Reference : Artificial defects in CFRP composite structure for Thermography and Shearography nond...
Scientific congresses and symposiums : Paper published in a book
Physical, chemical, mathematical & earth Sciences : Physics
http://hdl.handle.net/2268/213732
Artificial defects in CFRP composite structure for Thermography and Shearography nondestructive inspection
English
Blain, Pascal mailto [Université de Liège > > CSL (Centre Spatial de Liège) >]
Vandenrijt, Jean-François mailto [Université de Liège > > CSL (Centre Spatial de Liège) >]
Languy, Fabian mailto [Université de Liège > > CSL (Centre Spatial de Liège) >]
Kirkove, Murielle mailto [Université de Liège > > CSL (Centre Spatial de Liège) >]
Théroux, Louis-Daniel [> >]
Lewandowski, Jacques [> >]
Georges, Marc mailto [Université de Liège > > CSL (Centre Spatial de Liège) >]
Apr-2017
Proceedings of SPIE 10449, Fifth International Conference on Optical and Photonics Engineering
SPIE
No
No
International
Bellingham
USA
5th International Conference on Optical and Photonics Engineering
from 05-04-2017 to 07-04-2017
Optics and Photonics Society of Singapore
Singapore
Singapore
[en] shearography ; thermography ; nondestructive inspection ; non-destructive testing ; composite materials
[en] Locating defects in CFRP composite materials is a hot topic in nondestructive inspection (NDI). Beside classical NDI technique, such as ultrasound testing (UT), contactless techniques are actively studied. Generally manufacturers of CFRP structure incorporate artificial defects in the bulk, with different extents and depths, in order to study the performance of a specific NDI technique to detect the defect. One of the most common defects in CFRP is delamination between two layers. This is simulated by inserting teflon sheets which, like air, acts as ultrasound blocker in UT. When such reference part is used to assess NDI performance of thermography or shearography, we only observe respectively the thermal or mechanical response of teflon with respect to external loading used with these techniques. In this work, we assess other possibilities for artificial defects in CFRP matrix. For that a CFRP structure was developed and which incorporates teflon, flat-bottom holes and delamination obtained by the pull-out method. We experimentally studied the signals and we discuss the difference between the various artificial defects methods.
Centre Spatial de Liège - CSL
Service public de Wallonie : Direction générale opérationnelle de l'économie, de l'emploi et de la recherche - DG06
TECCOMA (contract N° 7281)
Researchers ; Students
http://hdl.handle.net/2268/213732
10.1117/12.2271701

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