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Thermomechanical modeling of glass cooling including thermal radiation using P1 method

Abstract : Glass tempering consists in heating a glass product over its transition temperature followed by a rapid cooling to the ambient temperature. This process is used to improve the mechanical resistance of the glass product with compressive stresses on the surface and tensile stresses in the core. The mechanical behavior is very dependent on the temperature, therefore an accurate knowledge of the heat transfer during the cooling process is highly necessary to obtain the best estimation of the residual stresses. Since glass is a semi-transparent material, thermal radiation takes place in addition to the conductive heat transfer especially at high temperatures. In this paper, we performed an axisymmetric modeling of glass tempering for a circular disk in contact with a metal mold including radiative effects computed by the P1 method and compared the thermal and mechanical results to experimental measurements. Good agreements with the experimental results are obtained
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Submitted on : Monday, November 22, 2021 - 1:37:17 PM
Last modification on : Tuesday, November 23, 2021 - 3:46:40 AM

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  • HAL Id : hal-03440126, version 1

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Kossiga Agboka, Fabien Béchet, Philippe Moreau, Dominique Lochegnies. Thermomechanical modeling of glass cooling including thermal radiation using P1 method. 23ème Congrès Français de Mécanique, Aug 2017, Lille, France. ⟨hal-03440126⟩

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