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그린함수를 이용한 가동중원전의 피로손상 평가프로그램 개발
김익중(Ik-Joong Kim),이정민(Jung-Min Lee),양상모(Sang-Mo Yang),김영진(Young-Jin Kim),최재붕(Jae-Boong Choi),김홍기(Hong-Gi Kim),최영환(Young-Hwan Choi) 대한기계학회 2010 대한기계학회 춘추학술대회 Vol.2010 No.11
A couple of years ago, in Korea, Periodic Safety Review (PSR) was adopted in order to assure the continued safe operation of nuclear power plants. The PSR considering various aging effects is being performed every ten-years in general and, for this, complicated procedures are required such as inspection, structure analysis, failure assessment and combination of them. A web-based regulatory aging monitor Program is proposed in this paper, which manages key operating data efficiently and assists effective evaluation of major components of nuclear power plant. By using the proposed program, experts can measure real-time data and to detect damages of major components of nuclear power plant.
김익중(Ik-Joong Kim),장윤찬(Yun-Chan Jang),김철만(Chul-Man Kim),허용화(Yong-Hwa Heo),선종오(Jong-Oh Sun),최신범(Shin-Beom Choi),정종하(Jong-Ha Jeong) 대한기계학회 2022 대한기계학회 춘추학술대회 Vol.2022 No.11
The stress triaxiality and lode angle parameters are the main factors that determine the failure criterion for ductile fracture. In this paper, a study were conducted on the relationship between the stress triaxiality ratio at failure point and the lode angle parameter for calculating the three-dimensional facture locus of API 5L X65 line-pipe steel. As a result, a non-standardized plate-type specimen was proposed.
김익중(Ik-Joong Kim),장윤찬(Yun-Chan Jang),유정수(Jung-Su Yoo),백종현(Jong-Hyun Baek),김철만(Chul-Man Kim),김영표(Young-Pyo Kim) 대한기계학회 2021 대한기계학회 춘추학술대회 Vol.2021 No.11
Recently, strain-based design and assessment(SBDA) method has been actively adopted to structural integrity of buried gas pipelines under ground movements. Large plastic deformation occus in pipe due to bending load, it shall be evaluated to simultaneously considering the possibility of tensile rupture and compression buckling. In this paper, various predictive formulas for calculating the allowable strain limit for gas pipelines and domestic applicability was reviewed.