An Innovative Yield Criterion Considering Strain Rates Based on Von Mises Stress

被引：6
|
作者：
Yu, Jingwei [1 ,2 ]
Fei, Qingguo [1 ,2 ]
Zhang, Peiwei [1 ,3 ]
Li, Yanbin [1 ,2 ]
Zhang, Dahai [1 ,2 ]
Guo, Fei [1 ,3 ]
机构：
[1] Southeast Univ, Inst Aerosp Machinery & Dynam, Nanjing 211189, Jiangsu, Peoples R China
[2] Southeast Univ, Sch Mech Engn, Nanjing 211189, Jiangsu, Peoples R China
[3] Southeast Univ, Dept Engn Mech, Nanjing 211189, Jiangsu, Peoples R China
来源：
JOURNAL OF PRESSURE VESSEL TECHNOLOGY-TRANSACTIONS OF THE ASME | 2020年 / 142卷 / 01期
基金：
中国国家自然科学基金;
关键词：
strain rate; yield criterion; dynamic strength; Von Mises stress; strain energy density; GLASS/EPOXY COMPOSITES; BEHAVIOR;
D O I：
10.1115/1.4044908
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
An innovative yield criterion based on von Mises stress is proposed to represent the strain rate-dependent behavior under dynamic load. Considering the strain rate in the constitutive model, the distortional strain energy density is derived and the yield criterion is established. A plot of yield strength for a range of strain rate reveals that despite the differences in material properties and test methods, the yield strength rise can be represented by a unified criterion. The overall yield behavior of the material under dynamic load can be explained by introducing the strain rate into the constitutive model and threshold distortional strain energy density. This criterion is in a simple form that may be widely applied.
引用
收藏
页数：6
相关论文
共 50 条
12345