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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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논문 기본 정보
- 자료유형
- 학술대회자료
- 저자정보
- 발행연도
- 2018.12
- 수록면
- 1,368 - 1,373 (6page)
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초록· 키워드
오류제보하기
In this paper, the residual stresses in APR1400 SG U-tube to the Tube-sheet joint was investigated. A theoretical and FEM methodology was used to assess and compare the residual stress in the U-tube to the Tube-sheet joint. The main objective of the study was to evaluate and compare the contact pressure between U-tube and tube-sheet by theoretical and FEM method. Additionally, the axial strength of the U-tube to tube-sheet joint based on the pull-out force against the contact joint force was evaluated and recommended optimum autofrettage pressure to minimize residual stresses in the transition zone. Theoretical development of deformation and stress in the U-tube to tube-sheet joint was done to assess residual stress in the joint region. A single U-tube hole and tube-sheet with ligament thickness was taken as a single cylinder and plane strain condition was assumed. The FEM simulation was also based on 2D axisymmetric model. An iterative method was used in FEM simulation to find the limit autofrettage pressure at which pull-out force and contact pressure are of the same magnitude.
목차
Abstract
1. Introduction
2. Methodology
3. FEM Analysis
4. Results and Analysis
Discussion and Conclusion
References
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