Accompanying data for the paper "Interpretable crack features for the representation of kinematic fields in the case of fatigue overloads"

This dataset contains experimental data related to four overload cycles and the loading cycles that preceded each of them. The data were collected and organized to support the findings presented in the article entitled "Interpretable crack features for the representation of kinematic fields in the case of fatigue overloads".The data is organized into eight folders: • OVL1, OVL2, OVL3, OVL4: contain data for each overload cycle • cycle_before_OVL1, cycle_before_OVL2, cycle_before_OVL3, cycle_before_OVL4: contain data for the cycle preceding each overloadEach folder corresponds to a single loading cycle and contains the following: • Images.zip: a set of TIF images acquired during the experiment. The first image, named AA_CTIF_2023_07_ep_24b_initiation_000000.tif, is used as the reference image for Digital Image Correlation (DIC). • U/*.vtk: 2D displacement fields with respect to the initial reference image (no load, no crack). • deltaU/*.vtk: displacement field increments with respect to the begining of the loading cycle. • *.csv: a csv file containing: ◦ Load data (in kN) ◦ Crack features for all loading steps during the cycle extracted from the displacement increment (deltaU/*.vtk) Ufreckles is used to perform FE-based DIC using Q4P1 linear quadrangular elements and a median filter. Eventually, Linear Elastic Fracture Mechanics (LEFM) parameters are obtained post-projecting displacement fields on Williams' series using Ufreckles. The displacement and displacement increment are in pixel, the pixel size being 4,8 µm. The setting for DIC and crack features extraction are detailled in the paper.