Browse > Article
http://dx.doi.org/10.5516/NET.2009.41.3.347

STRUCTURAL INTEGRITY EVALUATION OF NUCLEAR FUEL WITH REDUCED WELDING CONDITIONS  

Park, Nam-Gyu (R&D Center, Korea Nuclear Fuel)
Park, Joon-Kyoo (R&D Center, Korea Nuclear Fuel)
Suh, Jung-Min (R&D Center, Korea Nuclear Fuel)
Kim, Kyu-Tae (R&D Center, Korea Nuclear Fuel)
Jeon, Kyeong-Lak (R&D Center, Korea Nuclear Fuel)
Publication Information
Nuclear Engineering and Technology / v.41, no.3, 2009 , pp. 347-354 More about this Journal
Abstract
Welding is required for a connection between two different components in the nuclear fuel of a pressurized water reactor. This work relies on a mechanical experiment and analytic results to investigate the structural integrity of nuclear fuel in a situation where some components are not welded to each other. A series of lateral vibration tests are performed in a test facility, and the test structures are examined in terms of dynamic behavior. In the tests, the displacement signal at every grid structure that sustains fuel rods is measured and processed to identify the dynamic properties. The fluid-elastic stability of the structure is also analyzed to evaluate susceptibility to a cross flow with an assumed conservative cross flow distribution. The test and analysis results confirm that the structural integrity can be maintained even in the absence of some welding connections.
Keywords
Nuclear Fuel; Welding; Structural Integrity; Dynamic Behavior; Fluid-elastic Stability;
Citations & Related Records

Times Cited By Web Of Science : 0  (Related Records In Web of Science)
Times Cited By SCOPUS : 0
연도 인용수 순위
  • Reference
1 W. Heylen, S. Lammens, P. Sas, “Modal Analysis Theory and Testing”, Katholieke Universiteit Leuven, 1997
2 M.K. Au-Yang, “Flow-Induced Vibration of Power and Process Plant Components”, Professional Engineering Publishing, 2001
3 A.F.M. Ghiselli, M.A. Sacchi, R.O. Zampach, A.J. Pastorini, P.M. Kulichevsky, J.M. Fiori, “The Use of Low Pressure Test Facility for the Carem Reactor Fuel Element Design Verification”, Proceedings of IAEA Technical Meeting on Fuel Assembly Structural Behavior, pp.51-68, 2004
4 ASME Boiler & Pressure Vessel Code Division-1 Appendices, ASME, 1995