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http://dx.doi.org/10.20466/KPVP.2019.15.2.050

A Study on the Deformation Characteristics of Gas Pipeline under Internal Pressure and In-Plane Bending Load  

Jang, Yun-Chan (한국가스공사 가스연구원)
Kim, Ik-Joong (한국가스공사 가스연구원)
Kim, Cheol-Man (한국가스공사 가스연구원)
Jeon, Bub-Gyu (부산대학교 지진방재연구센터)
Chang, Sung-Jin (부산대학교 지진방재연구센터)
Kim, Young-Pyo (한국가스공사 가스연구원)
Publication Information
Transactions of the Korean Society of Pressure Vessels and Piping / v.15, no.2, 2019 , pp. 50-57 More about this Journal
Abstract
This paper investigates deformation characteristics of gas pipeline using the in-plane bending experiment and finite element analysis of a pipe bend. The effect of the bending angle and internal pressure on the deformation characteristics is analyzed. The pipe bend used in this study is API 5L X65 (out diameter: 20 inch) material with the thickness of 11.9 mm. The maximum load, displacement at maximum load, angle and local strain of 90° pipe bend are obtained from the in-plane bending experiment. Comparison between FE results and experimental data shows overall good agreements. In addition, the deformation characteristics of 22.5° and 45° pipe bend are calculated using the finite element analysis. As a result, the effect of the bend angle on the deformation characteristics is discussed.
Keywords
Gas Pipeline; In-Plane Bending Load; Deformation Characteristic; FE Analysis;
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