Aalto University School of Engineering

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Full-field Strain Measurements for Microstructurally Small Fatigue Crack Propagation Using Digital Image Correlation Method

Evgenii Malitckii¹, Heikki Remes¹, Pauli Lehto¹, Sven Bossuyt¹

¹Department of Mechanical Engineering, Aalto University School of Engineering

Microstructurally small fatigue crack growth behavior is investigated using a novel methodological approach combining crack growth rate measurement and strain-field analysis to reveal the cumulative deformation field at sub-grain level.