지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2012.12
- 수록면
- 74 - 79 (6page)
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초록· 키워드
오류제보하기
It depends on the joint configuration, dimensions and constraints of the joint whether the residual stress at the root of single-sided butt weld is tensile or not. Therefore, recommendation is generally made that high R ratio should be used in the fatigue test of welded joint in order to prevent excessively long life caused by compressive residual stress. In this research, the residual stress profile in butt weld joint was obtained through compliance method, using successive extension of a slot and measurement of the variation of strain during the slot extension. The residual stress profile was firstly assumed to be the linear summation of Legendre polynomials up to 9th order excluding 0th and 1st order. Strain variation on the surface was measured while the slot was being extended by cutting to find out the 8 unknown coefficients of each polynomial term. The cut was made by the electric discharge machine. It was concluded that the residual stress near the surface is positive valued, however, it turned into the negative value as soon as it passed through 2 or 3 mm of the depth.
목차
Abstract
1. 서론
2. 이론적 배경
3. 컴플라이언스 행렬 계산 절차
4. 절단실험 및 변형률 계측
5. 잔류응력의 추정
6. 결론
후기
참고문헌
참고문헌 (14)
참고문헌 신청
1. [학술지(정기간행물)] - W. Fricke / 2005 / Comparison of different structural stress approaches for fatigue assessment of welded ship structures / Marine Structures 18 (7) : 473 ~ 488
2. [기타자료] - DnV / 2010 / Classification Note No. 30.7 Fatigue assessment of ship structures / Det Norske Veritas
3. [기타자료] - DnV / 2011 / Recommended practice DNV-RP-C203: Fatigue design of offshore steel structures / Det Norske Veritas
4. [기타자료] - LR / 1998 / Ship Right FDA level 3 procedures manual, technical planning and development department / Lloyd's register of Shipping
5. [기타자료] - GL / 1998 / Rules for classification V-Analysis techniques. Guidelines for fatigue strength analyses of ship structures / Germanischer Llyod, Hamburg
2. [기타자료] - DnV / 2010 / Classification Note No. 30.7 Fatigue assessment of ship structures / Det Norske Veritas
3. [기타자료] - DnV / 2011 / Recommended practice DNV-RP-C203: Fatigue design of offshore steel structures / Det Norske Veritas
4. [기타자료] - LR / 1998 / Ship Right FDA level 3 procedures manual, technical planning and development department / Lloyd's register of Shipping
5. [기타자료] - GL / 1998 / Rules for classification V-Analysis techniques. Guidelines for fatigue strength analyses of ship structures / Germanischer Llyod, Hamburg
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UCI(KEPA) : I410-ECN-0101-2014-581-000564088