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Regularized InfraRed Image Correlation Applied to Laser-Induced Thermal Shocks

Abstract : The thermomechanical behavior of a stainless steel undergoing thermal shocks is investigated with an infrared (IR) camera. The temperature and kinematic fields are determined simultaneously exploiting only IR frames. The thermal loading is imposed with a laser, which gives rise to very high local digital level variations. This effect is addressed thanks to a regularized infrared image correlation (R-IRIC) technique, which accounts for brightness and contrast variations. The resulting digital level residuals are reduced from 54% down to less than 1% of the dynamic range.
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  • HAL Id : hal-02445730, version 1

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A. Charbal, F. Hild, L. Vincent, S. Roux. Regularized InfraRed Image Correlation Applied to Laser-Induced Thermal Shocks. QIRT 2016 - Quantitative InfraRed Thermography, Jul 2016, Gdansk, Poland. ⟨hal-02445730⟩

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