non destructive testing; composite materials; shearography; thermography; laser ultrasound
Abstract :
[en] Thermography, shearography and laser ultrasonics are 3 contactless emerging techniques which allow nondestructive inspection of composite structures. Thermography and shearography are full-field techniques yielding measurement of respectively local temperature variations or deformations of a structure undergoing a stress (thermal, pressure, vibration). Laser ultrasonics allows remote ultrasound generation in the composite by thermoelastic effect followed by remote measurement of the surface displacements under the effect of the ultrasound echoes without coupling. This point-like technique requires scanning. The three techniques have been selected in our project since they allow inspection of complex shaped parts. We present compared results obtained on a variety of aeronautical industrial composite parts.
Disciplines :
Materials science & engineering
Author, co-author :
Georges, Marc ; Université de Liège - ULiège > CSL (Centre Spatial de Liège)
Language :
English
Title :
Comparison of 3 emerging optical NDI techniques on complex shaped composite structures based on carbon fiber
Publication date :
01 October 2013
Event name :
Aerodatings
Event organizer :
Interreg IV Project +Composites
Event place :
Yutz, France
Event date :
1 Octobre 2013
By request :
Yes
Audience :
International
Funders :
Service public de Wallonie : Direction générale opérationnelle de l'économie, de l'emploi et de la recherche - DG06
