Integrated digital image correlation applied to elasto-plastic identification in a biaxial experiment

Morgan Bertin (1) , Francois Hild (1) , Stéphane Roux (1) , Florent Mathieu (1) , Hugo Leclerc (1) , Patrick Aimedieu (1)

1 LMT - Laboratoire de Mécanique et Technologie

The identification of the parameters of several constitutive laws is performed with the integrated digital image correlation (IDIC) technique in a biaxial experiment for a cruciform specimen made of stainless steel. The sought material parameters are assessed with the contribution of both reaction forces (from load sensors) and displacement fields (measured via digital image correlation). For each constitutive law a global residual quantifying the model error is assessed.

Mots clés: Digital image correlation (DIC); full-field measurements; identification; constitutive law

Domaines: Mécanique des matériaux [physics.class-ph]

Morgan Bertin, Francois Hild, Stéphane Roux, Florent Mathieu, Hugo Leclerc, et al.. Integrated digital image correlation applied to elasto-plastic identification in a biaxial experiment. Journal of Strain Analysis for Engineering Design, 2016, 51 (2), pp.118-131. ⟨10.1177/0309324715614759⟩. ⟨hal-01303519⟩