Predicting the probability of failure of cementitious sewer pipes using stochastic finite element method

Amir M. Alani, Asaad Faramarzi*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)
86 Downloads (Pure)

Abstract

In this paper, a stochastic finite element method (SFEM) is employed to investigate the probability of failure of cementitious buried sewer pipes subjected to combined effect of corrosion and stresses. A non-linear time-dependant model is used to determine the extent of concrete corrosion. Using the SFEM, the effects of different random variables, including loads, pipe material, and corrosion on the remaining safe life of the cementitious sewer pipes are explored. A numerical example is presented to demonstrate the merit of the proposed SFEM in evaluating the effects of the contributing parameters upon the probability of failure of cementitious sewer pipes. The developed SFEM offers many advantages over traditional probabilistic techniques since it does not use any empirical equations in order to determine failure of pipes. The results of the SFEM can help the concerning industry (e.g., water companies) to better plan their resources by providing accurate prediction for the remaining safe life of cementitious sewer pipes.

Original languageEnglish
Pages (from-to)6641-6656
Number of pages16
JournalInternational Journal of Environmental Research and Public Health
Volume12
Issue number6
DOIs
Publication statusPublished - 10 Jun 2015

Keywords

  • Cementitious sewer pipe
  • Concrete corrosion
  • Probability of failure
  • Random variables
  • Stochastic finite element method

ASJC Scopus subject areas

  • Public Health, Environmental and Occupational Health
  • Health, Toxicology and Mutagenesis

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