Monitoring of a Full-Scale Wing Fatigue Test

Abstract : A wing of a decommissioned aircraft of the Royal Netherlands Air Force (RNLAF) was fatigue tested to more than two times the design life. Part of the test was the evaluation of load monitoring and Structural Health Monitoring (SHM) techniques. For load monitoring the data of conventional resistance strain gauges was compared with the response of optical Fibre Bragg Gratings (FBG). For SHM the Acoustic Emission (AE) and Comparative Vacuum Monitoring (CVM) techniques were employed to monitor fatigue crack initiation and growth. With the optical fibres a linear correlation between the FBGÕs and the conventional strain gauges was obtained using a specific strain transfer factor. The SHM techniques, on the other hand, were less successful. For the CVM technique no cracks occurred at the locations under periodic monitoring (but also no false calls occurred during the complete test). Further, the AE system under continuous monitoring registered a lot of AE activity from different sources (also after drastic filtering of the AE data) but the AE data could not be reliably related to the initiation and growth of fatigue cracks in the areas monitored. Most of the AE activity was probably caused by mechanically induced noise such as frictional noise from the fastener locations and other surface rubbing areas.
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 [6 références]  Voir  Masquer  Télécharger

https://hal.inria.fr/hal-01020303
Contributeur : Anne Jaigu <>
Soumis le : mardi 8 juillet 2014 - 09:41:27
Dernière modification le : mardi 8 juillet 2014 - 10:31:31
Document(s) archivé(s) le : mercredi 8 octobre 2014 - 11:20:50

Fichier

0060.pdf
Fichiers produits par l'(les) auteur(s)

Identifiants

  • HAL Id : hal-01020303, version 1

Collections

Citation

Jaap Heida, Jason Hwang. Monitoring of a Full-Scale Wing Fatigue Test. Le Cam, Vincent and Mevel, Laurent and Schoefs, Franck. EWSHM - 7th European Workshop on Structural Health Monitoring, Jul 2014, Nantes, France. 2014. 〈hal-01020303〉

Partager

Métriques

Consultations de la notice

276

Téléchargements de fichiers

273