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Finite Element Analysis on Polyethylene Gas Pipes under External Loadings  

Kil, Seoog-Hee (Dept. of Gas Safety R&D Center, Korea Gas Safety Corporation)
Park, Kyo-Shik (Dept. of Gas Safety R&D Center, Korea Gas Safety Corporation)
Kim, Ji-Yoon (Dept. of Gas Safety R&D Center, Korea Gas Safety Corporation)
Publication Information
Journal of Energy Engineering / v.17, no.4, 2008 , pp. 204-211 More about this Journal
Abstract
Polyethylene(PE) pipes have been widely used as they are easy to construct and suitable for economical efficient when they are compared with metal pipelines. This paper studied the effect of various external loadings on stress and deflection of the buried PE pipes using Finite Element Method(FEM). For this purpose, stresses of buried PE pipes were calculated according to the loading condition such as pipe types(pipe diameter $50{\sim}400mm$), burial depths($0.6{\sim}1.2m$) and internal pressures($0.4{\sim}4bar$). As a result, it was founded the effect and relation with each of loading conditions under the buried condition.
Keywords
Polyethylene(PE); Earth load; Live Load; Internal pressure; Finite Element Analysis;
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