China Plastics ›› 2023, Vol. 37 ›› Issue (11): 149-162.DOI: 10.19491/j.issn.1001-9278.2023.11.017

• Review • Previous Articles     Next Articles

Research progress in life prediction of polyethylene pipeline

WU Liwen1, QIAO Liang2,3, FAN Junming2,3, WEN Jiongming4, LI Zhaopu1, ZHANG Yi1()   

  1. 1.College of Pipeline and Civil Engineering,China University of Petroleum (East China),Qingdao 266580,China
    2.Shenzhen Gas Corporation Ltd,Shenzhen 518000,China
    3.Shenzhen Engineering Research Center for Gas Distribution and Efficient Utilization,Shenzhen 518000,China
    4.Special Equipment Safety Supervision Inspection Institute of Jiangsu Province (Changshu Branch),Changshu 215500,China
  • Received:2023-05-19 Online:2023-11-26 Published:2023-11-22

Abstract:

This paper reviewed the failure modes and failure criteria of polyethylene (PE) pipelines and summarized four pipeline life prediction methods, including the long⁃term hydrostatic test method, Arrhenius formula method, slow crack growth method, and hyperbolic constitutive equation method. Five pipeline risk assessment methods were summarized, which included expert scoring method, fault tree analysis method, pipeline index risk scoring method, and analytic hierarchy process and fuzzy comprehensive evaluation method. In the future, a finite element analysis model under the force⁃chemical coupling action should be established through combining with the big data analysis and pipeline risk assessment methods to ensure a safe operation for the in⁃service PE pipelines.

Key words: polyethylene pipe, failure mode, failure mechanism, life prediction, pipeline risk assessment

CLC Number: