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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2021.4
- 수록면
- 144 - 149 (6page)
이용수
초록· 키워드
오류제보하기
In recent years, the deep and ultra-deep seas are recognized as the last remaining regions on the planet where oil and natural gas resources are discovered and produced. In order to develop such natural resources in an environmentally safe and cost-effective method, various engineering systems and technologies are being developed. In keeping with this direction of development, there is significant worldwide interest among major offshore structural and system operators in examining the possibility of using high-strength steel for long-distance gas transmission pipelines and risers. In particular, riser pipes using high manganese steel are often made by longitudinal butt welding, but studies related to the prediction of residual stresses for this are insufficient.
In general, it is known that in a cylindrical structure such as steel catenary risers (Hereafter, ‘SCRs’), residual stress in the through-thickness direction can be decomposed into a membrane component and a bending component. In this paper, a parametric study through nonlinear finite element analysis was performed to predict the residual stress for each direction of a longitudinal butt-welded riser by considering the main parameters (r/t) of the pipe that can affect the actual residual stress. A new predicting equation for estimating the residual stress profile was proposed using the results of a number of parametric precision numerical analysis derived through this process.
In general, it is known that in a cylindrical structure such as steel catenary risers (Hereafter, ‘SCRs’), residual stress in the through-thickness direction can be decomposed into a membrane component and a bending component. In this paper, a parametric study through nonlinear finite element analysis was performed to predict the residual stress for each direction of a longitudinal butt-welded riser by considering the main parameters (r/t) of the pipe that can affect the actual residual stress. A new predicting equation for estimating the residual stress profile was proposed using the results of a number of parametric precision numerical analysis derived through this process.
목차
Abstract
1. 서론
2. 파라메트릭 연구
3. 결론
References
참고문헌 (8)
참고문헌 신청
Pingsha Dong / 2014 / On residual stress prescriptions for fitness for service assessment of pipe girth welds / International Journal of Pressure Vessels and Piping 123-124:19~29
Shaopin Song / 2015 / A full-field residual stress estimation scheme for fitness-for-service assessment of pipe girth welds: Part I – Identification of key parameters / International Journal of Pressure Vessels and Piping 126-127:58~70
Shaopin Song / 2015 / A full-field residual stress estimation scheme for fitness-for-service assessment of pipe girth welds: Part II – A shell theory based implementation / International Journal of Pressure Vessels and Piping 128:8~17
Shaopin Song / 2016 / A framework for estimating residual stress profile in seam-welded pipe and vessel components part I: Weld region / International Journal of Pressure Vessels and Piping 146:74~86
Shaopin Song / 2016 / A framework for estimating residual stress profile in seam welded pipe and vessel components Part II: Outside of weld region / International Journal of Pressure Vessels and Piping 146:65~73
Shaopin Song / 2015 / A full-field residual stress estimation scheme for fitness-for-service assessment of pipe girth welds: Part I – Identification of key parameters / International Journal of Pressure Vessels and Piping 126-127:58~70
Shaopin Song / 2015 / A full-field residual stress estimation scheme for fitness-for-service assessment of pipe girth welds: Part II – A shell theory based implementation / International Journal of Pressure Vessels and Piping 128:8~17
Shaopin Song / 2016 / A framework for estimating residual stress profile in seam-welded pipe and vessel components part I: Weld region / International Journal of Pressure Vessels and Piping 146:74~86
Shaopin Song / 2016 / A framework for estimating residual stress profile in seam welded pipe and vessel components Part II: Outside of weld region / International Journal of Pressure Vessels and Piping 146:65~73
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