One component surface waves in materials with symmetry

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A one-component surface wave has a displacement polarization vector in a single direction. Alternatively, it can be thought of as originating from a single evanescent bulk wave, and therefore cannot exist in isotropic solids. It has recently been established that the existence of one-component surface waves is compatible with material symmetry and that they can occur even in transversely isotropic materials. This paper deals primarily with the existence of one-component surface waves in materials with a plane of symmetry normal to the direction of propagation, with particular attention given to transversely isotropic materials in this class. A unique feature of these waves is that the traction vector which vanishes at the free surface is zero at all depths, implying that one-component surface waves are also pure modes of slabs. All of the "theoretical materials" which support the wave have the unusual property that at least one Poisson's ratio must be negative.

Original languageEnglish (US)
Title of host publication1992 Ultrasonics Symposium Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages671-679
Number of pages9
ISBN (Electronic)0780305620
DOIs
StatePublished - 1992
Event1992 Ultrasonics Symposium - Tucson, United States
Duration: Oct 20 1992Oct 23 1992

Publication series

NameProceedings - IEEE Ultrasonics Symposium
Volume1992-October
ISSN (Print)1051-0117

Conference

Conference1992 Ultrasonics Symposium
CountryUnited States
CityTucson
Period10/20/9210/23/92

All Science Journal Classification (ASJC) codes

  • Acoustics and Ultrasonics

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