A strain rate dependent thermo-elasto-plastic constitutive model for crystalline metallic materials
文献类型：期刊论文
| 作者 | Chen C(陈岑)2 ; Wang ZQ(王自强)1,2
|
| 刊名 | SCIENTIFIC REPORTS
 |
| 出版日期 | 2021-04-23 |
| 卷号 | 11期号:1页码:9 |
| ISSN号 | 2045-2322 |
| DOI | 10.1038/s41598-021-88333-1 |
| 通讯作者 | Chen, Cen(chencen@lnm.imech.ac.cn) |
| 英文摘要 | The strain rate and temperature effects on the deformation behavior of crystalline metal materials have always been a research hotspot. In this paper, a strain rate dependent thermo-elasto-plastic constitutive model was established to investigate the deformation behavior of crystalline metal materials. Firstly, the deformation gradient was re-decomposed into three parts: thermal part, elastic part and plastic part. Then, the thermal strain was introduced into the total strain and the thermo-elastic constitutive equation was established. For the plastic behavior, a new relation between stress and plastic strain was proposed to describe the strain rate and temperature effects on the flow stress and work-hardening. The stress-strain curves were calculated over wide ranges of strain rates (10(-6)-6000 s(-1)) and temperatures (233-730 K) for three kinds of crystalline metal materials with different crystal structure: oxygen free high conductivity copper for face centered cubic metals, Tantalum for body centered cubic metals and Ti-6Al-4V alloy for two phase crystal metals. The comparisons between the calculation and experimental results reveal that the present model describes the deformation behavior of crystalline metal materials well. Also, it is concise and efficient for the practical application. |
| 分类号 | 二类/Q1 |
| WOS关键词 | LOADING RESPONSES ; FCC METALS ; WIDE-RANGE ; DEFORMATION ; TEMPERATURE ; BEHAVIOR ; COPPER ; POLYCRYSTALS ; STRESS ; ALLOY |
| 资助项目 | National Natural Science Foundation of China[11702295] ; National Natural Science Foundation of China[11790292] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB22040503] |
| WOS研究方向 | Science & Technology - Other Topics |
| 语种 | 英语 |
| WOS记录号 | WOS:000644948300006 |
| 资助机构 | National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences |
| 其他责任者 | Chen, Cen |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/86684]  |
| 专题 | 力学研究所_非线性力学国家重点实验室 |
| 作者单位 | 1.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China 2.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 C,Wang ZQ. A strain rate dependent thermo-elasto-plastic constitutive model for crystalline metallic materials[J]. SCIENTIFIC REPORTS,2021,11(1):9. |
| APA | 陈岑,&王自强.(2021).A strain rate dependent thermo-elasto-plastic constitutive model for crystalline metallic materials.SCIENTIFIC REPORTS,11(1),9. |
| MLA | 陈岑,et al."A strain rate dependent thermo-elasto-plastic constitutive model for crystalline metallic materials".SCIENTIFIC REPORTS 11.1(2021):9. |
入库方式： OAI收割
来源：力学研究所
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