Title :

Semi-analytical discontinuous Galerkin finite element method for the calculation of dispersion properties of guided waves in plates

Author(s) :

Hebaz, Salah-Eddine [Auteur]
Transduction, Propagation et Imagerie Acoustique - IEMN [TPIA - IEMN]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
Benmeddour, Farouk [Auteur]
Transduction, Propagation et Imagerie Acoustique - IEMN [TPIA - IEMN]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
INSA Institut National des Sciences Appliquées Hauts-de-France [INSA Hauts-De-France]
Moulin, Emmanuel [Auteur]
Transduction, Propagation et Imagerie Acoustique - IEMN [TPIA - IEMN]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
INSA Institut National des Sciences Appliquées Hauts-de-France [INSA Hauts-De-France]
Assaad, Jamal [Auteur]
Transduction, Propagation et Imagerie Acoustique - IEMN [TPIA - IEMN]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]

Journal title :

Journal of the Acoustical Society of America

Pages :

460-469

Publisher :

Acoustical Society of America

Publication date :

2018-01

ISSN :

0001-4966

HAL domain(s) :

Physique [physics]/Mécanique [physics]/Acoustique [physics.class-ph]
Physique [physics]/Mécanique [physics]/Matériaux et structures en mécanique [physics.class-ph]
Physique [physics]/Mécanique [physics]/Vibrations [physics.class-ph]
Physique [physics]/Physique mathématique [math-ph]
Sciences de l'ingénieur [physics]/Acoustique [physics.class-ph]

English abstract : [en]

The development of reliable guided waves inspection systems is conditioned by an accurate knowledge of their dispersive properties. The semi-analytical finite element method has been proven to be very practical for modeling ...
Show more >The development of reliable guided waves inspection systems is conditioned by an accurate knowledge of their dispersive properties. The semi-analytical finite element method has been proven to be very practical for modeling wave propagation in arbitrary cross-section waveguides. However, when it comes to computations on complex geometries to a given accuracy, it still has a major drawback: the high consumption of resources. Recently, discontinuous Galerkin finite element method (DG-FEM) has been found advantageous over the standard finite element method when applied as well in the frequency domain. In this work, a high-order method for the computation of Lamb mode characteristics in plates is proposed. The problem is discretised using a class of DG-FEM, namely, the interior penalty methods family. The analytical validation is performed through the homogeneous isotropic case with traction-free boundary conditions. Afterwards, functionally graded material plates are analysed and a numerical example is presented. It was found that the obtained results are in good agreement with those found in the literatureShow less >

Language :

Anglais

Popular science :

Non

Comment :

JIF=1.819

Collections :

• Institut d'Électronique, de Microélectronique et de Nanotechnologie (IEMN) - UMR 8520

Source :

Harvested from HAL