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Abstract
The thermo-physical properties of a plastically deformed solid are measured using a non-destructive photo-thermal method. The experiment is optimally designed in order to choose the optimal heat flux duration, the sample thickness and the thermocouple position. The thermo-physical properties of the deformed sample are then identified by minimizing the sum of squares of the differences between experimental measurements and numerical results of a 2D model describing the heat transfer in the cylindrical sample. These identification results are finally compared with standard thermal diffusivity measurements (isotropic model) made on both initial and deformed samples.