Very-high-cycle fatigue behavior of a structural steel with and without induced surface defects
文献类型：期刊论文
| 作者 | Jiang QQ; Sun CQ(孙成奇) ; Liu XL(刘小龙); Hong YS(洪友士)
|
| 刊名 | INTERNATIONAL JOURNAL OF FATIGUE
 |
| 出版日期 | 2016 |
| 卷号 | 93期号:2页码:352-362 |
| 通讯作者邮箱 | hongys@imech.ac.cn |
| 关键词 | Very-high-cycle fatigue Surface defect Fine-granular-area Crack initiation Structural steel |
| ISSN号 | 0142-1123 |
| 产权排序 | [Jiang, Qingqing; Sun, Chengqi; Liu, Xiaolong; Hong, Youshi] Chinese Acad Sci, Inst Mech, LNM, Beijing 100190, Peoples R China |
| 通讯作者 | Hong, YS (reprint author), Chinese Acad Sci, Inst Mech, LNM, Beijing 100190, Peoples R China. |
| 中文摘要 | Fatigue tests via rotary bending were performed on the specimens with and without induced surface defects for a structural steel of medium carbon content to investigate the effect of surface defects on fatigue behavior in high-cycle fatigue and very-high-cycle fatigue (VHCF) regimes. The S-N data showed that induced surface defects substantially degraded the related fatigue strength. For the specimens without surface defects failed in VHCF regime, crack initiated from the interior of specimens with inclusions or matrix inhomogeneities as crack origin and the initiation regions were of different extents of rough surface. The observations on the profile samples cut from crack initiation regions revealed that the region was a layer of nanograins for the case of inclusion as crack origin, and was without grain refinement for the case of grain boundary as crack origin. For the specimens with induced surface defects, crack initiated from surface defects and the initiation region was without grain refinement. The characteristics of crack initiation were carefully examined and the effect of surface defects on fatigue strength degradation was analyzed by available models. (C) 2016 Elsevier Ltd. All rights reserved. |
| 分类号 | 二类/Q1 |
| 类目[WOS] | Engineering, Mechanical ; Materials Science, Multidisciplinary |
| 研究领域[WOS] | Engineering ; Materials Science |
| 关键词[WOS] | Very-high-cycle fatigue ; Surface defect ; Fine-granular-area ; Crack initiation ; Structural steel |
| 收录类别 | SCI ; EI |
| 原文出处 | http://dx.doi.org/10.1016/j.ijfatigue.2016.05.032 |
| 语种 | 英语 |
| WOS记录号 | WOS:000385604900017 |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/59700]  |
| 专题 | 力学研究所_非线性力学国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Jiang QQ,Sun CQ,Liu XL,et al. Very-high-cycle fatigue behavior of a structural steel with and without induced surface defects[J]. INTERNATIONAL JOURNAL OF FATIGUE,2016,93(2):352-362. |
| APA | Jiang QQ,Sun CQ,Liu XL,&Hong YS.(2016).Very-high-cycle fatigue behavior of a structural steel with and without induced surface defects.INTERNATIONAL JOURNAL OF FATIGUE,93(2),352-362. |
| MLA | Jiang QQ,et al."Very-high-cycle fatigue behavior of a structural steel with and without induced surface defects".INTERNATIONAL JOURNAL OF FATIGUE 93.2(2016):352-362. |
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。