| Analysis of crack initiation location and its influencing factors of fretting fatigue in aluminum alloy components |
| |
| 作者姓名： | Jian WANG Caizhi ZHOU |
| |
| 作者单位： | 1. School of Civil Engineering and Architecture, Southwest University of Science and Technology;2. Shock and Vibration of Engineering Materials and Structures Key Laboratory of Sichuan Province, Southwest University of Science and Technology;3. Department of Mechanical Engineering, University of South Carolina |
| |
| 摘 要： | To promote the development of fretting fatigue assessment and control technology for aircraft components, this paper uses the Crystal Plasticity Finite Element(CPFE) method and sub-modeling technology to study the Crack Initiation Location(CIL) of fretting fatigue in Aluminum Alloy(AA) specimens. The effects of external excitations such as normal load, tangential load, and axial stress on the CIL are investigated. It is found that the Most Likely Cracked(MLC) site revealed in a specimen and the ...
|
| 收稿时间： | 16 July 2021 |
Analysis of crack initiation location and its influencing factors of fretting fatigue in aluminum alloy components |
| |
| Jian WANG,Caizhi ZHOU.Analysis of crack initiation location and its influencing factors of fretting fatigue in aluminum alloy components[J].Chinese Journal of Aeronautics,2022,35(6):420-436. |
| |
| Institution: | 1. School of Civil Engineering and Architecture, Southwest University of Science and Technology, Mianyang 621010, China;2. Shock and Vibration of Engineering Materials and Structures Key Laboratory of Sichuan Province, Southwest University of Science and Technology, Mianyang 621010, China;3. Department of Mechanical Engineering, University of South Carolina, Columbia 29208, United States |
| |
| Abstract: | To promote the development of fretting fatigue assessment and control technology for aircraft components, this paper uses the Crystal Plasticity Finite Element (CPFE) method and sub-modeling technology to study the Crack Initiation Location (CIL) of fretting fatigue in Aluminum Alloy (AA) specimens. The effects of external excitations such as normal load, tangential load, and axial stress on the CIL are investigated. It is found that the Most Likely Cracked (MLC) site revealed in a specimen and the CIL may always be consistent after a limited number of cyclic loadings, and they are both located at the hotspot on the contact surface or in the subsurface. The MLC site may also migrate from the hotspot on the contact surface to the hotspot in the subsurface with an increase of the cyclic number, and finally transform into a CIL. The relationship between the MLC site and the CIL of fretting fatigue and its influencing factors have also been described, as well as the identification method of the CIL of fretting fatigue, which provide theoretical and technical supports for anti-fretting fatigue design of AA components in service. |
| |
| Keywords: | Crack nucleation Crystal plasticity Equivalent plastic strain Fretting fatigue Hotspot |
| 本文献已被 ScienceDirect 等数据库收录！ |
