Analysis of retrofitted corroded steel pipes using internally bonded FRP composite repair systems

Sirimanna, C. S. and Banerjee, S. and Karunasena, W. and Manalo, A. C. and McGarva, L. (2015) Analysis of retrofitted corroded steel pipes using internally bonded FRP composite repair systems. Australian Journal of Structural Engineering , 16 (3). pp. 187-198. ISSN 1328-7982

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Steel pipelines play an important role in the oil and gas industry. Hence corrosion of the steel pipe systems during its service life is a critical issue for the industry. Fibre reinforced composites offer solutions with broad applicability and efficiency for the internal repair of these corroded pipelines. Understanding the behaviour of internal composite repair systems against different internal pressure regimes is an important aspect in the development of a repair system. This study develops the analyses of internal composite bonded repair systems for long steel pipes with an axisymmetric defect, based on Lame’s equation. Various levels of bonding between the steel and composite are studied. Fully bonded optimum internal composite repair thicknesses are determined using biaxial carbon and glass fibre composites for different levels of corrosions, using the Von Mises yielding and Tsai-Hill failure criterion approaches. Two case studies are illustrated using the design nomographs. The analysis technique used was found to be accurate when compared with finite element modelling results.

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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: Published version made available under License.
Faculty / Department / School: Current - Faculty of Health, Engineering and Sciences - School of Civil Engineering and Surveying
Date Deposited: 15 Apr 2016 04:22
Last Modified: 10 May 2016 04:01
Uncontrolled Keywords: GFRP; CFRP; composite repair; failure index; thick cylinder
Fields of Research : 09 Engineering > 0905 Civil Engineering > 090506 Structural Engineering
09 Engineering > 0905 Civil Engineering > 090599 Civil Engineering not elsewhere classified
09 Engineering > 0912 Materials Engineering > 091202 Composite and Hybrid Materials
10 Technology > 1099 Other Technology > 109999 Technology not elsewhere classified
Identification Number or DOI: 10.1080/13287982.2015.1092681

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