Skip to Main content Skip to Navigation
Conference papers

Computation of Dispersion Curves in Elastic Waveguides of Arbitrary Cross-section embedded in Infinite Solid Media

Khac-Long Nguyen 1 Fabien Treyssede 1 Anne-Sophie Bonnet-Ben Dhia 2 Christophe Hazard 2
2 POEMS - Propagation des Ondes : Étude Mathématique et Simulation
Inria Saclay - Ile de France, UMA - Unité de Mathématiques Appliquées, CNRS - Centre National de la Recherche Scientifique : UMR7231
Abstract : Elastic guided waves are of interest for inspecting structures due to their ability to propagate over long distances. However, guiding structures are often buried in a large domain, considered as unbounded. Waveguides are then open and waves can be trapped or leaky. Analytical tools have been developed to model open solid waveguides but these tools are limited for simple geometries (plates, cylinders). With numerical methods, a difficulty is due to the unbounded geometry. Another issue is due to the presence of leaky modes, which grow exponentially along the transverse directions. The goal of this work is to implement a numerical approach to calculate modes in three dimensional elastic open waveguides, which combines the semi-analytical finite element method and the perfectly matched layers (PML) technique. Both Cartesian and cylindrical PML are implemented.
Document type :
Conference papers
Complete list of metadata

Cited literature [22 references]  Display  Hide  Download

https://hal.archives-ouvertes.fr/hal-00948012
Contributor : Ifsttar Cadic <>
Submitted on : Monday, February 17, 2014 - 4:01:45 PM
Last modification on : Friday, January 22, 2021 - 11:54:03 AM
Long-term archiving on: : Sunday, April 9, 2017 - 12:55:23 PM

File

doc00017166.pdf
Files produced by the author(s)

Identifiers

  • HAL Id : hal-00948012, version 1

Collections

Citation

Khac-Long Nguyen, Fabien Treyssede, Anne-Sophie Bonnet-Ben Dhia, Christophe Hazard. Computation of Dispersion Curves in Elastic Waveguides of Arbitrary Cross-section embedded in Infinite Solid Media. 13th International Symposium on Nondestructive Characterization of Materials, May 2013, France. 8p. ⟨hal-00948012⟩

Share

Metrics

Record views

382

Files downloads

729