Effect of grain size on slow fatigue crack propagation and plastic deformation near crack tip
文献类型：期刊论文
| 作者 | Deng RY(邓蓉英) ; Yu G(俞刚); Li H
|
| 刊名 | Theoretical and Applied Fracture Mechanics
 |
| 出版日期 | 1987 |
| 卷号 | 7期号:1页码:37-40 |
| ISSN号 | 0167-8442 |
| 中文摘要 | Fatigue crack growth and its threshold are investigated at a stress ratio of 0.5 for the three-point bend specimen made of Austenitic stainless steel. The effect of grain size on the crack tip plastic deformation is investigated. The results show that the threshold value Δkth increases linearly with the square root of grain size d and the growth rate is slower for materials with larger grain size. The plastic zone size and ratio for different grain sizes are different at the threshold. The maximum stress intensity factor is kmax and σys is the yield strength. At the same time, the characteristics of the plastic deformation development is discontinuous and anti-symmetric as the growth rate is increased from 2·10—8 to 10−7 mm/cycle. |
| 类目[WOS] | Engineering, Mechanical ; Mechanics |
| 研究领域[WOS] | Engineering ; Mechanics |
| 收录类别 | SCI |
| 原文出处 | http://www.sciencedirect.com/science/article/pii/0167844287900577 |
| 语种 | 英语 |
| WOS记录号 | WOS:A1987G375600006 |
| 公开日期 | 2009-08-03 ; 2010-08-20 |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/39740]  |
| 专题 | 力学研究所_力学所知识产出(1956-2008) |
| 推荐引用方式 GB/T 7714 | Deng RY,Yu G,Li H. Effect of grain size on slow fatigue crack propagation and plastic deformation near crack tip[J]. Theoretical and Applied Fracture Mechanics,1987,7(1):37-40. |
| APA | Deng RY,Yu G,&Li H.(1987).Effect of grain size on slow fatigue crack propagation and plastic deformation near crack tip.Theoretical and Applied Fracture Mechanics,7(1),37-40. |
| MLA | Deng RY,et al."Effect of grain size on slow fatigue crack propagation and plastic deformation near crack tip".Theoretical and Applied Fracture Mechanics 7.1(1987):37-40. |
入库方式： OAI收割
来源：力学研究所
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