Failure analysis of corroded pipelines reinforced with composite repair systems. (January 2016)

• Record Type: Journal Article
• Authors: Costa Mattos, H.S. da; Reis, J.M.L.; Paim, L.M.; Silva, M.L. da; Lopes Junior, R.; Perrut, V.A.
• Is Part Of: Engineering failure analysis. Volume 59(2016:Jan.)
• Page Start: 223
• Page End: 236
• Publication Date: 2016-01
• Subjects: Polymer based composite repair systems -- Corroded metallic pipelines -- Elasto-plasticity -- Failure pressure estimations; System failures (Engineering) -- Periodicals; Fracture mechanics -- Periodicals; Reliability (Engineering) -- Periodicals; Pannes -- Périodiques; Rupture, Mécanique de la -- Périodiques; Fiabilité -- Périodiques; Fracture mechanics; Reliability (Engineering); System failures (Engineering); Periodicals; Electronic journals; 620.112
• DOI: 10.1016/j.engfailanal.2015.10.007
• Languages: English
• ISSNs: 1350-6307

Abstract

Abstract: The present paper is concerned with the analysis of corroded thin-walled metallic pipes reinforced with polymer based composite repair systems. The goal is to propose a simple methodology to predict the failure pressure of a reinforced pipeline with arbitrary geometry of the corroded region and considering any composite repair system. Hydrostatic tests performed in different laboratories were used to validate the proposed methodology, showing that a simple expression allows estimating a lower bound for the failure pressure. Highlights: The focus is the rehabilitation of corroded pipelines with composite sleeves. A methodology to estimate the failure pressure of a reinforced pipe is presented. Model predictions are compared with the results of 54 different hydrostatic tests. There is a good agreement between model and experiments. The methodology is a valuable auxiliary tool for assessing the integrity of repaired pipelines.