Local experimental investigations of the thermomechanical behavior of a coarse-grained aluminum multicrystal using combined DIC and IRT methods

Abstract : This paper presents Digital Image Correlation (DIC) and Infrared Thermography (IRT) methods to investigate the thermomechanical behavior of an aluminum at the microstructural scale. Electron BackScattered Diffraction (EBSD) is used to characterize the microstructure of a 3 mm thick specimen with centimetric grain size. This study combines the following imaging techniques: DIC to obtain displacement and strain fields during the test, and IRT to estimate temperature and heat source fields induced by the mechanical loading. Ultimately, the aim of this methodology is to provide energy balance during mechanical test at the scale of the microstructure, in order to propose thermomechanical con-stitutive modelling of crystalline plasticity.
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Li Li, Jean-Michel Muracciole, Laurent Waltz, Laurent Sabatier, F Barou, et al.. Local experimental investigations of the thermomechanical behavior of a coarse-grained aluminum multicrystal using combined DIC and IRT methods. Optics and Lasers in Engineering, Elsevier, 2016, 81, pp.1-10. ⟨10.1016/j.optlaseng.2016.01.001⟩. ⟨hal-01287711⟩

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