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Prediction of Failure Pressure of Corroded Pipelines Based on Finite Element Analysis

[+] Author Affiliations
Jian Shuai, Chun’e Zhang, Fulai Chen

China University of Petroleum - Beijing, Beijing, China

Renyang He

China Special Equipment Inspection and Research Institute, Beijing, China

Paper No. IPC2008-64260, pp. 375-381; 7 pages
doi:10.1115/IPC2008-64260
From:
  • 2008 7th International Pipeline Conference
  • 2008 7th International Pipeline Conference, Volume 2
  • Calgary, Alberta, Canada, September 29–October 3, 2008
  • Conference Sponsors: International Petroleum Technology Institute and the Pipeline Division
  • ISBN: 978-0-7918-4858-6 | eISBN: 798-0-7918-3835-8
  • Copyright © 2008 by ASME

abstract

A numerical model for predicting the burst failure of corroded pipeline is constructed using the non-linear finite element method, in which the technical points including element mesh, materials model, non-linear solution and failure criterion are recommended. Using this model, the full-size pipe burst experiments in different material, size and defect was analyzed and computed. The proposed FEM model was validated. Based on the calculation result using the model, a new formula predicting failure pressure is proposed, in which depth, length and width of a defect was involved. Comparison of the formula with the other assessment method and experiments show the formula had a satisfactory precision.

Copyright © 2008 by ASME

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