文献类型：会议论文

中文题名：THE COLLAPSE LOAD OF CIRCULAR ARCH PIPE WITH 3D DEFECTS

作者：Huimin Zhang;Jiazhen Pan

机构：[1]East China University of Science and Technology, Shanghai 200237, China.;[2]Shanghai Institute of Techn;

会议论文集：第九届工程结构完整性国际会议（The Ninth International Conference

会议日期：20071015

会议地点：北京

主办单位：北京航空航天大学

语种：英文

摘要：The paper examines the nonlinear elastic-plastic response of internally pressurized circular arch pipeline. The pipe has different shape, direction and size of 3D defects. The collapse load is calculated by nonlinear finite element method. The paper also presents a parametric study, aimed at investigating the effects of defect depth-to-thickness, defect length-to-width and radius of curvature. The collapse loads of circular arch pipe are compared with that of straight pipe. The numerical results and failure mode are validated by burst tests. The result shows that the axial defects have more influence on the collapse load.