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Stress Analysis of Curved Portions of Pipe Loops Used in Ships and Offshore Structures
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 Title & Authors
Stress Analysis of Curved Portions of Pipe Loops Used in Ships and Offshore Structures
Park, Chi-Mo; Bae, Byoung-Il;
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 Abstract
Most ships and offshore structures are equipped with a variety of pipes, which inevitably contain curved portions. While it has been a usual practice to conduct bending stress analyses of these curved pipes using the straight-beam theory, this paper adopts two different types of finite elements, straight-beam elements and two-dimensional shell elements, for finite element analyses of a variety of curved pipes. It then compares the analysis results for two different types of elements to determine correction factors, which can be used to transform the bending displacements and bending stresses obtained by straight-beam elements to those obtainable by two-dimensional shell elements. The paper ends with a practical suggestion on how to efficiently use these correction factors to estimate the combined axial and normal stresses in a curved portion of a pipe.
 Keywords
Curved pipe;Bending stress;Bending displacement correction factor;Bending stress correction factor;Finite element analysis;Straight-beam element;2-D shell element;
 Language
Korean
 Cited by
1.
곡선부의 구조 특성을 고려한 선박용 파이프 루프 설계식 개발,박치모;배병일;

한국해양공학회지, 2012. vol.26. 5, pp.87-93 crossref(new window)
2.
CAESAR-II를 이용한 파이프 루프의 구조 거동 특성 연구,박치모;윤성룡;

한국해양공학회지, 2013. vol.27. 2, pp.13-18 crossref(new window)
1.
Study on Structural Behavior of Pipe Loops Using CAESAR-II, Journal of Ocean Engineering and Technology, 2013, 27, 2, 13  crossref(new windwow)
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