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Heat source estimation in anisotropic materials

Valès, Benjamin and Munoz cuartas, Victor alfonso and Welemane, Hélène and Pastor, Marie-Laetitia and Trajin, Baptiste and Perrin, Marianne and Cantarel, Arthur and Karama, Moussa Heat source estimation in anisotropic materials. (2016) Composite Structures, 136. 287-296. ISSN 0263-8223

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Official URL: http://dx.doi.org/10.1016/j.compstruct.2015.09.050

Abstract

The present paper is devoted to the determination of heat source dissipation from infrared thermographic measurements. Such procedure is mainly based on the heat diffusion equation provided by thermodynamics principles. Especially, this requires time and spatial derivation of temperature fields and the knowledge of the material thermal conductivity. This work intends to extend such classical procedure for isotropic materials to the anisotropic context. At first, we propose a comparative study of several filtering methods required for the data processing of noisy and discrete thermal acquisitions. In a second part, a transversely isotropic effective thermal conductivity tensor is estimated by means of a homogenization-based method. From these both results, a heat source application is presented in order to analyze damage phenomena in transversely isotropic CFRP submitted to tensile tests.

Item Type:Article
Additional Information:Thanks to Elsevier editor. The definitive version is available at : http://www.journals.elsevier.com/composite-structures/
HAL Id:hal-01269665
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Ecole nationale supérieure des Mines d'Albi-Carmaux - IMT Mines Albi (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - INPT (FRANCE)
Université de Toulouse > Institut National des Sciences Appliquées de Toulouse - INSA (FRANCE)
Université de Toulouse > Institut Supérieur de l'Aéronautique et de l'Espace - ISAE-SUPAERO (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UPS (FRANCE)
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Deposited By: Helene Welemane
Deposited On:28 Jan 2016 09:41

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