Evaluation of thermal fatigue life for SSRF high-heat-load components

被引：0
|
作者：
University of Science and technology of China, Department of Modern Mechanics, Hefei [1 ]
230026, China
不详 [2 ]
Jiangxi
333000, China
机构：
来源：
Hedongli Gongcheng | / 5卷 / 199-203期
关键词：
Thermal fatigue - Thermal load - Finite element method - Design - Synchrotrons - Fatigue damage - Surface roughness;
D O I：
10.13832/j.jnpe.2015.05.0199
中图分类号：
学科分类号：
摘要：
This paper focuses on a typical high heat load component at the front end of Shanghai Synchrotron Radiation Facility (SSRF). The temperature and elastoplastic stress-strain are simulated with the finite element method. The modified Von Mises equivalent strain model, combining with Miner linear cumulative damage theory, is used to predict the fatigue lives. Meanwhile, taking into account the effects of surface roughness and hold time, we ultimately provide a thermal fatigue life evaluation method for the high heat load components. The finite life design method is accordingly proposed, which aims to improve the current conservative design method and to promote the overall performance of the facility. © 2015, Editorial Office of Nuclear Power Engineering. All right reserved.
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