Abstract
This research program focuses on a hybrid experimental and numerical approach to identifying the mechanical state in the vicinity of a crack. The digital image correlation, as corrected by interpolating a theoretical displacement field, enables determining the crack opening intensity factors representative of the kinematic state of crack lips. A finite element model is introduced for calculating stress intensity factors. The parallelism derived from the DIC method and FEM approach is presented by means of a specific identification algorithm that allows computing the energy release rate within a common finite element mesh. This algorithm is then illustrated by testing the opening-mode configuration for a PVC sample.
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Pop, O., Meite, M., Dubois, F. et al. Identification algorithm for fracture parameters by combining DIC and FEM approaches. Int J Fract 170, 101–114 (2011). https://doi.org/10.1007/s10704-011-9605-y
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DOI: https://doi.org/10.1007/s10704-011-9605-y