A new thermo-elasto-plasticity constitutive theory for polycrystalline metals
文献类型：期刊论文
| 作者 | Chen, Cen; Tang, Qiheng; Wang, Tzuchiang; Wang ZQ(王自强) ; Tang QH(汤奇恒); Chen C(陈岑)
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| 刊名 | ACTA MECHANICA SINICA
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| 出版日期 | 2015-06-01 |
| 卷号 | 31期号:3页码:338-348 |
| 通讯作者邮箱 | tcwang@imech.ac.cn |
| 关键词 | Thermo-elasto-plasticity constitutive theory Yield stress Hardening behaviors Finite temperature |
| ISSN号 | 0567-7718 |
| 产权排序 | [Chen, Cen; Tang, Qiheng; Wang, Tzuchiang] Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China |
| 通讯作者 | Wang, TC (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China. |
| 中文摘要 | In this study, the behavior of polycrystalline metals at different temperatures is investigated by a new thermo-elasto-plasticity constitutive theory. Based on solid mechanical and interatomic potential, the constitutive equation is established using a new decomposition of the deformation gradient. For polycrystalline copper and magnesium, the stress-strain curves from 77 to 764 K (copper), and 77 to 870 K (magnesium) under quasi-static uniaxial loading are calculated, and then the calculated results are compared with the experiment results. Also, it is determined that the present model has the capacity to describe the decrease of the elastic modulus and yield stress with the increasing temperature, as well as the change of hardening behaviors of the polycrystalline metals. The calculation process is simple and explicit, which makes it easy to implement into the applications. |
| 英文摘要 | In this study, the behavior of polycrystalline metals at different temperatures is investigated by a new thermo-elasto-plasticity constitutive theory. Based on solid mechanical and interatomic potential, the constitutive equation is established using a new decomposition of the deformation gradient. For polycrystalline copper and magnesium, the stress-strain curves from 77 to 764 K (copper), and 77 to 870 K (magnesium) under quasi-static uniaxial loading are calculated, and then the calculated results are compared with the experiment results. Also, it is determined that the present model has the capacity to describe the decrease of the elastic modulus and yield stress with the increasing temperature, as well as the change of hardening behaviors of the polycrystalline metals. The calculation process is simple and explicit, which makes it easy to implement into the applications. |
| 学科主题 | Engineering ; Mechanics |
| 分类号 | 二类 |
| 类目[WOS] | Engineering, Mechanical ; Mechanics |
| 研究领域[WOS] | Engineering ; Mechanics |
| 关键词[WOS] | MAGNESIUM ALLOY AZ31B ; FINITE-ELEMENT-METHOD ; ELEVATED-TEMPERATURES ; CRYSTAL PLASTICITY ; SINGLE-CRYSTALS ; STRAIN-RATE ; TEXTURE EVOLUTION ; FLOW-STRESS ; HCP METALS ; WIDE-RANGE |
| 收录类别 | SCI |
| 原文出处 | http://dx.doi.org/10.1007/s10409-015-0462-1 |
| 语种 | 英语 |
| WOS记录号 | WOS:000357448500005 |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/55335]  |
| 专题 | 力学研究所_非线性力学国家重点实验室 |
| 通讯作者 | Wang ZQ(王自强) |
| 作者单位 | Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chen, Cen,Tang, Qiheng,Wang, Tzuchiang,et al. A new thermo-elasto-plasticity constitutive theory for polycrystalline metals[J]. ACTA MECHANICA SINICA,2015,31(3):338-348. |
| APA | Chen, Cen,Tang, Qiheng,Wang, Tzuchiang,Wang ZQ,Tang QH,&Chen C.(2015).A new thermo-elasto-plasticity constitutive theory for polycrystalline metals.ACTA MECHANICA SINICA,31(3),338-348. |
| MLA | Chen, Cen,et al."A new thermo-elasto-plasticity constitutive theory for polycrystalline metals".ACTA MECHANICA SINICA 31.3(2015):338-348. |
入库方式： OAI收割
来源：力学研究所
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