Pulsed micro-laser line thermography on submillimeter porosity in carbon fiber reinforced polymer composites : experimental and numerical analyses for the capability of detection

Authors: Zhang, HaiFernandes, HenriqueDjupkep Dizeu, Frank Billy; Hassler, Ulf; Fleuret, JulienGenest, MarcIbarra Castanedo, ClementeRobitaille, François; Joncas, Simon; Maldague, X.
Abstract: In this article, pulsed micro-laser line thermography (pulsed micro-LLT) was used to detect the submillimeter porosities in a 3D preformed carbon fiber reinforced polymer composite specimen. X-ray microcomputed tomography was used to verify the thermographic results. Then, finite element analysis was performed on the corresponding models on the basis of the experimental results. The same infrared image processing techniques were used for the experimental and simulation results for comparative purposes. Finally, a comparison of experimental and simulation postprocessing results was conducted. In addition, an analysis of probability of detection was performed to evaluate the detection capability of pulsed micro-LLT on submillimeter porosity.
Document Type: Article de recherche
Issue Date: 8 August 2016
Open Access Date: 16 January 2017
Document version: AM
Permalink: http://hdl.handle.net/20.500.11794/13110
This document was published in: Applied optics, Vol. 55 (34), D1-D10 (2016)
Optical Society of America
Alternative version: 10.1364/AO.55.0000D1
Collection:Articles publiés dans des revues avec comité de lecture

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