Automated Crack Detection and Measurement on large-scale Experiments based on Digital Image Correlation

Abstract

The acquisition and evaluation of the crack behaviour in experiments on quasi-brittle materials, such as concrete, mortar, or masonry is essential for understanding their structural behaviour. This article presents a fully automated procedure to detect cracks and measure crack kinematics in experiments instrumented with digital image correlation (DIC). With appropriate parameters, the procedure allows detecting crack locations with high precision and measuring very accurately crack kinematics even for large-scale experiments with complex crack patterns.