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The characterization of internal heat sources has been successfully applied in the field of non-destructive testing (e.g. vibrothermography) to obtain the geometrical parameters of vertical cracks by solving the ill-posed inverse problem [1]. In these techniques the crack or defect is heated and the change in the surface temperature is measured, by solving the inverse problem. Metaheuristic algorithms offer an alternative approach for optimization problems. This work aims at exploring the use of the so-called hill climbing metaheuristic algorithm to obtain the geometrical reconstruction of vertical cracks from time resolved vibrothermography measurements.

Application of the Hill Climbing Algorithm to the Geometrical Reconstruction of Vertical Buried Heat Sources Using Vibrothermography