A numerical solution of the dispersion equation of the guided wave propagation in N-layered media

Cardona, Juan and Tabuenca Perchin, Pedro and Samartín, Avelino (2009). A numerical solution of the dispersion equation of the guided wave propagation in N-layered media. In: "Tenth International Conference on Integral Methods in Science and Engineering IMSE2008", 07/07/2008-10/07/2008, Santander (España). ISBN 978-0-8176-4896-1.

Description

Title: A numerical solution of the dispersion equation of the guided wave propagation in N-layered media
Author/s:
  • Cardona, Juan
  • Tabuenca Perchin, Pedro
  • Samartín, Avelino
Item Type: Presentation at Congress or Conference (Unspecified)
Event Title: Tenth International Conference on Integral Methods in Science and Engineering IMSE2008
Event Dates: 07/07/2008-10/07/2008
Event Location: Santander (España)
Title of Book: Integral Methods in Science and Engineering Computational Aspects
Date: 2009
ISBN: 978-0-8176-4896-1
Volume: 2
Subjects:
Freetext Keywords: Ultrasonic waves, Guided waves, Multilayer media, composite materials, dispersion curves, numerical techniques.
Faculty: E.T.S.I. Caminos, Canales y Puertos (UPM)
Department: Mecánica de Medios Continuos y Teoría de Estructuras
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

The theory of guided wave propagation in N-layered media is presented. The derivation of the dispersion equation is obtained from the application of appropriate boundary and continuity conditions to the solution of the general wave propagation. The resulting dispersion equation is given in the form of a determinant of a 4Nx4N coefficient matrix. A numerical procedure is proposed to represent and solve the implicit equation resulting. The validity and efficiency of the proposed numerical model is discussed. Dispersion curves characterizing the N-layered material are obtained and compared to published results. In order to illustrate the use of the model to different practical applications, such as coating problems of plasma spray on a turbine blade, aircraft multiple layers, ice detection, etc. a sensitivity analysis of the dispersion curves respect to depth imperfections is given.

More information

Item ID: 3816
DC Identifier: http://oa.upm.es/3816/
OAI Identifier: oai:oa.upm.es:3816
Official URL: http://www.springerlink.com/content/h0xx244nh0062067/
Deposited by: Memoria Investigacion
Deposited on: 21 Jul 2010 11:26
Last Modified: 10 Oct 2014 17:57
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