Vibration fatigue behavior of 2024-T62 aluminum alloy cantilever beam under different vibration state

Haitao Hu, Yulong Li, Jinli Wang

科研成果: 书/报告/会议事项章节会议稿件同行评审

1 引用 (Scopus)

摘要

The vibration fatigue experiments of cantilever beam structures were performed to investigate the fatigue behavior of 2024-T62 aluminum alloy. Two types of cantilever beams with various natural frequencies under the sinusoidal excitation were investigated. The initial stress of two types of specimens were set in the same amplitude by adjusting the acceleration of electrodynamic shaker. Based on the stress history recorded by the strain gauge in fatigue test and the Miner's liner cumulative damage rule, the fatigue damage of the cantilever beam was calculated. The effect of vibration state on the vibration fatigue behavior of the cantilever beam was discussed. The experiment results show that the fatigue life of the cantilever beam, of which the initial vibration state is resonance, is longer than that of non-resonance. The calculated damage results were in accord with the reduction of the natural frequency measured in experiment. The reduction of natural frequency could be used to evaluate the fatigue damage of structures.

源语言英语
主期刊名Advances in Fracture and Damage Mechanics XI
出版商Trans Tech Publications Ltd
253-256
页数4
ISBN(印刷版)9783037854631
DOI
出版状态已出版 - 2012
活动11th International Conference on Fracture and Damage Mechanics, FDM 2012 - Xian, 中国
期限: 18 9月 201221 9月 2012

出版系列

姓名Key Engineering Materials
525-526
ISSN(印刷版)1013-9826
ISSN(电子版)1662-9795

会议

会议11th International Conference on Fracture and Damage Mechanics, FDM 2012
国家/地区中国
Xian
时期18/09/1221/09/12

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