Elastic guided waves in a layered plate with rectangular cross section

Guided waves in a layered elastic plate of rectangular cross section (finite width and thickness) has been studied in this paper. A semianalytical finite element method in which the deformation of the cross section is modeled by two-dimensional finite elements and analytical representation of propag...

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Bibliographic Details
Published inThe Journal of the Acoustical Society of America Vol. 112; no. 5 Pt 1; p. 1766
Main Authors Mukdadi, O M, Desai, Y M, Datta, S K, Shah, A H, Niklasson, A J
Format Journal Article
LanguageEnglish
Published United States 01.11.2002
Subjects
Elasticity
Models, Theoretical
Time Factors
Ultrasonics
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Summary:Guided waves in a layered elastic plate of rectangular cross section (finite width and thickness) has been studied in this paper. A semianalytical finite element method in which the deformation of the cross section is modeled by two-dimensional finite elements and analytical representation of propagating waves along the length of the plate has been used. The method is applicable to arbitrary number of layers and general anisotropic material properties of each layer, and is similar to the stiffness method used earlier to study guided waves in a laminated composite plate of infinite width. Numerical results showing the effect of varying the width of the plate on the dispersion of guided waves are presented and are compared with those for an infinite plate. In addition, effect of thin anisotropic coating or interface layers on the guided waves is investigated.
ISSN:0001-4966
DOI:10.1121/1.1509426