Mechanical Assistance to DIC

Digital Image Correlation (DIC) is an ill-posed problem. To circumvent this difficulty, the needed regularization is often introduced implicitly through the choice of a kinematic basis used to embed the sought solution for displacement fields. Alternatively, a priori information on the mechanical behavior of the studied specimen is often available. This presentation is focused on different ways of supplementing DIC with mechanical information to achieve enhanced fidelity and robustness. Adapted unstructured mesh is used herein as an example of such a coupling.