Online Fatigue-Monitoring Models with Consideration of Temperature Dependent Properties and Varying Heat Transfer Coefficients
Joint Authors
Zhou, Yan
Xiong, Yangheng
Zhang, HengLiang
Xie, Danmei
Guo, Rui
Liu, Shi
Yu, Yanzhi
Source
Science and Technology of Nuclear Installations
Issue
Vol. 2013, Issue 2013 (31 Dec. 2013), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2013-12-15
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Engineering Sciences and Information Technology
Abstract EN
Thermal stress failure caused by alternating operational loads is the one of important damage mechanisms in the nuclear power plants.
To evaluate the thermal stress responses, the Green’s function approach has been generally used.
In this paper, a method to consider varying heat transfer coefficients when using the Green’s function method is proposed by using artificial parameter method and superposition principle.
Time dependent heat transfer coefficient has been treated by using a modified fluid temperature and a constant heat transfer coefficient.
Three-dimensional temperature and stress analyses reflecting entire geometry and heat transfer properties are required to obtain accurate results.
An efficient and accurate method is confirmed by comparing its result with corresponding 3D finite element analysis results for a reactor pressure vessel (RPV).
From the results, it is found that the temperature dependent material properties and varying heat transfer coefficients can significantly affect the peak stresses and the proposed method can reduce computational efforts with satisfactory accuracy.
American Psychological Association (APA)
Zhang, HengLiang& Liu, Shi& Xie, Danmei& Xiong, Yangheng& Yu, Yanzhi& Zhou, Yan…[et al.]. 2013. Online Fatigue-Monitoring Models with Consideration of Temperature Dependent Properties and Varying Heat Transfer Coefficients. Science and Technology of Nuclear Installations،Vol. 2013, no. 2013, pp.1-9.
https://search.emarefa.net/detail/BIM-496861
Modern Language Association (MLA)
Zhang, HengLiang…[et al.]. Online Fatigue-Monitoring Models with Consideration of Temperature Dependent Properties and Varying Heat Transfer Coefficients. Science and Technology of Nuclear Installations No. 2013 (2013), pp.1-9.
https://search.emarefa.net/detail/BIM-496861
American Medical Association (AMA)
Zhang, HengLiang& Liu, Shi& Xie, Danmei& Xiong, Yangheng& Yu, Yanzhi& Zhou, Yan…[et al.]. Online Fatigue-Monitoring Models with Consideration of Temperature Dependent Properties and Varying Heat Transfer Coefficients. Science and Technology of Nuclear Installations. 2013. Vol. 2013, no. 2013, pp.1-9.
https://search.emarefa.net/detail/BIM-496861
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-496861