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http://dx.doi.org/10.7842/kigas.2011.15.4.039

Numerical Analysis on the Stress and Deformation Behavior Characteristics of Flexible Joint for a Gas Pipe  

Kim, Chung-Kyun (Research Center for Tribology, Mechatronics and Energy Technology Center, Hongik University)
Kim, Kyung-Seob (Research Center for Tribology, Mechatronics and Energy Technology Center,Hongik University)
Publication Information
Journal of the Korean Institute of Gas / v.15, no.4, 2011 , pp. 39-43 More about this Journal
Abstract
In this study, the stress and deformation behavior characteristics of a flexible joint for a gas pipe have been analyzed by a finite element method. These characteristic results may investigate the strength safety analysis of a flexible joint, which is composed by a spiral corrugation pipe or a rectangular corrugation model and a plane pipe. The FEM computed results show that an optimized spiral corrugation pipe model is a inclined angle of $4.7^{\circ}$ and a corrugation height of 1.5mm. And also, a rectangular corrugation pipe model of $90^{\circ}$ is recommended in strength safety rather than a spiral corrugation pipe with an inclined angle. Thus, a corrugated pipe for an increased strength safety is to recommend a reduced pitch and curvature radius of an inclined corrugation.
Keywords
flexible joint; gas pipe; corrugation; stress; strain; deformation behavior;
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