Paper Title:
Limit Loads for Circumferential Cracks in the Steam Generator Tube under Combined Pressure and Bending Loads
  Abstract

Steam generator in a nuclear power plant is huge heat exchanger that transfers heat from reactor to make steam to drive turbine-generator. Failure of the steam generator tubes can result in the release of fission products to the secondary side. Therefore, accurate integrity assessment of the cracked steam generator tubes is of great importance for maintaining the safety of the nuclear power plant. This paper provides limit loads for circumferential through-wall cracks in steam generator tubes under combined internal pressure and bending loads. Such limit loads are developed on the basis of three dimensional finite element analyses assuming elastic-perfectly plastic material behavior. As for the crack location, both the top of the tubesheet and U-bend regions are considered. The analysis results can be directly applied to the practical integrity assessment of cracked steam generator tubes, because the comparison between experimental data and FE results shows a very good agreement.

  Info
Periodical
Key Engineering Materials (Volumes 345-346)
Edited by
S.W. Nam, Y.W. Chang, S.B. Lee and N.J. Kim
Pages
1357-1360
DOI
10.4028/www.scientific.net/KEM.345-346.1357
Citation
H. S. Kim, T. E. Jin, H. D. Kim, H. S. Chung, Y. S. Chang, Y. J. Kim, "Limit Loads for Circumferential Cracks in the Steam Generator Tube under Combined Pressure and Bending Loads ", Key Engineering Materials, Vols. 345-346, pp. 1357-1360, 2007
Online since
August 2007
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: Yi Nan Lai, Sheng Le Ren, Zeng Lou Li, Jun Tao Gu, Guang Fei Wu
Abstract:The unloading spring-back of tubes during its manufacturing process shows a strong nonlinearity, which greatly influences the precision of...
202
Authors: Qiang Li, Li Feng Fan, Ying Gao, Cong Hui Song, Wen Tao Yang
II. Solid Mechanics
Abstract:Air bending of wide-punch large radius of curvature, as a special bending mode, has been widely applied in the production of large diameter...
207
Authors: M. Mehrara, Mohammad Javad Nategh
Abstract:The bending of plates on rubber pad is a relatively new method used for roll bending of thin plates in recent years. In the present work the...
190
Authors: Jin Feng Geng, Hong Sheng Cai, Xing Pei Liang, Hui Wang, Yu Jie Wang, Zhao Hua Wang
Chapter 5: Computational Mechanics
Abstract:The linear elastic problem for two welded thin-walled steel tubes containing circular arc weld defect subjected to bending load is analyzed...
1711