Simulation of effects of grain scale on Al polycrystal strength using strain gradient plasticity concept
文献类型：期刊论文
| 作者 | Zhou Li; Li Shouxin; Ke Wei |
| 刊名 | ACTA METALLURGICA SINICA
 |
| 出版日期 | 2006-07-11 |
| 卷号 | 42期号:7页码:781-784 |
| 关键词 | strain gradient plasticity classical plasticity finite element Al polycrystal scale effect |
| ISSN号 | 0412-1961 |
| 通讯作者 | Zhou Li(lizhou@imr.ac.cn) |
| 英文摘要 | By using the classical plasticity theory and the micro-mechanism-based strain gradient (MSG) plasticity theory, the stress-strain relationships of Al polycrystals with different grain sizes were simulated. The results indicated that the work hardening in the stress strain curves predicted by the strain gradient constitutive equation evidently increases with the decrease of grain size. The stress-strain curve for the polycrystal with grain diameter d=20 mu m is slightly above that predicted by classical plasticity theory, showing further that with the increase of grain size the contribution of strain gradient is decreased. At the same time, the fitting curve of the yield strength vs grain size is comparatively consistent with the Hall-Petch ralationshop. |
| WOS研究方向 | Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000239402500019 |
| 出版者 | SCIENCE CHINA PRESS |
| 源URL | [http://ir.imr.ac.cn/handle/321006/86662]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Zhou Li |
| 作者单位 | 1.Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110016, Peoples R China 2.Chinese Acad Sci, State Key Lab Corros & Protect, Inst Met Res, Shenyang 110016, Peoples R China 3.Shenyang Ligong Univ, Dept Mech Engn, Shenyang 110168, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhou Li,Li Shouxin,Ke Wei. Simulation of effects of grain scale on Al polycrystal strength using strain gradient plasticity concept[J]. ACTA METALLURGICA SINICA,2006,42(7):781-784. |
| APA | Zhou Li,Li Shouxin,&Ke Wei.(2006).Simulation of effects of grain scale on Al polycrystal strength using strain gradient plasticity concept.ACTA METALLURGICA SINICA,42(7),781-784. |
| MLA | Zhou Li,et al."Simulation of effects of grain scale on Al polycrystal strength using strain gradient plasticity concept".ACTA METALLURGICA SINICA 42.7(2006):781-784. |
入库方式： OAI收割
来源：金属研究所
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