Proceedings of the KSME Conference (대한기계학회:학술대회논문집)
- 2007.05a
- /
- Pages.1836-1841
- /
- 2007
Plastic loads of pipe bends under combined pressure and out-of-plane bending
면외 굽힘하중과 내압의 복합하중을 받는 곡관의 소성하중
- Published : 2007.05.30
Abstract
Based on three-dimensional (3-D) FE limit analyses, this paper provides plastic limit and TES(Twice-Elastic-Slope) loads for pipe bends under combined pressure and out-of-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 TES plastic loads. A wide range of parameters related to the bend geometry is considered. Based on the FE results, closed-form approximations of plastic limit and TES plastic load solutions for pipe bends under out-of-plane bending are proposed.