THE COLLAPSE LOAD OF CIRCULAR ARCH PIPE WITH 3D DEFECTS

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.

作者: Huimin Zhang Jiazhen Pan

作者单位: East China University of Science and Technology, Shanghai 200237, China.;Shanghai Institute of Techn East China University of Science and Technology, Shanghai 200237, China.

会议类型: 国际会议

会议名称: 第九届工程结构完整性国际会议(The Ninth International Conference on Engineering Structural Integrity Assessment)

会议地点: 北京

会议语种:英文

在线出版日期: 2007-10-15（万方平台首次上网日期，不代表论文的发表时间）