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Fatigue failure transition evaluation of load carrying cruciform welded joints by effective notch energy model

文献类型：期刊论文

作者Zhou, Guangtao4; Kuang, Jingzhen4; Song, Wei3; Qian, Guian2; Berto, Filippo1; Qian GA(钱桂安)
刊名ENGINEERING FAILURE ANALYSIS
出版日期2022-08-01
卷号138页码:15
ISSN号1350-6307
关键词Load-carrying welded joint Low and high cycle fatigue Material heterogeneity Failure transition Effective notch energy
DOI10.1016/j.engfailanal.2022.106328
通讯作者Song, Wei()
英文摘要This paper investigates fatigue failure transition boundary of Load-carrying Cruciform Weld Joint (LCWJ) with different yield strength mismatch ratios and geometrical sizes of welded joints under cyclic loading conditions using a semi-empirical analytical method, which is based on the obtained fatigue test data and finite element analysis. To examine the fatigue failure mode transition relationship in CLWJs, different mismatch ratios and local geometries (plate thickness, weld size, and penetration ratio) were designed and fabricated to evaluate potential fatigue initiations (weld toe or weld root). The numerical simulations of cyclic responses at weld toe and weld root were conducted by material cyclic plastic properties from fatigue data of standard coupon specimens. A uniform effective notch energy indicator in the previous investigation was utilized to characterize the low and high cycle fatigue life by extending the SED method on the combination of generalized Neuber concept of Fictitious Notch Rounding (FNR). The related analytical formulations for potential failure points were used to predict the fatigue assessment indicator of LCWJ, considering the effects of plasticity and mechanical heterogeneity and geometry configurations. The effective notch energy relationship between the weld toe and weld root in LCWJ was determined by the established analytical solutions, verified by the fatigue data. The strategy is expected to provide some insights into assessing fatigue life for various types of weld joints for different potential failure locations.
WOS关键词CRACK INITIATION ; STRENGTH ; BEHAVIORS ; DESIGN ; STEEL
资助项目National Natural Science Foundation of China[52105403] ; Natural Science Foundation of Jiangsu Province[BK20200174] ; Natural Science Foundation of Fujian Province[2021J01299] ; Postdoctoral Science Foundation of China[2021M702753] ; Natural Science Foundation of the Jiangsu Higher Education In-stitutions[20KJB430008] ; Xuzhou Basic Research Program of Science and Technology[KC21037] ; Qinglan project of Jiangsu province
WOS研究方向Engineering ; Materials Science
语种英语
WOS记录号WOS:000798835100003
资助机构National Natural Science Foundation of China ; Natural Science Foundation of Jiangsu Province ; Natural Science Foundation of Fujian Province ; Postdoctoral Science Foundation of China ; Natural Science Foundation of the Jiangsu Higher Education In-stitutions ; Xuzhou Basic Research Program of Science and Technology ; Qinglan project of Jiangsu province
源URL[http://dspace.imech.ac.cn/handle/311007/89570]  
专题力学研究所_非线性力学国家重点实验室
通讯作者Song, Wei
作者单位1.Norwegian Univ Sci & Technol NTNU, Dept Mech & Ind Engn, Richard Birkelands Vei 2b, N-7491 Trondheim, Norway
2.Chinese Acad Sci, Inst Mech, LNM, Beijing 100190, Peoples R China
3.Xuzhou Univ Technol, Sch Mech & Elect Engn, Xuzhou 221018, Peoples R China
4.Huaqiao Univ, Coll Mech Engn & Automation, Xiamen 361021, Peoples R China
推荐引用方式
GB/T 7714		 Zhou, Guangtao,Kuang, Jingzhen,Song, Wei,et al. Fatigue failure transition evaluation of load carrying cruciform welded joints by effective notch energy model[J]. ENGINEERING FAILURE ANALYSIS,2022,138:15.
APA Zhou, Guangtao,Kuang, Jingzhen,Song, Wei,Qian, Guian,Berto, Filippo,&钱桂安.(2022).Fatigue failure transition evaluation of load carrying cruciform welded joints by effective notch energy model.ENGINEERING FAILURE ANALYSIS,138,15.
MLA Zhou, Guangtao,et al."Fatigue failure transition evaluation of load carrying cruciform welded joints by effective notch energy model".ENGINEERING FAILURE ANALYSIS 138(2022):15.

入库方式： OAI收割

来源：力学研究所

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