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논문 기본 정보

자료유형
학술저널
저자정보
Kyungcho Kim (Korea Institute of Nuclear Safety) Sungsik Kang (Korea Institute of Nuclear Safety) Hosang Shin (Korea Institute of Nuclear Safety) Kukab Chung (Korea Institute of Nuclear Safety) Myungho Song (Korea Institute of Nuclear Safety) Haedong Chung (Korea Institute of Nuclear Safety)
저널정보
한국비파괴검사학회 비파괴검사학회지 비파괴검사학회지 제29권 제3호
발행연도
2009.6
수록면
248 - 255 (8page)

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초록· 키워드

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After several damages by PWSCC were found in the world, USNRC and PNNL(Pacific Northwest National Laboratory) started the research on PWSCC under the project name of PINC. The aim of the project was 1) to fabricate representative NDE mock-ups with flaws to simulate PWSCCs, 2) to identify and quantitatively assess NDE methods for accurately detecting, sizing and characterizing PWSCCs, 3) to document the range of locations and morphologies of PWSCCs and 4) to incorporate results with other results of ongoing PWSCC research programs, as appropriate. Korea nuclear industries have also been participating in the project. Thermally and mechanically cracked-four mockups were prepared and phased array and manual ultrasonic testing(UT) techniques were applied. The results and lessons learned from the preliminary RRT are summarized as follows: 1) Korea RRT teams performed the RRT successfully. 2) Crack detection probability of the participating organizations was an average 87%, 80% and 80% respectively. 3) RMS error of the crack sizing showed comparatively good results. 4) The lessons learned may be helpful to perform the PINC RRT and PSI/ISI in Korea in the future.

목차

Abstract
1. Introduction
2. PINC Project and Participation of Korean Organizations
3. Preliminary RRT Teams and Mockups @
4. RRT Results and Discussion
5. Lessons Learned
6. Conclusions
References

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UCI(KEPA) : I410-ECN-0101-2014-500-003270073