A comprehensive review of polyethylene pipes: Failure mechanisms, performance models, inspection methods, and repair solutions

IF 4.8 Q2 ENERGY & FUELS
Hao Wang , Jay Shah , Said-El Hawwat , Qindan Huang , Alireza Khatami
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引用次数: 0

Abstract

Polyethylene (PE) pipes are widely used for natural gas distribution due to their good durability and low costs. To ensure the integrity of PE pipelines, it is crucial to develop a comprehensive understanding of pipe failure mechanisms and to recognize the benefits and limitations of different pipeline monitoring strategies. This review provides an overview of different types of pipe failures in the context of their response to operational loads and material degradation. It also covers the details of mechanical tests for predicting the long-term performance of pipes, theoretical models for studying defect growth, examines different defect detection methods, and concludes with an assessment of pipe repair techniques. The findings highlight the importance of investigating the effects of existing defects on the operational performance of the pipeline. This indirectly emphasizes the need to develop time- and cost-efficient strategies to detect defects in the early stages. There is a clear gap in the inclusion of PE aging effects in the lifetime performance models. In addition, given the large number of inspection techniques, a regulated selection of pipeline inspection methods is highly desired, specific to the defect type. Further research in advancing adhesive-based repair of incipient defects is crucial to prevent catastrophic defect growth.

Abstract Image

聚乙烯管道综合评述:故障机理、性能模型、检查方法和维修解决方案
聚乙烯(PE)管道因其耐用性好、成本低而被广泛用于天然气输送。为确保聚乙烯管道的完整性,全面了解管道失效机理并认识不同管道监测策略的优势和局限性至关重要。本综述从管材对运行负荷和材料降解的响应角度,概述了不同类型的管材故障。文章还详细介绍了用于预测管道长期性能的机械测试、研究缺陷增长的理论模型、不同的缺陷检测方法,最后还对管道修复技术进行了评估。研究结果强调了调查现有缺陷对管道运行性能影响的重要性。这间接强调了制定省时、省钱的早期缺陷检测策略的必要性。在将 PE 老化效应纳入寿命性能模型方面存在明显差距。此外,鉴于存在大量检测技术,因此非常需要针对缺陷类型对管道检测方法进行规范选择。进一步研究推进基于粘合剂的初期缺陷修复,对于防止灾难性缺陷扩大至关重要。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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CiteScore
7.50
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0.00%
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