Path differences between quasistatic and fatigue cracks in anisotropic media

2024/04/12 by Xinyuan Zhai, Zhai, Xinyuan, Thomas Corre +7
Engineering · Materials Science · #FOS: Physical sciences #Fatigue and fracture mechanics #High-Velocity Impact and Material Behavior #Materials Science (cond-mat.mtrl-sci) #Rock Mechanics and Modeling

paper · pdf · doi:10.48550/arxiv.2404.08451

openalex publication_date 2024/04/12 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

The propagation path of quasistatic cracks under monotonic loading is known to be strongly influenced by the anisotropy of the fracture energy in crystalline solids or engineered materials with a regular microstructure. Such cracks generally follow directions close to minima of the fracture energy. Here we demonstrate both experimentally and computationally that fatigue cracks under cyclic loading follow dramatically different paths that are predominantly dictated by the symmetry of the loading with the microstructure playing a negligible or subdominant role.

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