Temperature evolution during low-cycle fatigue of ULTIMET® alloy:: experiment and modeling

被引：42
|
作者：
Jiang, L
Wang, H
Liaw, PK
Brooks, CR
Klarstrom, DL
机构：
[1] Univ Tennessee, Dept Mat Sci & Engn, Knoxville, TN 37996 USA
[2] Oak Ridge Natl Lab, Div Met & Ceram, Oak Ridge, TN 37831 USA
[3] Haynes Int Inc, Kokomo, IN 46904 USA
来源：
MECHANICS OF MATERIALS | 2004年 / 36卷 / 1-2期
关键词：
D O I：
10.1016/S0167-6636(03)00032-2
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The temperature variations of a cobalt-based ULTIMET alloy subjected to low-cycle fatigue were characterized by a high-speed, high-resolution infrared thermography. The change of temperature during fatigue, which was due to the thermal-elastic plastic effect, was utilized to reveal the accumulation of fatigue damage. A constitutive model was developed for predicting the thermal and mechanical responses of ULTIMET alloy subjected to cyclic deformation. The model was constructed in light of internal state variables, which were developed to characterize the inelastic strain of the material during cyclic loading. The predicted stress-strain and temperature responses were found to be in good agreement with the experimental results. (C) 2003 Elsevier Ltd. All rights reserved.
引用
收藏
页码：73 / 84
页数：12
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