Transactions of the Korean Society of Pressure Vessels and Piping (한국압력기기공학회 논문집)
- Volume 6 Issue 2
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- Pages.1-8
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- 2010
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- 1738-8333(pISSN)
Burst Behavior of Wear Scar of Steam Generators Tubes
증기발생기 전열관 마모 파열 거동
Abstract
Nuclear steam generator tubes have experienced wear degradation at tube support structure. Morphology of wear scar was analyzed by using eddy current signal. A burst test facility for steam generator tubes was established and tubes with 3 types of defects were tested. The burst test results show that the depth of wear scar is the main factor influencing the burst pressure of tubes, meanwhile, both the longitudinal length and the angle also have effect on the burst pressure. Based on test results, the burst pressure equation for wear degradation was proposed.
Keywords