Experimental,Numerical,and Analytical Studies on the Bending of Mechanically Lined Pipe

作     者：WEI Wen-bin YUAN Lin ZHOU Jia-sheng LIU Zheng WEI Wen-bin;YUAN Lin;ZHOU Jia-sheng;LIU Zheng

作者机构：State Key Laboratory of Hydraulic Engineering Simulation and SafetyTianjin UniversityTianjin 300072China School of Civil EngineeringTianjin UniversityTianjin 300072China School of Mechanical EngineeringTianjin UniversityTianjin 300072China 

出 版 物：《China Ocean Engineering》 (中国海洋工程（英文版）)

年 卷 期：2024年第38卷第2期

页      面：221-232页

核心收录：

学科分类：0820[工学-石油与天然气工程] 08[工学] 0815[工学-水利工程] 0824[工学-船舶与海洋工程] 0802[工学-机械工程] 0814[工学-土木工程] 082002[工学-油气田开发工程] 

基　　金：Fofinancially supported by the National Natural Science Foundation of China(Grant No.52271288) Peiyang Scholar Initiation Fund from Tianjin University 

主　　题：lined pipe bending nonlinear ring theory buckling plasticity 

摘      要：Mechanically lined pipe(MLP)is often used for offshore oil and gas transport because of its low cost and corrosion *** installation and operation,the pipe may undergo severe bending deformation,which causes the liner to separate from the outer pipe and buckles,affecting the stability of the whole *** this paper,the buckling response of MLP subjected to bending is investigated to clarify its bending characteristics by employing both experiments,numerical simulation,as theoretical *** types of MLPs were manufactured with GB 45 carbon steel(SLP)and Al 6061(ALP)used as the outer pipe material,*** hydraulic expansion and bending experiments of small-scale MLPs are *** addition to the ovalized shape of the cross-section for the SLP specimens,the copper liner was found to wrinkle on the compressive *** contrast,the liner of ALP remains intact without developing any wrinkling and collapse *** addition,a dedicated numerical framework and theoretical models were also *** was found both the manufacturing and bending responses of the MLP can be well reproduced,and the predicted maximum moment and critical curvatures are in good agreement with the experimental results.