Synopses & Reviews
The contributions to this volume have as their theme surface acoustic waves, with a special emphasis on nonlinear and other nonclassical effects. These are of great importance for both pure science and practical applications such as signal processing, nondestructive evaluation and seismology. In recent years there has been considerable progress in the mathematical treatment of such effects which modify the predictions of linear elastic and mixed electroelastic and magnetoelastic theory for the propagation of surface waves. The volume presents current developments from a cross-disciplinary and mathematically rigorous standpoint, a format and presentation which should be useful to graduate students, researchers and engineers in many disciplines of theoretical and applied mechanics, materials science, applied mathematics, condensed matter physics, seismology and electroacoustics. The topics developed in detail in this volume are propagation on anisotropic substrates, rough surfaces, electromagnetic bodies, composite materials and superlattices, thermoelastic and viscoelastic substrates, and nonlinear propagation and its applications (e.g. convolvers). Special attention is paid to theoretical predictions, asymptotic analyses and computations and the identification of problems for future research.
Synopsis
The topic of surface waves lies at the interface between a number of disci- plines - physics, theoretical and applied mechanics, electroacoustics, ap- plied mathematics, surface science and seismology. This volume, based on papers delivered at European Mechanics Colloquium 226, reflects this diversity in approach and background, while showing strong links between phenomena arising from different fields. The emphasis is on recent de- velopments such as nonlinear and other nonclassical effects, which have great importance for both pure science and for applications such as signal processing, nondestructive evaluation and seismic studies. In recent years there has been considerable progress in the mathe- matical treatment of nonlinear effects, of viscoelastic and of more novel constitutive effects which modify the predictions of linear elastic and piezo- electric theory for surface acoustic wave (SAW) propagation. A number of these themes serve to group the contents of this volume. Part I contains recent advances in the rigorous mathematical treatment of nonlinearity, together with a paper giving experimental results showing the need for further theoretical development. Part II deals with anisotropic elasticity, showing that even the linear theory presents many possible behaviours, which are still not fully categorized.
Table of Contents
Contents: Nonlinear Surface Acoustic Waves and Applications.- Surface Waves on Anisotropic Substrates.- Surface Waves on Rough Surfaces.- Surface Waves on Electromagnetic Bodies.- Surface Waves on Composites.- Waves on Curved and Fluid-Loaded Surfaces, in Viscoelasticity and in Thermoelasticity.- Index of Contributors.