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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2012.12
- 수록면
- 120 - 125 (6page)
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초록· 키워드
오류제보하기
Because ships and offshore structures have very large dimensions and complicated shapes, it is difficult to determine the deformation or internal stress in the structure by simple lab tests. Thus, a rigorous analysis by using the computer simulation technology is essential for obtaining their distortions by considering the entire production process characteristics. The rapid development of computer technology made it possible to analyze the heat transfer phenomena, deformation and phase transformation in the welded joint. For large shell structures, shell elements modeling contributed primarily to this development. But if a welding is done by multi-pass, shell elements whose thickness are unchangeable can hard to describe the local situation. Recently, it was researched how to introduce the imaginary temperature for V grooved multi-layer butt welding in strain-boundary method (a kind of shrinkage methodologies). In the present study, we formulated the imaginary temperature for the double bevel and double V groove by considering the thickness change of each pass through the bead and the thickness directions simultaneously and also demonstrated the feasibility of the formula by applying it to the thermal distortion analysis of the erection process of crane pedestal.
목차
Abstract
1. 서론
2. 다층 용접 K개선 가상온도 정식화를 위한 절차와 가정
3. 상면 용접부에 대한 가상온도 정식화
4. 하면 용접부에 대한 가상온도 정식화
5. 다층용접 X개선으로의 확장
6. 사례 연구
7. 결론
참고문헌
참고문헌 (8)
참고문헌 신청
서승일 / 199702 / A study on the prediction of deformations of plates due to line heating using a simplified thermal elasto-plastic analysis / Journal of Ship Production 13(1):22~27
Mohd Shahar Sulaiman / 2011 / Simulation and experimental study on distortion of butt and T-joints using WELD PLANNER / Journal of Mechanical Science and Technology 25(10):2641~2646
Yunsok Ha / 2008 / Development of Welding Distortion Analysis Method Using Residual Strain as Boundary Condition / Materials Science Forum 580(582):649~654
Sang Beom Shin / 2011 / Control Technology for Excessive Welding Distortion of the Deck House during Manufacturing Process / Metals and Materials International 17(1):123~130
Koichi Masubuchi / 1980 / Analysis of Welded Structures / Pergamon Press :245
Mohd Shahar Sulaiman / 2011 / Simulation and experimental study on distortion of butt and T-joints using WELD PLANNER / Journal of Mechanical Science and Technology 25(10):2641~2646
Yunsok Ha / 2008 / Development of Welding Distortion Analysis Method Using Residual Strain as Boundary Condition / Materials Science Forum 580(582):649~654
Sang Beom Shin / 2011 / Control Technology for Excessive Welding Distortion of the Deck House during Manufacturing Process / Metals and Materials International 17(1):123~130
Koichi Masubuchi / 1980 / Analysis of Welded Structures / Pergamon Press :245
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