Abstract
AbstractDigital Image Correlation (DIC) is a non‐contact optical method used to measure full‐field surface deformations. The technique is a fast, robust, highly scalable and accurate method for determining both the surface profile of a three‐dimensional object and the displacements (Lagrangian strains) on the surface of the object. From its inception in the early 1980s, the capabilities of computer‐based digital image correlation have grown tremendously. Since that time, it has proven to be an indispensable tool in the experimental characterization of structures and materials over a wide range of length and time scales. This chapter discusses the fundamental principles underlying the technique and its application in the experimental characterization of aerospace materials and structures.
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