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Quantitative calorimetry and TSA in case of low thermal signal and strong spatial gradients: Application to glass materials

Abstract : In the present paper, the thermo-mechanical characterization of a holed glass sample under cyclic loading is carried out. Due to the low thermoelastic response obtained for such a material, the thermal movie has been preliminary filtered. The experimental stress field obtained from the Thermoelastic Stress Analysis (TSA) is well correlated to the finite element model. It validates both the use of this experimental technique to study the thermoelastic response of brittle materials and the filtering methodology. Finally, the corresponding calorimetric response has been determined by using a simplified formulation of the heat diffusion equation. This permits to quantify heat sources and to carry out energy balances.
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G. Corvec, Eric Robin, Jean-Benoit Le Cam, P. Lucas, Jean-Christophe Sangleboeuf, et al.. Quantitative calorimetry and TSA in case of low thermal signal and strong spatial gradients: Application to glass materials. Annual Conference and Exposition on Experimental and Applied Mechanics, Jun 2017, Indianapolis, United States. pp.13-19, ⟨10.1007/978-3-319-62899-8_3⟩. ⟨hal-01695490⟩

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