Wave Propagation in Helical Multi-Wire Cables

Abstract : Elastic guided waves are of great interest for the inspection of elongated structures. In practice, analytical or numerical modeling tools are required for a better understanding of the propagation of guided waves, which are multimodal and dispersive, and thereby for the optimization of inspection systems. However, cables are complex structures, helical, multi-wired and highly prestressed. This further complicates the interpretation of measurement. This paper is devoted to the modeling of wave propagation inside seven-wire strands, typically encountered in civil-engineering cables. It gives an overview of recent works, mainly conducted at Ifsttar, in order to account for the helical geometry, interwire coupling and prestress in numerical models. Then, the energy transfer from the central wire to the peripheral ones is investigated by considering an excitation localized into the central wire. The numerical results allow to understand how the energy transfer can decrease with frequency as well as to discover a new compressional mode, of local type, which could be of interest for the non-destructive evaluation or the structural health monitoring of cables.
Type de document :
Communication dans un congrès
Le Cam, Vincent and Mevel, Laurent and Schoefs, Franck. EWSHM - 7th European Workshop on Structural Health Monitoring, Jul 2014, Nantes, France. 2014
Liste complète des métadonnées

Littérature citée [13 références]  Voir  Masquer  Télécharger

https://hal.inria.fr/hal-01022063
Contributeur : Anne Jaigu <>
Soumis le : jeudi 10 juillet 2014 - 10:00:35
Dernière modification le : jeudi 10 juillet 2014 - 10:36:44
Document(s) archivé(s) le : vendredi 10 octobre 2014 - 11:05:10

Fichier

0187.pdf
Fichiers produits par l'(les) auteur(s)

Identifiants

  • HAL Id : hal-01022063, version 1

Collections

Citation

Fabien Treyssède, Laurent Laguerre. Wave Propagation in Helical Multi-Wire Cables. Le Cam, Vincent and Mevel, Laurent and Schoefs, Franck. EWSHM - 7th European Workshop on Structural Health Monitoring, Jul 2014, Nantes, France. 2014. 〈hal-01022063〉

Partager

Métriques

Consultations de la notice

250

Téléchargements de fichiers

245