media





Preface

This book provides a self-contained mathematical exposition of the theory of

monochromatic wave propagation in layered viscoelastic media. It provides analytic

solutions and numerical results for fundamental wave-propagation problems in

arbitrary linear viscoelastic media not published previously in a book. As a text

book with numerical examples and problem sets, it provides the opportunity to teach

the theory of monochromatic wave propagation as usually taught for elastic media

in the broader context of wave propagation in any media with a linear response

without undue complications in the mathematics. Formulations of the expressions

for the waves and the constitutive relation for the media afford considerable generality

and simplification in the mathematics required to derive analytic solutions valid

for any viscoelastic solid including an elastic medium. The book is intended for the

beginning student of wave propagation with prerequisites being knowledge of

differential equations and complex variables.



As a reference text, this book provides the theory of monochromatic wave

propagation in more than one dimension developed in the last three to four decades.

As such, it provides a compendium of recent advances that show that physical

characteristics of two- and three-dimensional anelastic body and surface waves are

not predictable from the theory for one-dimensional waves. It provides the basis for

the derivation of results beyond the scope of the present text book. The theory is of

interest in the broad field of solid mechanics and of special interest in seismology,

engineering, exploration geophysics, and acoustics for consideration of wave propagation

in layered media with arbitrary amounts of intrinsic absorption, ranging

from low-loss models of the deep Earth to moderate-loss models for soils and weathered rock.


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