| A calculation method for residual stress of cold expanded hole based on measured springback | |
Feng, Feng; Zhao, Zirui; Wang ZB(王子标) ; Li, Bo; Lin, Xiaoxuan; Zhang, Jianfu; Feng, Pingfa; Zhang, Xiangyu
| |
| Corresponding Author | Zhang, Xiangyu(aquilani@tsinghua.edu.cn) |
| Source Publication | MEASUREMENT
 |
| 2023-08-15 | |
| Volume | 218Pages:13 |
| ISSN | 0263-2241 |
| Abstract | Cold expansion can improve the fatigue life of bearing hole by introducing compressive residual stress. However, there is yet difficulty to measure the stress of hole wall because of the geometry and device limitations. In this study, a calculation method of residual stress based on the experimental-theoretical method is proposed by considering the circumferential symmetry of cold expansion. Stress and displacement are analyzed in the loading and unloading stages, and the measured springback is used in the unloading stage. The residual stress accuracy of the proposed method is significantly better than that of the classical elastic-plastic theory. Moreover, the effects of interference, expansion cycles and expansion speed on surface integrity and fatigue life are analyzed. It is found that interference is the most influencing parameter in coad expansion process, and there is a saturation effect of interference on improving the residual stress and fatigue life of bearing holes. |
| Keyword | Bearing hole Aluminum alloy Cold expansion Compressive stress Springback |
| DOI | 10.1016/j.measurement.2023.113262 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:001088202200001 |
| WOS Keyword | FATIGUE PERFORMANCE ; EXPANSION ; LIFE |
| WOS Research Area | Engineering ; Instruments & Instrumentation |
| WOS Subject | Engineering, Multidisciplinary ; Instruments & Instrumentation |
| Funding Project | National Key Research and Develop- ment Program[2022YFB3405102] ; National Natural Science Founda- tion of China[52275441] ; National Natural Science Founda- tion of China[52005023] ; National Natural Science Foundation of Shenzhen City[WDZC20200817152115001] |
| Funding Organization | National Key Research and Develop- ment Program ; National Natural Science Founda- tion of China ; National Natural Science Foundation of Shenzhen City |
| Classification | 一类 |
| Ranking | 3 |
| Contributor | Zhang, Xiangyu |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/93283 |
| Collection | 非线性力学国家重点实验室 |
| Recommended Citation GB/T 7714 | Feng, Feng,Zhao, Zirui,Wang ZB,et al. A calculation method for residual stress of cold expanded hole based on measured springback[J]. MEASUREMENT,2023,218:13. |
| APA | Feng, Feng.,Zhao, Zirui.,王子标.,Li, Bo.,Lin, Xiaoxuan.,...&Zhang, Xiangyu.(2023).A calculation method for residual stress of cold expanded hole based on measured springback.MEASUREMENT,218,13. |
| MLA | Feng, Feng,et al."A calculation method for residual stress of cold expanded hole based on measured springback".MEASUREMENT 218(2023):13. |
| Files in This Item: | Download All | |||||
| File Name/Size | DocType | Version | Access | License | ||
| Jp2023Fa211.pdf（9906KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Download | |
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