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Numerical simulation of humidity diffusion through the polyester/glass fiber composite

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Abstract

This study investigates the flow velocity effect on the hygrothermal behavior of the polyester glass fiber composite. The composite material contains fillers additives aluminum silicate pigments (ASP 400). They are exposed to humidity under different temperatures. The humidity concentration is higher on the surface and it continuously decreases toward the core of the material. The increase of the fillers additives and the flow velocity induce an augmentation of the diffusion coefficient and the amount of absorbed humidity. At a high temperature, the absorption curve presents a fall, and it is due to the coalescence of the crack, which propagates inside the material, decreasing the rigidity of the material. The finite element method is used to simulate the humidity diffusion through composite material. The comparison between the experimental and numerical results shows that the model can predict the hygrothermal behavior of the polyester/glass fiber taking in account the flow velocity factor.

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Authors and Affiliations

  1. Laboratory of Mechanics of Sousse, National Engineering School of Sousse, University of Sousse, Sousse, Tunisia

    Mohamed Ounaies & Hachmi Ben Daly

  2. Laboratory of Mechanical Engineering, National School of Engineers of Monastir, Monastir, Tunisia

    Manel Harchay

  3. Engineering Production Mechanics and Materials Unit (UGPM2), National Engineering School of Sfax, University of Sfax, B.P W3038, Sfax, Tunisia

    Fakhreddine Dammak

Authors
  1. Mohamed Ounaies
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  2. Manel Harchay
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  3. Fakhreddine Dammak
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  4. Hachmi Ben Daly
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Correspondence to Mohamed Ounaies.

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Ounaies, M., Harchay, M., Dammak, F. et al. Numerical simulation of humidity diffusion through the polyester/glass fiber composite. Int J Adv Manuf Technol 105, 4237–4243 (2019). https://doi.org/10.1007/s00170-019-04411-9

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  • DOI: https://doi.org/10.1007/s00170-019-04411-9

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