Instability criterion of materials in combined stress states and its application to orthogonal cutting process
文献类型：期刊论文
| 作者 | Ma W(马维); Li XW(李相旺); Dai LH(戴兰宏) ; Ling Z(凌中)
|
| 刊名 | INTERNATIONAL JOURNAL OF PLASTICITY
 |
| 出版日期 | 2012-03-15 |
| 卷号 | 30-31页码:18-40 |
| 通讯作者邮箱 | watwm@imech.ac.cn |
| 关键词 | Instability criterion Plastic collapse Cutting and forming Asymptotic analysis Thermomechanical processes Shear-Band Formation Chip Formation Strain Localization Simulation Temperatures Plasticity Prediction Rates Model Flow |
| ISSN号 | 0749-6419 |
| 产权排序 | [Ma, Wei;Li, Xiangwang; Dai, Lanhong; Ling, Zhong] Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China |
| 通讯作者 | Ma, W ; Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China. |
| 中文摘要 | The loadings of variable combined stresses may cause different instabilities of materials such as the shear localization instability or non-localized thermal softening instability. The purpose of this paper is to present a theoretical analysis of instability behaviors of material under the loading conditions of combined stresses and apply the analytical results to interpret the removal mechanisms of chip materials in cutting process. First, the perturbation analysis of material instability under the loading conditions of combined stresses and relatively critical conditions are presented, followed by discussions on relations between the instability behaviors of materials and the loading conditions. Then, the removal mechanisms of chip materials in cutting process are studied by numerical simulation. The formation of continuous and discontinuous chips is shown closely related to the plastic flow and instability behaviors of the chip material, and the transformation between the two types of chips is found dependent on the ratio of plastic work dissipated by dilatation deformation and that dissipated by shear deformation. |
| 学科主题 | 极端条件下的材料和结构 |
| 分类号 | 一类 |
| 收录类别 | SCI ; EI |
| 资助信息 | The authors acknowledge financial supports from the National Nature Science Foundation of China (Grant No. 10972227) and the National Key Basic Research Program of China (Grant No. 2009CB724401). |
| 原文出处 | http://dx.doi.org/10.1016/j.ijplas.2011.09.003 |
| 语种 | 英语 |
| WOS记录号 | WOS:000301626400002 |
| 公开日期 | 2013-01-18 |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/46635]  |
| 专题 | 力学研究所_流固耦合系统力学重点实验室(2012-) 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 | Ma W,Li XW,Dai LH,et al. Instability criterion of materials in combined stress states and its application to orthogonal cutting process[J]. INTERNATIONAL JOURNAL OF PLASTICITY,2012,30-31:18-40. |
| APA | 马维,李相旺,戴兰宏,&凌中.(2012).Instability criterion of materials in combined stress states and its application to orthogonal cutting process.INTERNATIONAL JOURNAL OF PLASTICITY,30-31,18-40. |
| MLA | 马维,et al."Instability criterion of materials in combined stress states and its application to orthogonal cutting process".INTERNATIONAL JOURNAL OF PLASTICITY 30-31(2012):18-40. |
入库方式： OAI收割
来源：力学研究所
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