Evaluation of remaining useful life for corroded pipeline with finite element simulation and reliability theory

作     者：Wang Yifei Su Chun Xie Mingjiang 王艺斐;苏春;谢明江

作者机构：School of Mechanical EngineeringSoutheast UniversityNanjing 211189China Hunan Provincial Key Lab of Health Maintenance for Mechanical EgquipmentHunan University of Science and TechnologyXiangtan 411201China 

出 版 物：《Journal of Southeast University(English Edition)》 (东南大学学报（英文版）)

年 卷 期：2022年第38卷第1期

页      面：70-76页

核心收录：

学科分类：08[工学] 0802[工学-机械工程] 080201[工学-机械制造及其自动化] 

基　　金：The National Natural Science Foundation of China(No.71671035,72001039) the Open Fund of Hunan Provincial Key Laboratory of Health Maintenance for Mechanical Equipment(No.201901) the Open Fund of Jiangsu Wind Power Engineering Technology Center(No.ZK19-03-03) 

主　　题：pipeline burst pressure finite element method remaining useful life Monte Carlo simulation 

摘      要：An integrated approach was proposed to evaluate the remaining useful life(RUL)of corroded petroleum *** types of failure modes(i.e.,leakage and burst failure)were considered,and the corresponding limit state functions(LSFs)were established with the structural reliability theory.A power-law function was applied to model the growth of corrosion defects,and the effect of external environmental factors on the growth of the pipeline s defect was ***,the result was compared with the commonly used linear growth *** that,a finite element simulation model was established to calculate the burst pressure of the pipeline with corrosion defects,and its accuracy was verified through hydraulic burst test and by comparison with international *** that basis,the probability that the pipeline may fail was calculated with Monte Carlo simulation(MCS)and by considering the LSFs,and the pipeline s RUL was obtained ***,sensitivity analysis was conducted to determine the sensitivity parameters for the corrosion and RUL of the *** results indicate that the radial corrosion rate,wall thickness and working pressure have a great influence on the failure probability of the ***,corresponding measures should be adopted during the operation process of the pipeline to reduce the corrosion rate and increase the wall thickness,so as to prolong the pipeline s RUL.