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Crack detection by stimulated infrared thermography

Published online by Cambridge University Press:  07 March 2014

Jean-Luc Bodnar
Jean-Luc Bodnar*
Affiliation:
GRESPI/ECATHERM, Université de Reims Champagne Ardenne, Moulin de la Housse, BP 1039, 51687 Reims, France
*
ae-mail: jean-luc.bodnar@univ-reims.fr
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Abstract

In this paper, the potential of stimulated infrared thermography is studied for the detection of cracks located in metallic materials. To start with, the feasibility of the method is shown with the use of numerical simulations. Stimulated infrared thermography allows detecting emerging cracks in samples whether reflective or not as well as non-emerging cracks. In addition, crack detection is due to the radiative effects and/or the thermal effects induced by the defects. Then, the experimental device implemented for the study is detailed. Finally, experiments confirm that stimulated infrared thermography enables to detect microscopic cracks, whether emerging or non-emerging, in metal samples.

Type
Research Article
Information
The European Physical Journal - Applied Physics , Volume 65 , Issue 3 , March 2014 , 31001
Copyright
© EDP Sciences, 2014

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