Fatigue failure mechanisms and influential factors for aluminum alloy and its welded joint in a high-speed train
文献类型：期刊论文
| 作者 | Yu, Yangyang3,4; Guo YY(郭艺云)1,2; Wang SS(王赛赛)1,2; Cai, Junshuang3; Wu, Han1,2 ; Song, Yeheng3; Rui SS(芮少石)2; Sun CQ(孙成奇)1,2
|
| 刊名 | INTERNATIONAL JOURNAL OF FATIGUE
 |
| 出版日期 | 2025-04-01 |
| 卷号 | 193页码:12 |
| 关键词 | High-speed train Aluminum alloy Welding defects Fatigue failure Influential factors |
| ISSN号 | 0142-1123 |
| DOI | 10.1016/j.ijfatigue.2024.108759 |
| 通讯作者 | Rui, Shao-Shi(ruishaoshi@imech.ac.cn) |
| 英文摘要 | Aluminum alloy and its welded joint are widely used in high-speed trains, which are subjected to complex fatigue loadings in service. The fatigue failure mechanisms and influential factors for Base Metals (BMs) and Welding Metals (WMs) subjected to low cycle (dwell) fatigue (R = 0) and (very) high cycle fatigue (R = -1) loads were investigated. The development of cumulative strain in tension-tension low cycle (dwell) fatigue was attributed to "cyclic ratcheting effect", which developed only when the applied maximum stress level is higher than the yield strength. In that condition, the cumulative strains continually developed and resulted in ductile fracture for BMs, but gradually converged to a finite value and resulted in fatigue fracture for WMs. Further, the dwell loading contributed to slowing down the development speed of cumulative strain and extending the fatigue life for BMs. Moreover, the welding processing reduced the (very) high cycle fatigue strengths and shortened the fatigue lives due to the introduction of welding defects, and a model replacing the nominal maximum stress by an equivalent one was proposed for modeling the impact of those defects on fatigue properties, which agrees with the S-N data. |
| 分类号 | 一类 |
| WOS关键词 | HIGH-CYCLE FATIGUE ; DEFECTS ; STRESS ; LIFE ; STRENGTH ; BEHAVIOR ; STEELS ; DAMAGE |
| 资助项目 | CHINA RAILWAY[P2023J003] ; National Natural Science Foundation of China Basic Science Center for Multiscale Problems in Nonlinear Mechanics[11988102] |
| WOS研究方向 | Engineering ; Materials Science |
| 语种 | 英语 |
| WOS记录号 | WOS:001388468700001 |
| 资助机构 | CHINA RAILWAY ; National Natural Science Foundation of China Basic Science Center for Multiscale Problems in Nonlinear Mechanics |
| 其他责任者 | Rui, Shao-Shi |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/98027]  |
| 专题 | 力学研究所_非线性力学国家重点实验室 |
| 作者单位 | 1.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech LNM, Beijing 100190, Peoples R China; 3.CRRC Qingdao Sifang Locomot & Rolling Stock Co Ltd, Qingdao 266000, Shandong, Peoples R China; 4.Cent South Univ, Sch Traff & Transportat Engn, Changsha 410075, Hunan, Peoples R China; |
| 推荐引用方式 GB/T 7714 | Yu, Yangyang,Guo YY,Wang SS,et al. Fatigue failure mechanisms and influential factors for aluminum alloy and its welded joint in a high-speed train[J]. INTERNATIONAL JOURNAL OF FATIGUE,2025,193:12. |
| APA | Yu, Yangyang.,郭艺云.,王赛赛.,Cai, Junshuang.,Wu, Han.,...&孙成奇.(2025).Fatigue failure mechanisms and influential factors for aluminum alloy and its welded joint in a high-speed train.INTERNATIONAL JOURNAL OF FATIGUE,193,12. |
| MLA | Yu, Yangyang,et al."Fatigue failure mechanisms and influential factors for aluminum alloy and its welded joint in a high-speed train".INTERNATIONAL JOURNAL OF FATIGUE 193(2025):12. |
入库方式： OAI收割
来源：力学研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。