Reliability of corroded thin walled pipes repaired with composite overwrap

Saeed, Nariman, Baji, Hassan and Ronagh, Hamid (2014) Reliability of corroded thin walled pipes repaired with composite overwrap. Thin-Walled Structures, 85 201-206. doi:10.1016/j.tws.2014.08.020

Author Saeed, Nariman
Baji, Hassan
Ronagh, Hamid
Title Reliability of corroded thin walled pipes repaired with composite overwrap
Journal name Thin-Walled Structures   Check publisher's open access policy
ISSN 0263-8231
Publication date 2014-12
Year available 2014
Sub-type Article (original research)
DOI 10.1016/j.tws.2014.08.020
Open Access Status
Volume 85
Start page 201
End page 206
Total pages 6
Place of publication Pergamon Press
Publisher Kidlington, Oxford United Kingdom
Collection year 2015
Language eng
Abstract Current design codes provide two design methods: allowable stress/strain design and limit state design. Design in the current pipework composite repair codes is based on the allowable design method and only two safety factors are applied to the ultimate strain of the composite layer and to the yield stress of steel. On the other hand, safety factors are applied to each of the load and resistance parameters in the limit state design method. The limit state design method is probabilistic based in which the safety factors are calibrated based on a target reliability index. In this study, an investigation into the reliability of rehabilitated pipelines is conducted. The limit state function is defined based on ASME PCC-2, and reliability analysis is conducted using the AFOSM method. Results show that ASME PCC-2 generally provides adequate safety although the level of safety is not uniform for different percentages of corrosion. Comparing the achieved results and the ISO 2394 target reliability indices, some resistance factors are proposed.
Keyword FRP
Overwrap repair
Statistical properties/methods
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Civil Engineering Publications
Official 2015 Collection
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Created: Tue, 21 Oct 2014, 03:14:22 EST by System User on behalf of School of Civil Engineering