Evaluation of Residual Stress Fields in Friction Stir Welded Zone Based on the Plastic Strain Increment and Mises Yield Criterion

doi:10.1007/s11665-022-07477-x

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	Evaluation of Residual Stress Fields in Friction Stir Welded Zone Based on the Plastic Strain Increment and Mises Yield Criterion
	Li, Yiyang ; Zhao, Jiaye ; Zhou, Jiangfan ; Yang, Yang; Huang XF(黄先富); Liu, Zhanwei
发表期刊	JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
	2023-07-01
卷号	32 期号:12 页码:5466-5474
ISSN	1059-9495
摘要	The residual stress generated during the welding process affects the mechanical properties of the material. In this study, a measurement method of residual stress fields in the friction stir welded zone is developed based on the plastic strain increment and Mises yield criterion. First, the relationship among the residual stress, the measured local yield strength, and the plastic strain increment is derived according to the Mises yield criterion. Then, through uniaxial tensile tests, the stress-strain curve of any point in the friction stir welded zone is obtained using the digital image correlation method. Finally, the distribution of residual stress around the friction stir welded zone is characterized by the derived relationship on the basis of accurately obtaining the local yield strength. The feasibility of the method developed in this paper for measuring residual stress is verified by comparison with the results of the mechanical method combined with the charge coupled device Moire method. Additionally, other material parameters such as modulus and yield strength can also be measured at the same time. The proposed method is applied to a mechanical properties evaluation of the friction stir welded joint of an aluminum alloy 6061T6 thin plate. The results show that the residual stress around the weld is tensile, showing a bimodal distribution, and the peak value of the residual stress is located in the thermomechanical affected zone. The strength has a double-valley distribution, and the local yield strength of the thermomechanical affected zone is the lowest. The mechanical properties of the thermomechanical affected zone are relatively poor, and it is the location that is prone to fracture.
关键词	aluminum alloy DIC method friction stir welding mises yield criterion plasticity theory residual stress field
学科领域	Materials Science, Multidisciplinary
DOI	10.1007/s11665-022-07477-x
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000865710100006
项目资助者	National Natural Science Foundation of China [11972084] ; National Science and Technology Major Project [2017-VI-0003-0073] ; Beijing National Science Foundation [1192014]
论文分区	Q4
力学所作者排名	3+
RpAuthor	Li, YY (corresponding author), Beijing Inst Technol, Sch Aerosp Engn, Beijing 100081, Peoples R China.
引用统计	被引频次：2[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/90186
专题	非线性力学国家重点实验室
作者单位	1.{Li Yiyang, Liu Zhanwei} Beijing Inst Technol Sch Aerosp Engn Beijing 100081 Peoples R China 2.{Zhao Jiaye} Inst Flexible Elect Technol Tsinghua Beijing 314006 Zhejiang Peoples R China 3.{Zhou Jiangfan} Beijing Inst Struct & Environm Engn Beijing 100076 Peoples R China 4.{Yang Yang} AECC Beijing Inst Aeronaut Mat Beijing 100095 Peoples R China 5.{Huang Xianfu} Chinese Acad Sci Inst Mech State Key Lab Nonlinear Mech LNM Beijing 100190 Peoples R China 6.{Huang Xianfu} Univ Chinese Acad Sci Sch Engn Sci Beijing 100049 Peoples R China
推荐引用方式 GB/T 7714	Li, Yiyang,Zhao, Jiaye,Zhou, Jiangfan,et al. Evaluation of Residual Stress Fields in Friction Stir Welded Zone Based on the Plastic Strain Increment and Mises Yield Criterion[J]. JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE,2023,32,12,:5466-5474.
APA	Li, Yiyang,Zhao, Jiaye,Zhou, Jiangfan,Yang, Yang,黄先富,&Liu, Zhanwei.(2023).Evaluation of Residual Stress Fields in Friction Stir Welded Zone Based on the Plastic Strain Increment and Mises Yield Criterion.JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE,32(12),5466-5474.
MLA	Li, Yiyang,et al."Evaluation of Residual Stress Fields in Friction Stir Welded Zone Based on the Plastic Strain Increment and Mises Yield Criterion".JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE 32.12(2023):5466-5474.

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