Thermal characterization of anisotropic materials by integral transforms taking into account the thermal coupling with the sample-holder

Abstract : In this paper, a method for thermal characterization of anisotropic materials taking into account the coupling between the sample and its holder is presented. The originality of this work is to use temperature measurements made by infrared camera on the edges of the sample and introduce them as boundary conditions to get rid of the presence of the support. Using the principle of superposition and adapted integral transforms, it is then possible by an iterative method to obtain simultaneously the material properties in its different anisotropy directions by a least squares method applied to the spatial harmonics of the temperature field. This method is validated and compared with a classical Fourier-Cosine transform through a simulation before being applied to experimental measurements.
Keywords : Flash method
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Article dans une revue
International Journal of Thermal Sciences, Elsevier, 2014, 79, pp.67 - 75. 〈10.1016/j.ijthermalsci.2013.12.012〉
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https://hal.univ-lorraine.fr/hal-01418371
Contributeur : Lemta Ul <>
Soumis le : vendredi 16 décembre 2016 - 16:26:49
Dernière modification le : jeudi 11 janvier 2018 - 06:27:33

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Christophe Rodiet, Benjamin Remy, Alain Degiovanni. Thermal characterization of anisotropic materials by integral transforms taking into account the thermal coupling with the sample-holder. International Journal of Thermal Sciences, Elsevier, 2014, 79, pp.67 - 75. 〈10.1016/j.ijthermalsci.2013.12.012〉. 〈hal-01418371〉

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