Special Section on Optical Computational Imaging

Comparative study of microlaser excitation thermography and microultrasonic excitation thermography on submillimeter porosity in carbon fiber reinforced polymer composites

[+] Author Affiliations
Hai Zhang, Clemente Ibarra-Castanedo, Xavier Maldague

Laval University, Department of Electrical and Computer Engineering, Computer Vision and Systems Laboratory, 1065 Avenue de la Médecine, Quebec G1V 0A6, Canada

Henrique Fernandes

Laval University, Department of Electrical and Computer Engineering, Computer Vision and Systems Laboratory, 1065 Avenue de la Médecine, Quebec G1V 0A6, Canada

Federal University of Uberlandia, Department of Mechanical Engineering, 2121 Avenida Joao Naves de Avila, Uberlandia 38400-902, Brazil

Ulf Hassler

Fraunhofer Development Center X-ray Technologies (EZRT), Department of Application Specific Methods and Systems, Fraunhofer IIS, Flugplatzstrasse 75, 90768 Fuerth, Germany

Marc Genest

National Research Council Canada, Aerospace Portfolio, Structures, Materials and Manufacturing, 1200 Montreal Road, Ottawa K1A 0R6, Canada

François Robitaille

University of Ottawa, Department of Mechanical Engineering, 161 Louis Pasteur, Ottawa K1N 6N5, Canada

Simon Joncas

École de Technologie Supérieure, Department of Automated Manufacturing Engineering, 1100 rue Notre-Dame Ouest, Montreal H3C 1K3, Canada

Opt. Eng. 56(4), 041304 (Sep 30, 2016). doi:10.1117/1.OE.56.4.041304
History: Received May 3, 2016; Accepted August 9, 2016
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Abstract.  Stitching is used to reduce incomplete infusion of T-joint core (dry-core) and reinforce T-joint structure. However, it may cause new types of flaws, especially submillimeter flaws. Thermographic approaches including microvibrothermography, microlaser line thermography, and microlaser spot thermography on the basis of pulsed and lock-in techniques were proposed. These techniques are used to detect the submillimeter porosities in a stitched T-joint carbon fiber reinforced polymer composite specimen. X-ray microcomputed tomography was used to validate the thermographic results. Finally an experimental comparison of microlaser excitation thermography and microultrasonic excitation thermography was conducted.

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© 2016 Society of Photo-Optical Instrumentation Engineers

Citation

Hai Zhang ; Henrique Fernandes ; Ulf Hassler ; Clemente Ibarra-Castanedo ; Marc Genest, et al.
"Comparative study of microlaser excitation thermography and microultrasonic excitation thermography on submillimeter porosity in carbon fiber reinforced polymer composites", Opt. Eng. 56(4), 041304 (Sep 30, 2016). ; http://dx.doi.org/10.1117/1.OE.56.4.041304


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