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http://dx.doi.org/10.3795/KSME-A.2004.28.7.1006

Burst Pressure Evaluation for Through-Wall Cracked Tubes in the Steam Generator  

Kim, Hyun-Su (한국전력기술(주) 재료기술연구그룹)
Kim, Jong-Sung (한국전력기술(주) 재료기술연구그)
Jin, Tae-Eun (한국전력공사 전력연구)
Kim, Hong-Deok (한국전력공사 전력연구)
Chung, Han-Sup (한국전력기술(주) 재료기술연구그룹)
Publication Information
Transactions of the Korean Society of Mechanical Engineers A / v.28, no.7, 2004 , pp. 1006-1013 More about this Journal
Abstract
Operating experience of steam generators shows that the tubes are degraded by stress corrosion cracking, fretting wear and so on. These defected tubes could stay in service if it is proved that the tubes have sufficient structural margin to preclude the risk of tube bursting. This paper provides detailed plastic limit pressure solutions for through-wall cracks in the steam generator tubes. These are developed based on three dimensional(3D) finite element analyses assuming elastic-perfectly plastic material behavior. Both axial and circumferential through-wall cracks in free span and in u-bend regions are considered. The resulting limit pressure solutions are given in a polynomial form, and thus can be simply used in practical integrity assessment of the steam generator tubes.
Keywords
Burst Pressure; Free Span; U-Bend; Bulging Factor; Through-Wall Crack; Flow Stress; Intrados; Extrados;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
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