Paper Title:
Formulation of Three-Dimensional Green’s Function and its Application to Fatigue Life Evaluation of Pressurizer
  Abstract

Major nuclear components have been designed by conservative codes to prevent unanticipated fatigue failure. However, more realistic and effective assessment is necessary in proof of continued operation beyond the design life. In the present paper, three-dimensional stress and fatigue evaluation is carried out for pressurizer employing complex full geometry itself instead of conventional discrete subcomponents. For this purpose, temperature and mechanical stress transfer Green’s functions are derived from finite element analyses and applied to critical locations of pressurizer. In accordance with comparison of resulting stresses obtained from the Green’s function and detailed finite element analysis, suitability of the specific Green’s function is investigated. Finally, prototype of fatigue life assessment results is provided along with relevant ongoing activities.

  Info
Periodical
Key Engineering Materials (Volumes 324-325)
Edited by
M.H. Aliabadi, Qingfen Li, Li Li and F.-G. Buchholz
Pages
387-390
DOI
10.4028/www.scientific.net/KEM.324-325.387
Citation
Y. S. Chang, S. B. Choi, J. B. Choi, Y. J. Kim, M. J. Jhung, Y. H. Choi, "Formulation of Three-Dimensional Green’s Function and its Application to Fatigue Life Evaluation of Pressurizer ", Key Engineering Materials, Vols. 324-325, pp. 387-390, 2006
Online since
November 2006
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: J.C. Kim, M.Y. Ahn, Yoon Suk Chang, Jae Boong Choi, Young Jin Kim, Myung Jo Jhung, Young Hwan Choi
Abstract:In general, the fatigue life of major nuclear components has been evaluated based on design codes conservatively. However, sometimes, more...
979
Authors: J.C. Kim, Jae Boong Choi, Yoon Suk Chang, Young Jin Kim, Youn Won Park, Young Hwan Choi
Abstract:While the demand on electric power is consistently increasing, public concerns and regulations for the construction of new nuclear power...
25
Authors: Bin Lin, Meng Lai Zhu, Xiao Gang Liu
Chapter 7: CAD/CAM/CAE
Abstract:Reasonable simplification of finite element modeling of complex mechanical systems can reduce the amount of elements and nodes. The solution...
1186
Authors: Xiao Xia Liu, Li Jun He, Rui Zhou, Shao Lin Ma, Jing Mao
Chapter 14: Modelling, Analysis and Simulation
Abstract:A numerical analysis was performed to investigate the temperature distribution and thermal stress field in monocrystal silicon rod in the...
1425
Authors: Sin Ae Lee, Sung Jun Lee, Sang Hwan Lee, Yoon Suk Chang
Chapter 6: Designing and Research in General Mechanical Engineering and Manufacturing Processes
Abstract:During the heat-up and cool-down processes of nuclear power plants, temperature and pressure histories are to be maintained below the P-T...
896