Guided Waves in Layered Plate with Delaminations

Abstract : The integrity of safety-critical structural composites can be enhanced by the use of innovative ultrasonic nondestructive evaluation (NDE) techniques. Among the various existing techniques, guided wave methods provide a good compromise in terms of sensitivity to a variety of damage types or defects and extent of the area that can be monitored, given the ability of this waves to travel relatively long distances within the structure under investigation. In comparison with Lamb waves propagating in isotropic structures, wave propagation in composite structures presents additional complexity for effective damage identification. The material inhomogeneity, the anisotropy and the multi-layered construction lead to the significant dependence of wave modes on laminate layup configurations, direction of propagation, frequency, and interface conditions. In this paper a specific structure will be analyzed with different levels of complexities as far as the wave propagation characteristics are concerned. The investigated structure is a composite stiffened plate. The work is carried out using theoretical analysis, numerical models and experimental verifications. Numerical (Finite Element) models are used for more practical cases, for which the geometric and material complexities of actual structures present practical difficulties in direct analysis of wave propagation data using theoretical constructs only.
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 [11 références]  Voir  Masquer  Télécharger

https://hal.inria.fr/hal-01020322
Contributeur : Anne Jaigu <>
Soumis le : mardi 8 juillet 2014 - 09:52:27
Dernière modification le : mardi 8 juillet 2014 - 10:35:07
Document(s) archivé(s) le : mercredi 8 octobre 2014 - 11:25:53

Fichier

0454.pdf
Fichiers produits par l'(les) auteur(s)

Identifiants

  • HAL Id : hal-01020322, version 1

Collections

Citation

Fabrizio Ricci, Ajit K. Mal, Ernesto Monaco, Leandro Maio, Natalino Daniele Boffa, et al.. Guided Waves in Layered Plate with Delaminations. Le Cam, Vincent and Mevel, Laurent and Schoefs, Franck. EWSHM - 7th European Workshop on Structural Health Monitoring, Jul 2014, Nantes, France. 2014. 〈hal-01020322〉

Partager

Métriques

Consultations de la notice

424

Téléchargements de fichiers

663