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Elastic Guided Waves in Composite Pipes

[+] Author Affiliations
Younho Cho

Pusan National University, Pusan, South Korea

Joseph L. Rose, Chong Myoung Lee, Gregory N. Bogan

Pennsylvania State University, State College, PA

Paper No. PVP2004-2813, pp. 47-52; 6 pages
doi:10.1115/PVP2004-2813
From:
  • ASME/JSME 2004 Pressure Vessels and Piping Conference
  • Recent Advances in Nondestructive Evaluation Techniques for Material Science and Industries
  • San Diego, California, USA, July 25–29, 2004
  • Conference Sponsors: Pressure Vessels and Piping Division
  • ISBN: 0-7918-4679-2
  • Copyright © 2004 by ASME

abstract

An efficient technique for the calculation of guided wave dispersion curves in composite pipes is presented. The technique uses a forward-calculating variational calculus approach rather than the guess and iterate process required when using the more traditional partial wave superposition technique. The formulation of each method is outlined and compared. The forward-calculating formulation is used to develop finite element software for dispersion curve calculation. Finally, the technique is used to calculate dispersion curves for several structures, including an isotropic bar, two multi-layer composite bars, and a composite pipe.

Copyright © 2004 by ASME

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