A numerical study of grain size effects on the strength and elongation of Al polycrystals using strain gradient plasticity theory
文献类型：期刊论文
| 作者 | L. Zhou ; S. X. Li ; W. Ke |
| 刊名 | International Journal of Materials Research
 |
| 出版日期 | 2008 |
| 卷号 | 99期号:2页码:191-196 |
| 关键词 | strain gradient plasticity classical plasticity finite element method Al polycrystals size effect matrix composites particle-size length scale aluminum deformation ductility |
| ISSN号 | 1862-5282 |
| 中文摘要 | By incorporating the constitutive equations based on classical plasticity and the mechanism-based strain gradient plasticity with finite element software, the stress-strain relationships and uniform elongations of Al polycrystals with different grain sizes were studied numerically. The calculation results indicate that grain refinement cannot substantially improve the uniform elongation but can increase the yield strength of Al polycrystals when the grain size is of the order of the micron and submicron scale. The Hall-Petch relationship for yield strength holds and the uniform elongation decreases with decreasing grain size. The calculation results in general agree well with the experiment data. |
| 原文出处 | |
| 公开日期 | 2012-04-13 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/33389]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 推荐引用方式 GB/T 7714 | L. Zhou,S. X. Li,W. Ke. A numerical study of grain size effects on the strength and elongation of Al polycrystals using strain gradient plasticity theory[J]. International Journal of Materials Research,2008,99(2):191-196. |
| APA | L. Zhou,S. X. Li,&W. Ke.(2008).A numerical study of grain size effects on the strength and elongation of Al polycrystals using strain gradient plasticity theory.International Journal of Materials Research,99(2),191-196. |
| MLA | L. Zhou,et al."A numerical study of grain size effects on the strength and elongation of Al polycrystals using strain gradient plasticity theory".International Journal of Materials Research 99.2(2008):191-196. |
入库方式： OAI收割
来源：金属研究所
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