Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Han-Ok Ko"'
Publikováno v:
Nuclear Engineering and Technology, Vol 46, Iss 1, Pp 101-108 (2014)
About 40% of reactors in the world are being operated beyond design life or are approaching the end of their life cycle. During long-term operation, various degradation mechanisms occur. Fatigue caused by alternating operational stresses in terms of
Externí odkaz:
https://doaj.org/article/1a2f36793e2b465fa988ddca10980a33
Publikováno v:
Applied Mechanics and Materials. 252:32-35
Fatigue damage caused by alternating operational stresses in terms of temperature or pressure change is the one of important damage mechanisms in the nuclear power plants (NPPs). Although components important to safety were designed to withstand the
Autor:
Han-Ok Ko, Jae-Uk Jeong, Jae-Boong Choi, Bong-Sang Lee, Min-Chul Kim, Yoon-Suk Chang, Shin-Beom Choi
Publikováno v:
Transactions of the Korean Society of Mechanical Engineers A. 36:513-521
The aim of this study was to determine the brittle fracture behavior of reactor pressure vessel steel by considering the temperature dependence of a damage model. A multi-island genetic algorithm was linked to a Weibull stress model, which is the mod
Probabilistic integrity assessment of pressure tubes in an operating pressurized heavy water reactor
Publikováno v:
International Journal of Pressure Vessels and Piping. :28-36
Even though pressure tubes are major components of a pressurized heavy water reactor (PHWR), only small proportions of pressure tubes are sampled for inspection due to limited inspection time and costs. Since the inspection scope and integrity evalua
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
Autor:
Young Jae Park, Young Jin Kim, Jae-Boong Choi, Chungkil Kim, Yoon Suk Chang, Han Ok Ko, Joon-Seong Lee, Byung Sun Kim
Publikováno v:
Key Engineering Materials. :12-15
A seamless analysis of IT-related products, such as cellular phone, LCD monitor and note PC etc., which are thin and complex geometry is one of great concerns in product design. However, there is a considerable amount of gap between the industrial ap
Publikováno v:
Journal of Mechanical Science and Technology. 19:2007-2015
A large-scale analysis to evaluate complex material and structural behaviors is one of interesting topic in diverse engineering and scientific fields. Also, the utilization of massively parallel processors has been a recent trend of high performance
Publikováno v:
Volume 5: High Pressure Technology; Nondestructive Evaluation Division; Student Paper Competition.
During the last couple of decades, several design guidelines and codes relating to major nuclear components have been introduced and revised for risk-based design and evaluation. It is an important process to determine statistical parameters in pract
Publikováno v:
Nuclear Engineering and Technology, Vol 46, Iss 1, Pp 101-108 (2014)
About 40% of reactors in the world are being operated beyond design life or are approaching the end of their life cycle. During long-term operation, various degradation mechanisms occur. Fatigue caused by alternating operational stresses in terms of