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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2011.8
- 수록면
- 48 - 53 (6page)
이용수
초록· 키워드
오류제보하기
A thermal distortion analysis which takes strains directly as boundary conditions removed barrier of analysis time for the evaluation of welding distortion in a large shell structure like ship block. If the FE analysis time is dramatically reduced, the structure modeling time or the input-value calculating time will become a new issue. On the contrary to this, if the calculation time of analysis input-value is dramatically reduced and its results also are more meaningful, a little longer analysis time could be affirmative. In this study, instead of using inherent strain based on elastic analysis, a thermal strain based on elasto-plastic analysis is used as the boundary condition of weldments in order to evaluate the welding distortion. Here, the thermal strain at the weldment was established by using a stress-strain curve established from the test results. It is possible to automatically recognize the modeling induced-stiffness in the shrinkage direction of welded or heated region. The validity of elasto-plastic thermal distortion analysis was verified through the experiment results with various welding sequence.
목차
Abstract
1. 서론
2. 고유변형률 기반의 탄성해석
3. 열변형률 기반의 탄소성해석
4. 동일 구조물 용접을 통한 검증
5. 선체 블록 적용 사례
6. 결론
참고문헌
참고문헌 (6)
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
Yunsok Ha / 2008 / Development of Welding Distortion Analysis Method Using Residual Strain as Boundary Condition / Materials Science Forum 580:649~654
Yunsok Ha / 2007 / An Improved Inherent Strain Analysis for Plate Bending by Line Heating Considering Phase Transformation of Steel / International Journal of Offshore and Polar Engineering 17(2):139~144
Yun Sok Ha / 2007 / Analysis of Post-Weld Deformation at the Heat-Affected Zone Using External Forces Based on the Inherent Strain / International Journal of Precision Engineering and Manufacturing 8(4):56~62
Changdoo Jang / 2002 / Prediction of Welding Deformations of Stiffened Panels / Journal of Engineering for Maritime Environment 216(M):133~143
Yunsok Ha / 2008 / Development of Welding Distortion Analysis Method Using Residual Strain as Boundary Condition / Materials Science Forum 580:649~654
Yunsok Ha / 2007 / An Improved Inherent Strain Analysis for Plate Bending by Line Heating Considering Phase Transformation of Steel / International Journal of Offshore and Polar Engineering 17(2):139~144
Yun Sok Ha / 2007 / Analysis of Post-Weld Deformation at the Heat-Affected Zone Using External Forces Based on the Inherent Strain / International Journal of Precision Engineering and Manufacturing 8(4):56~62
Changdoo Jang / 2002 / Prediction of Welding Deformations of Stiffened Panels / Journal of Engineering for Maritime Environment 216(M):133~143
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