Evaluation of Fatigue Life for TC4 Notched Components Under Variable Amplitude Multiaxial Loading

被引：0
|
作者：
Z. R. Wu
X. T. Hu
L. Zhu
Y. D. Song
Z. X. Li
机构：
[1] Nanjing University of Aeronautics and Astronautics,State Key Laboratory of Mechanics and Control of Mechanical Structures
[2] Nanjing University of Aeronautics and Astronautics,College of Energy and Power Engineering
来源：
Iranian Journal of Science and Technology, Transactions of Mechanical Engineering | 2019年 / 43卷
关键词：
Multiaxial fatigue; Critical plane approach; Variable amplitude loading; Life prediction; Notched specimen;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Fatigue tests under variable amplitude multiaxial loading were conducted on notched specimens of titanium alloy TC4. The key issues of fatigue life estimation under variable amplitude multiaxial loading for notched components have been researched. Multiaxial fatigue critical area of notched specimen was determined first. Then, fatigue damage control parameter based on Wu–Hu–Song model and rainflow cycle counting as well as Miner–Palmgren rule was applied in prediction approach. The proposed prediction procedures were checked against the test data of TC4 notched specimens under variable amplitude multiaxial loading. The prediction results are all within a factor of two scatter band of the test results.
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收藏
页码：235 / 243
页数：8
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