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http://dx.doi.org/10.3795/KSME-A.2006.30.8.1008

Closed-Form Plastic Collapse Loads of Pipe Bends Under Combined Pressure and In-Plane Bending  

Oh Chang-Sik (고려대학교 대학원 기계공학과)
Kim Yun-Jae (고려대학교 기계공학과)
Publication Information
Transactions of the Korean Society of Mechanical Engineers A / v.30, no.8, 2006 , pp. 1008-1015 More about this Journal
Abstract
Based on three-dimensional (3-D) FE limit analyses, this paper provides plastic limit, collapse and instability load solutions for pipe bends under combined pressure and in-plane bending. The plastic limit loads are determined from FE limit analyses based on elastic-perfectly plastic materials using the small geometry change option, and the FE limit analyses using the large geometry change option provide plastic collapse loads (using the twice-elastic-slope method) and instability loads. For the bending mode, both closing bending and opening bending are considered, and a wide range of parameters related to the bend geometry is considered. Based on the FE results, closed-form approximations of plastic limit and collapse load solutions for pipe bends under combined pressure and bending are proposed.
Keywords
Combined Pressure and In-plane Bending; Collapse Load; Finite Element Limit Analysis; Instability Load; Large Geometry Change; Limit Load; Small Geometry Change; Pipe Bend;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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