A new thermo-elasto-plasticity constitutive equation for crystals

被引：1
|
作者：
Chen Cen [1 ]
Tang QiHeng [1 ]
Wang TzuChiang [1 ]
机构：
[1] Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China
来源：
SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY | 2015年 / 58卷 / 05期
基金：
中国国家自然科学基金;
关键词：
thermo-elasto-plasticity theory; constitutive equation; interatomic potential; critical resolved shear stress; hardening; POSITIVE TEMPERATURE-DEPENDENCE; SINGLE-CRYSTALS; STRAIN-RATES; FREE-ENERGY; WIDE-RANGE; LOADING RESPONSES; FLOW-STRESS; MODEL; DEFORMATION; COPPER;
D O I：
10.1007/s11433-015-5642-2
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Based on the crystal plasticity theory and interatomic potential, in this paper a new thermo-elasto-plasticity constitutive model is proposed to study the behavior of metal crystals at finite temperature. By applying the present constitutive model, the stress-strain curves under uniaxial tension at different temperatures are calculated for the typical crystal Al, and the calculated results are compared with the experimental results. From the comparisons, it can be seen that the present theory has the capability to describe the thermo-elasto-plastic behavior of metal crystals at finite temperature through a concise and explicit calculation process.
引用
收藏
页码：1 / 10
页数：10
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