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Numerical model for estimating time-dependent reliability of a corroding pipeline over its lifetime

Authors
  • Nahal, Mourad1
  • Khelif, Rabia2
  • 1 University of Souk Ahras, Souk Ahras, 41000, Algeria , Souk Ahras (Algeria)
  • 2 Badji Mokhtar University, Annaba, 23000, Algeria , Annaba (Algeria)
Type
Published Article
Journal
International Journal of Advanced Structural Engineering
Publisher
Springer Berlin Heidelberg
Publication Date
Nov 28, 2018
Volume
11
Issue
1
Pages
1–7
Identifiers
DOI: 10.1007/s40091-018-0210-4
Source
Springer Nature
Keywords
License
Green

Abstract

This work aims to evaluate time-dependent reliability of a pipeline under corrosion impact over its lifetime. A finite element corrosion model was proposed, and an empirical power low model is also used and coupled with a probabilistic model for evaluating reliability index about a limit state function. The failure probability of structure was determinate for deferent corrosion rate (low, moderate and high rates), considering corrosion depth. Form method and Monte Carlo simulation are used for evaluating the structure reliability. The impact of applying both effect of corrosion and residual stress is shown which is appears a significant failure probability of the studied pipeline. The found results are analyzed and discussed.

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