Zobrazeno 1 - 10
of 38
pro vyhledávání: '"Youn Won Park"'
Autor:
Youn-Won Park, Han-Ok Ko, Young Jin Kim, Young Hwan Choi, Jae-Boong Choi, Seung-Won Yeum, Hong-Key Kim
Publikováno v:
International Journal of Pressure Vessels and Piping. 87:33-40
Structural and mechanical components in a nuclear power plant are designed to operate for its entire service life. Recently, a number of nuclear power plants are being operated beyond their design life to produce more electricity without shutting dow
Publikováno v:
International Journal of Pressure Vessels and Piping. 85:606-611
In general, a crack found in a steam generator tube has an elliptical shape, and as soon as it penetrates through the wall, it is assumed to be rectangular for conservatism. However, the leak and crack growth behavior have not been clearly understood
Publikováno v:
Solid State Phenomena. 120:25-30
While the demand on electric power is consistently increasing, public concerns and regulations for the construction of new nuclear power plants are getting restrict, and also operating nuclear power plants are gradually ageing. For this reason, the i
Publikováno v:
Nuclear Engineering and Design. 235:2099-2108
It is commonly required that steam generator tubes wall-thinned in excess of 40% should be plugged. However, the plugging criteria are known to be too conservative for some locations and types of defects and its application is confined to a single cr
Publikováno v:
Nuclear Engineering and Design. 235:1909-1918
Pressure tubes in CANDU reactor are the most important components that contain fuel. The operating experiences show leaks and burst in pressure tubes over the past two decades. The integrity of pressure tubes is, therefore, key concern in CANDU react
Publikováno v:
Journal of Pressure Vessel Technology. 127:123-128
The 40% of wall criterion, which is generally used for the plugging of steam generator tubes, is applied only to a single crack. In the previous study (Moon et al. (2002)), a total number of 9 failure models were introduced to estimate the local fail
Autor:
Young Jin Kim, Youn Won Park, Jong Choon Kim, Jae-Boong Choi, Young Hwan Choi, Shinobu Yoshimura
Publikováno v:
Key Engineering Materials. :2244-2249
Publikováno v:
Key Engineering Materials. :1743-1748
Publikováno v:
Transactions of the Korean Society of Mechanical Engineers A. 28:289-295
Pressure tubes are major component of nuclear reactor, but only selected samples are periodically examined due to numerous numbers of tubes. Current in-service inspection result show there is high probability of flaw existence at uninspected pressure
Publikováno v:
Nuclear Engineering and Design. 226:141-154
A comparative assessment study is performed here for deterministic fracture mechanics analysis of a pressurized thermal shock (PTS). A round robin problem is proposed using the data available in Korea and all organizations interested in the PTS analy