Plastic stress-strain fields and blunting effects during large deformations
文献类型：期刊论文
| 作者 | Liu HQ; Li GC(李国琛)
|
| 刊名 | Engineering Fracture Mechanics
 |
| 出版日期 | 1992 |
| 卷号 | 42期号:5页码:737-745 |
| ISSN号 | 0013-7944 |
| 通讯作者 | LIU, HQ (reprint author), ACAD SINICA,INST MECH,BEIJING 100080,PEOPLES R CHINA. |
| 中文摘要 | Plastic stress-strain fields of two types of steel specimens loaded to large deformations are studied. Computational results demonstrate that, owing to the fact that the hardening exponent of the material varies as strain enlarges and the blunting of the crack tip, the well known HRR stress field in the plane strain model can only hold for the stage of a small plastic strain. Plastic dilatancy is shown to have substantial effects on strain distributions and blunting. To justify the constitutive equations used for analysis and to check the precision of computations, the load-deflection of a three-point bend beam and the load-elongation of an axisymmetric bar notched by a V-shaped cut were tested and recorded. The computed curves are in good accordance with experimental data. |
| 类目[WOS] | Mechanics |
| 研究领域[WOS] | Mechanics |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:A1992JF20600003 |
| 公开日期 | 2009-08-03 ; 2010-08-20 |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/39464]  |
| 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 | Liu HQ,Li GC. Plastic stress-strain fields and blunting effects during large deformations[J]. Engineering Fracture Mechanics,1992,42(5):737-745. |
| APA | Liu HQ,&李国琛.(1992).Plastic stress-strain fields and blunting effects during large deformations.Engineering Fracture Mechanics,42(5),737-745. |
| MLA | Liu HQ,et al."Plastic stress-strain fields and blunting effects during large deformations".Engineering Fracture Mechanics 42.5(1992):737-745. |
入库方式： OAI收割
来源：力学研究所
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