Stuy on Fatigue Life of Aluminum Alloy Considering Fretting

5th Annual International Conference on Material Science and Environmental Engineering

材料科学;生态环境科学

Yang, Maosheng^1 ; Zhao, Hongqiang^1 ; Wang, Yunxiang^1 ; Chen, Xiaofei^1 ; Fan, Jiali^1

Qingdao Branch, Naval Aeronautical University, Qingdao, China^1

关键词: Bulk stress;    Commercial codes;    Fretting fatigue lives;    Friction work;    Normal loads;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/301/1/012087/pdf
DOI  :  10.1088/1757-899X/301/1/012087

来源: IOP

【 摘 要 】

To study the influence of fretting on Aluminum Alloy, a global finite element model considering fretting was performed using the commercial code ABAQUS. With which a new model for predicting fretting fatigue life has been presented based on friction work. The rationality and effectiveness of the model were validated according to the contrast of experiment life and predicting life. At last influence factor on fretting fatigue life of aerial aluminum alloy was investigated with the model. The results revealed that fretting fatigue life decreased monotonously with the increasing of normal load and then became constant at higher pressures. At low normal load, fretting fatigue life was found to increase with increase in the pad radius. At high normal load, however, the fretting fatigue life remained almost unchanged with changes in the fretting pad radius. The bulk stress amplitude had the dominant effect on fretting fatigue life. The fretting fatigue life diminished as the bulk stress amplitude increased.