Structural failure assessment of buried steel water pipes subject to corrosive environment

Mahmoodian, M and Aryai, V 2017, 'Structural failure assessment of buried steel water pipes subject to corrosive environment', Urban Water Journal, vol. 14, no. 10, pp. 1023-1030.


Document type: Journal Article
Collection: Journal Articles

Title Structural failure assessment of buried steel water pipes subject to corrosive environment
Author(s) Mahmoodian, M
Aryai, V
Year 2017
Journal name Urban Water Journal
Volume number 14
Issue number 10
Start page 1023
End page 1030
Total pages 8
Publisher Taylor and Francis
Abstract It is essential to predict the lifetime of buried pipelines since they are not easily accessible for inspection. In this study a time-dependent, non-linear state model has been introduced for the structural analysis of corrosion affected steel water pipes, stressed by external forces. Using limit state concept, the simultaneous effect of externally applied loading and material corrosion are considered through failure modes. A nonlinear corrosion model is used to simulate the loss of pipe wall thickness during the operation period. In order to take the uncertainty associated with the design and environmental variables into account, a Monte Carlo simulation technique has been adopted using MATLAB. A parametric sensitivity analysis is also carried out to measure the effectiveness of each parameter on the probability of pipe failure. Results obtained for a steel water pipeline in Eastern Sydney are presented and discussed.
Subject Civil Engineering not elsewhere classified
Keyword(s) Steel pipe failure
corrosion
probability of failure
limit state function
multi-failure mode assessment
Monte Carlo simulation
DOI - identifier 10.1080/1573062X.2017.1325500
Copyright notice © 2017 Informa UK Limited, trading as Taylor and Francis Group
ISSN 1573-062X
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