Mechanical stress and fatigue analysis
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Abstract
Abstract
Based on the rotary bending loading principle, an experimental investigation into the fatigue properties of 6201 aluminum alloy individual wires is presented. Considering the long design service life, high-cycle fatigue (HCF) behavior, and slender geometry (high length-to-diameter ratio) of these wires, a high-speed rotary bending fatigue test platform is custom-designed and constructed. The design mechanically maximizes the probability of fracture at the midpoint of the constant-cross-section specimen, even when considering clamping damage at the ends. Through mechanical derivation for the test platform, based on the beam bending theory and the finite element method, a quantitative relationship is established between the bending stress amplitude and the deflection angle at the clamped end. Using this platform, the fatigue lives of 6201 aluminum alloy individual wires under various bending stress amplitudes are tested, and the stress–life (S-N) curve is obtained. The developed experimental method and the reported fatigue data in this study provide essential experimental and material data for fatigue life prediction and engineering design of 6201 aluminum alloy individual wires.
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@article{Miao2026Rotary,
title = {Rotary Bending Fatigue of 6201 Aluminum Alloy Individual Wires},
author = {Yaojun Miao and Chongmin She and Zhou Feng and Kezhen Li and Taian Chen and Jiafen Cao and Jianqiang Zhang and Haiyan Gao and Haiyang Jiang and Baode Sun and Jian Wang and Yufei Wang},
journal = {Metals},
year = {2026},
doi = {10.3390/met16080877},
url = {https://doi.org/10.3390/met16080877}
}FAQ
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