A new thermo-elasto-plasticity constitutive theory for polycrystalline metals

CORC > 力学研究所 > 中国科学院力学研究所 > 非线性力学国家重点实验室

	A new thermo-elasto-plasticity constitutive theory for polycrystalline metals
	Chen, Cen; Tang, Qiheng; Wang, Tzuchiang; Wang ZQ(王自强); Tang QH(汤奇恒); Chen C(陈岑)
刊名	ACTA MECHANICA SINICA
	2015-06-01
通讯作者邮箱	tcwang@imech.ac.cn
卷号	31 期号:3 页码:338-348
关键词	Thermo-elasto-plasticity constitutive theory Yield stress Hardening behaviors Finite temperature
ISSN号	0567-7718
通讯作者	Wang, TC (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China.
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
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
内容类型	期刊论文
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.