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| Analysis of Impact of Parameters on the Localized Plasticity of 2A12 Aluminum Alloy Fretting Fatigue |
| Received:May 14, 2014 Revised:June 07, 2014 |
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| DOI：10. 7643 /issn. 1672-9242. 2014. 05. 001 |
| KeyWord:2A12 aluminum alloy FEM fretting fatigue parameters localized plasticity |
| Author | Institution |
| CHEN Yue-liang |
Qingdao Branch of Naval Aeronautical Engineering University, Qingdao , China |
| XU Li |
Qingdao Branch of Naval Aeronautical Engineering University, Qingdao , China;Institute of Naval Aviation, Huludao , China |
| ZHANG Yong |
Qingdao Branch of Naval Aeronautical Engineering University, Qingdao , China |
| YU Da-zhao |
Qingdao Branch of Naval Aeronautical Engineering University, Qingdao , China |
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| Abstract: |
| Objective To study the effects of localized plasticity on fretting fatigue. Methods The 2A12 aluminum alloy cylindrical/plane fretting fatigue FEA model was established, FEA analysis was performed considering the plasticity, and the effect of fretting fatigue parameters on localized plasticity were studied. Results The results indicated that the localized plasticity occurred on the surface or sub-surface of the sample, and the maximum equivalent plastic deformation increased with decreasing fretting pad radius. With increasing axial stress, the maximum tangential stress increased. With increasing COF, the maximum value of shear stress increased sharply, the stick zone increased and the slip zone decreased, however,COF had no effect on the size of the whole region. Conclusion The parameters of fretting fatigue had certain effects on localized plasticity. |
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