文献类型：会议论文

英文题名：Numerical Study of Defect Free Elbows Subjected to In-Plane Bending Moment

作者：Wang, Chen[1];Wang, YinPei[1];Li, PeiNing[1];Chen, Jin[1];Sun, XiaoMing[1]

机构：[1]E China Univ Sci & Technol, Sch Mech Engn, Minist Educ, Key Lab Safety Sci Pressurized Syst, Shanghai 200237, Peoples R China

会议论文集：2nd International Conference on Manufacturing Science and Engineering

会议日期：APR 09-11, 2011

会议地点：Guilin, PEOPLES R CHINA

语种：英文

外文关键词：Elbow; Limit Load; FE Analyses; In-Plane Opening/ Closing Bending Moment

摘要：Elbow is a type of components widely used in a piping system, and so it is very important to know the plastic carrying capacity of elbow. In this study, the elastic-plastic behavior of elbows with various ratios of t/r(m) and relative bending radius R/r(m) were investigated in detail by using of three-dimensional (3D) non-linear finite element (FE) analyses, assuming elastic-perfectly-plastic material behaviour and taking geometric nonlinearity into account. The analyses indicated that elbow exhibited different behavior obviously at the elastic-plastic states subjected to In-Plane opening bending moment and closing bending moment. The closed form equations of elbow involving effect of tangent pipes were established.