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Updated: Dec 24, 2025

Ultrasonic Fatigue Testing in the Tension-Compression Mode
Published on: March 7, 2018
Numerical Study on the Fatigue Limit of Metallic Glasses under Cyclic Tension-Compression Loading
Jinfeng Yan1,2, Wenjun Meng1,3, Zhi Chen1
1School of Mechanical Engineering, Taiyuan University of Science and Technology, Taiyuan 030024, China.
Abstract:
Numerical study was performed to determine the fatigue limit of metallic glass under tension-compression cyclic loading. A revised free-volume theory which considers the hydrostatic stress was utilized to make the predictions. Systematical simulations showed that a higher strain amplitude is prone to making the sample completely damaged earlier. However, lower strain fluctuations could result in a longer fatigue life. Shear banding evolution history described by free-volume localization could reasonably explain the mechanical responses of different samples. In addition, compressive loading could give rise to a higher stress than that under tensile loading because of hydrostatic stress contribution. In the end, a correlation between fatigue life and applied strain amplitude was plotted which could supply a guidance for designing the engineering application of metallic glass under periodic loading.
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