交通载荷作用下埋地含缺陷玻璃钢管道力学行为研究  

STUDY ON MECHANICAL BEHAVIOR OF BURIED FRP PIPES WITH DEFECTS UNDER TRAFFIC LOAD

作　　者：李振林[1,2] 张笑影 刘彤 于晓 张行[1,2] 董绍华[2,4] LI Zhenlin;ZHANG Xiaoying;LIU Tong;YU Xiao;ZHANG Hang;DONG Shaohua(College of Mechanical and Transportation Engineering,China University of Petroleum(Beijing),Beijing 102200,China;Pipeline Technology and Safety Research Center,China University of Petroleum(Beijing),Beijing 102200,China;Beijing Oil&Gas Transportation Branch,Pipe China Beijing Pipeline Co.,Ltd.,Beijing 100101,China;College of Safety and Ocean Engineering,China University of Petroleum(Beijing),Beijing 102200,China)

机构地区：[1]中国石油大学(北京)机械与储运工程学院,北京102200 [2]中国石油大学(北京)管道技术与安全研究中心,北京102200 [3]国家管网集团北京管道有限公司北京输油气分公司,北京100101 [4]中国石油大学(北京)安全与海洋工程学院,北京102200

出　　处：《力学与实践》2024年第1期64-76,共13页Mechanics in Engineering

基　　金：国家自然科学基金面上项目(51874322,52275141);中石油战略合作科技专项(ZLZX2020-05)资助。

摘　　要：为分析含缺陷玻璃钢管道在交通载荷作用下的力学行为,基于ABAQUS有限元软件建立了含不同形状缺陷管道模型和不同埋深管土模型,研究了不同埋深、不同载荷及缺陷深度对管道不同层中截面沿环向应力分布规律的影响。结果表明,无缺陷管道各层应力分布均匀,含缺陷管道内区域层应力沿管材缠绕方向集中于缺陷对称角处;管道仅含轴向缺陷时管体应力峰值与应力突变幅度最大;缺陷相对深度对管道应力峰值影响较大。In order to analyze the mechanical behavior of fiber reinforced plastics pipeline with defects under traffic load,a pipeline model with different shape defects and a pipe-soil model with different buried depths were established based on ABAQUS finite element software,and the influences of different buried depths,loads and defect depths on the distribution of circumferential stress in different sections of the pipeline were studied.The results show that the stress distribution in each layer of the fault-free pipe is uniform,and the stress in the inner layer of the fault-containing pipe concentrates at the symmetrical angle of the defect along the winding direction of the pipe.The stress peak and stress mutation amplitude of pipe body are the largest when the pipe contains only axial defects.The relative depth of defects has great influence on the stress peak.

关 键 词：玻璃钢管道 复合材料 缺陷 埋地 有限元 

分 类 号：TE832[石油与天然气工程—油气储运工程] O343.4[理学—固体力学]