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A Two-Temperature Model Based on Fin-Approximation for Transient Longitudinal Heat Transfer in Unidirectional Composite

Gilles Dusserre * 
* Corresponding author
Abstract : The reliability of a two-temperature model is assessed in the case of longitudinal heat transfer in unidirectional composites. One interest is that it makes it possible to apply separate boundary conditions or source terms on the fibre and the matrix (emissivity for example), without necessitating an explicit description of the fibre and matrix domains. For the sake of simplicity, the model under study is based on a fin-approximation in both fibre and matrix, which implies a high interfacial thermal resistance. The range of validity of this assumption is investigated by comparing the model to an axisymmetric one-temperature model, using non-dimension variables and Dirichlet boundary conditions. It turns out that this range of validity is strongly dependent on the parameters.
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Submitted on : Wednesday, July 27, 2022 - 8:53:14 AM
Last modification on : Wednesday, August 3, 2022 - 3:07:04 AM

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Gilles Dusserre. A Two-Temperature Model Based on Fin-Approximation for Transient Longitudinal Heat Transfer in Unidirectional Composite. ESAFORM 2022 - 25th International Conference on Material Forming, Apr 2022, Braga, Portugal. pp.1882-1889, ⟨10.4028/p-2m7u9s⟩. ⟨hal-03737494⟩

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