Effect of tilt and twist angles on the cleavage crack propagation Article Swipe

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Twist Tilt (camera) Cleavage (geology) Geometry Materials science Structural engineering Mathematics Engineering Composite material Fracture (geology)

Vipul Jain , Arya Chatterjee , Shamayita Patra , Debalay Chakrabarti , Abhijit Ghosh ·

YOU? · · 2019 · Open Access · · DOI: https://doi.org/10.48550/arxiv.1902.04252 · OA: W2914022416

We report the mechanism of cleavage crack deviation at grain boundaries. A fracture mechanics based model has been developed to combine the effect of tilt and twist angles between cleavage planes on the reduction in normalized energy release rate. Furthermore, electron back-scatter diffraction analysis on cleavage fracture surface has been carried out. The microstructural features associated with the presence of tilt and twist angle at the grain boundary have been identified and found to be consistent with the prediction from the analytical model.