True stress control asymmetric cyclic plastic behavior in SA333 C-Mn steel

被引：55
|
作者：
Paul, Surajit Kumar [1 ,2 ]
Sivaprasad, S. [1 ]
Dhar, S. [2 ]
Tarafder, S. [1 ]
机构：
[1] Natl Met Lab, Council Sci & Ind Res, Mat Sci & Technol Div, Jamshedpur 831007, Bihar, India
[2] Jadavpur Univ, Dept Mech Engn, Kolkata 700032, India
来源：
INTERNATIONAL JOURNAL OF PRESSURE VESSELS AND PIPING | 2010年 / 87卷 / 08期
关键词：
Cyclic plasticity; Ratcheting; True stress-strain; Mean stress dependent hardening; MEAN-STRESS; FATIGUE LIFE; STRAIN RESPONSE; DEFORMATION; SIMULATION; COPPER; CREEP;
D O I：
10.1016/j.ijpvp.2010.07.008
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Asymmetric cyclic loading in the plastic region can leads to progressive accumulation of permanent strain. True stress controlled uniaxial asymmetric cycling on SA333 steel is conducted at various combinations of mean stress and stress amplitude in laboratory environment. It is investigated that fatigue life increases in the presence of mean stress. Plastic strain amplitude and hysteresis loop area are found to decrease with increasing mean stress. A huge difference of life and ratcheting strain accumulation is found in engineering and true stress controlled tests. (C) 2010 Elsevier Ltd. All rights reserved.
引用
收藏
页码：440 / 446
页数：7
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