ASSESSMENT ON REMAINING STRENGTH OF SPIRAL WELDS OF IN-SERVICE PIPELINES

摘要：

Reliability of a weldment plays an important role in a pipeline safety in oil and gas industry. The existence of defects in a weldment limits the carrying capacity of a pipe. In the present work, the mechanical properties of a spiral welded pipe with an incomplete penetration defect were investigated after the pipe transported oil for more than thirty-five years in North China. FEM numerical simulation was performed to determine the relationship between the depth of the incomplete penetration and the carrying capacity of a welded joint with the incomplete penetration, in order to evaluate the remaining strength of the in-service pipe.

作者: Qingshan Feng Kewei Gao Lijian Zhou Hongsheng Cui Weibin Wang Xiaoming Han Yi Li Xianjun Tan Mao He

作者单位: R & D Center of PetroChina Pipeline Company, Langfang,065000, China;Beijing University of Aeronautic Beijing University of Aeronautics and Astronautics, Beijing, 100083,China R & D Center of PetroChina Pipeline Company, Langfang,065000, China Department of Materials Physics and Chemistry, University of Science and Technology Beijing, Beijing

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）