A calculation method for residual stress of cold expanded hole based on measured springback

doi:10.1016/j.measurement.2023.113262

CORC > 力学研究所 > 中国科学院力学研究所 > 非线性力学国家重点实验室

	A calculation method for residual stress of cold expanded hole based on measured springback
	Feng, Feng 4; Zhao, Zirui 4; Wang, Zibiao 3; Li, Bo 4; Lin, Xiaoxuan 4; Zhang, Jianfu 1,2; Feng, Pingfa 1,2,4; Zhang, Xiangyu 1,2
刊名	MEASUREMENT
	2023-08-15
卷号	218 页码:13
关键词	Bearing hole Aluminum alloy Cold expansion Compressive stress Springback
ISSN号	0263-2241
DOI	10.1016/j.measurement.2023.113262
通讯作者	Zhang, Xiangyu(aquilani@tsinghua.edu.cn)
英文摘要	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.
资助项目	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]
WOS关键词	FATIGUE PERFORMANCE ; EXPANSION ; LIFE
WOS研究方向	Engineering ; Instruments & Instrumentation
语种	英语
WOS记录号	WOS:001088202200001
资助机构	National Key Research and Develop- ment Program ; National Natural Science Founda- tion of China ; National Natural Science Foundation of Shenzhen City
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/93282]
专题	力学研究所_非线性力学国家重点实验室
通讯作者	Zhang, Xiangyu
作者单位	1.Tsinghua Univ, Dept Mech Engn, State Key Lab Tribol Adv Equipment, Beijing 100084, Peoples R China 2.Tsinghua Univ, Dept Mech Engn, Beijing Key Lab Precis Ultraprecis Mfg Equipments, Beijing 100084, Peoples R China 3.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China 4.Tsinghua Univ, Shenzhen Int Grad Sch, Div Adv Mfg, Shenzhen 518055, Peoples R China
推荐引用方式 GB/T 7714	Feng, Feng,Zhao, Zirui,Wang, Zibiao,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.,Wang, Zibiao.,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.