Failure analysis and design of grouted fibre-composite repair system for corroded steel pipes

Shamsuddoha, Md and Manalo, Allan ORCID: https://orcid.org/0000-0003-0493-433X and Aravinthan, Thiru ORCID: https://orcid.org/0000-0003-0691-8296 and Islam, Md Mainul and Djukic, Luke (2021) Failure analysis and design of grouted fibre-composite repair system for corroded steel pipes. Engineering Failure Analysis, 119:104979. pp. 1-15. ISSN 1350-6307


Abstract

Grouted fibre-reinforced composite stand-off sleeve repair is a light-weight and easily deployable repair system for steel pipelines with localised metal loss. The effectiveness of this type of repair system is dependent on the load transfer through the grout layer, which is weaker than neighbouring components and susceptible to failure due to stresses developed from applied internal pressure. In this study, three dimensional (3D) Finite Element Analyses (FEA) of a full-scale pipe with different levels of metal loss were implemented to evaluate the failure behaviour and capacity of grouted composite repair system. Steel pipes with a localised defect ranging from 20% to 80% metal loss and repaired using two infill grout systems reinforced with carbon and glass sleeves of different thicknesses were considered. The results indicated that the performance of the repair system is governed by the tensile cracking of the infill grout. A thicker sleeve and higher tensile strength grout delivers higher pipe capacity in the repair system. On the other hand, a high modulus grout provides a more effective load transfer from steel to sleeve. Using a high tensile strength grout, the composite repair system can restore the capacity of the steel pipe with defect up to about 70% metal loss.


Statistics for USQ ePrint 43967
Statistics for this ePrint Item
Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: Permanent restricted access to Published version in accordance with the copyright policy of the publisher.
Faculty/School / Institute/Centre: Current - Institute for Advanced Engineering and Space Sciences - Centre for Future Materials (1 Jan 2017 -)
Faculty/School / Institute/Centre: Current - Institute for Advanced Engineering and Space Sciences - Centre for Future Materials (1 Jan 2017 -)
Date Deposited: 26 Oct 2021 07:29
Last Modified: 10 Nov 2021 01:44
Uncontrolled Keywords: grouted repair system, composite sleeve, pipelines, parametric study, design consideration
Fields of Research (2008): 09 Engineering > 0912 Materials Engineering > 091202 Composite and Hybrid Materials
Fields of Research (2020): 40 ENGINEERING > 4016 Materials engineering > 401602 Composite and hybrid materials
Socio-Economic Objectives (2008): B Economic Development > 88 Transport > 8899 Other Transport > 889903 Pipeline Transport
Socio-Economic Objectives (2020): 27 TRANSPORT > 2799 Other transport > 279903 Pipeline transport
Identification Number or DOI: https://doi.org/10.1016/j.engfailanal.2020.104979
URI: http://eprints.usq.edu.au/id/eprint/43967

Actions (login required)

View Item Archive Repository Staff Only