Effect of Cyclic Strain on Mechanical Behavior of Structural Steels in Room and Low Temperatures

被引：2
|
作者：
Hamdoon, Muhsin [1 ]
Das, Sreekanta [2 ]
Zamani, Nader [1 ]
机构：
[1] Univ Windsor, Dept Mech Auto & Mat Engn, 401 Sunset Ave, Windsor, ON N9B 3P4, Canada
[2] Univ Windsor, Dept Civil & Environm Engn, Windsor, ON N9B 3P4, Canada
来源：
MATERIALS PERFORMANCE AND CHARACTERIZATION | 2012年 / 1卷 / 01期
基金：
加拿大自然科学与工程研究理事会;
关键词：
mechanical behavior; nonlinearity; tensile properties; strain hardening; cyclic softening;
D O I：
10.1520/MPC20120022
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The mechanical behavior of fatigue damaged material is expected to differ from that of damage free ones. In this study, three different load histories were applied on round specimens made of AISI 1022 HR and CSA G40.21 350WT steels. Axial loading was applied using a strain controlled mode to determine the effect of cyclic strain on the linear-nonlinear behavior of steels. The experimental results show a significant effect of strain cycles on the linear-nonlinear behavior of steels used in this study. The hysteresis indicates stress relaxation for all loading histories. However, rates of stress relaxation were different depending on the applied mean strain value. Furthermore, specimens tested at low temperatures exhibited different linear-nonlinear behavior than those tested at room temperature.
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页码：1 / 17
页数：17
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