| Fatigue failure transition evaluation of load carrying cruciform welded joints by effective notch energy model | |
Zhou, Guangtao1; Kuang, Jingzhen1; Song, Wei2; Qian GA(钱桂安)3 ; Berto, Filippo4
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| 通讯作者 | Song, Wei() |
| 发表期刊 | ENGINEERING FAILURE ANALYSIS
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| 2022-08-01 | |
| 卷号 | 138页码:15 |
| ISSN | 1350-6307 |
| 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. |
| 关键词 | Load-carrying welded joint Low and high cycle fatigue Material heterogeneity Failure transition Effective notch energy |
| DOI | 10.1016/j.engfailanal.2022.106328 |
| 收录类别 | SCI ; EI |
| 语种 | 英语 |
| WOS记录号 | WOS:000798835100003 |
| 关键词[WOS] | CRACK INITIATION ; STRENGTH ; BEHAVIORS ; DESIGN ; STEEL |
| WOS研究方向 | Engineering ; Materials Science |
| WOS类目 | Engineering, Mechanical ; Materials Science, Characterization & Testing |
| 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 |
| 项目资助者 | 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 |
| 论文分区 | 二类 |
| 力学所作者排名 | 3+ |
| RpAuthor | Song, Wei |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://dspace.imech.ac.cn/handle/311007/89571 |
| 专题 | 非线性力学国家重点实验室 |
| 作者单位 | 1.Huaqiao Univ, Coll Mech Engn & Automation, Xiamen 361021, Peoples R China; 2.Xuzhou Univ Technol, Sch Mech & Elect Engn, Xuzhou 221018, Peoples R China; 3.Chinese Acad Sci, Inst Mech, LNM, Beijing 100190, Peoples R China; 4.Norwegian Univ Sci & Technol NTNU, Dept Mech & Ind Engn, Richard Birkelands Vei 2b, N-7491 Trondheim, Norway |
| 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,钱桂安,&Berto, Filippo.(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. |
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