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Conference Papers Year : 2013

Computation of leaky modes in three-dimensional open elastic waveguides

Abstract

Elastic guided waves are of interest for inspecting structures due to their ability to propagate over long distances. When the guiding structure is embedded into a solid matrix, waveguides are open and waves can be trapped or leaky. With numerical methods, one of the difficulty is that leaky modes attenuate along the axis (complex wavenumber) and exponentially grow along the transverse direction. The goal of this work is to propose a numerical approach for computing modes in open elastic waveguides combining the so-called semi-analytical finite element method (SAFE) and a perfectly matched layer (PML) technique.
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Dates and versions

hal-00948019 , version 1 (17-02-2014)

Identifiers

  • HAL Id : hal-00948019 , version 1

Cite

Khac-Long Nguyen, Fabien Treyssede, Anne-Sophie Bonnet-Ben Dhia, Christophe Hazard. Computation of leaky modes in three-dimensional open elastic waveguides. 11th International Conference on Mathematical and Numerical Aspects of Waves Propagation (WAVES 2013), Jun 2013, Tunisia. 2p. ⟨hal-00948019⟩
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