Researchers at The University of Tokyo have shown that for amorphous materials, cyclic material fatigue can begin to fracture at the same level of stress as fractures due to constant loading. By using computer simulations, the team was able to distinguish four distinct failure modes. This work could improve the lifetime of industrial machinery.
source https://www.lifetechnology.com/blogs/life-technology-science-news/research-team-reveals-surprising-findings-on-cyclic-material-fatigue-in-amorphous-materials