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Evaluating the Failure Pressure of Corroded Pipeline

[+] Author Affiliations
Jian Shuai

China University of Petroleum, Beijing, China

Paper No. PVP2010-25885, pp. 1021-1027; 7 pages
doi:10.1115/PVP2010-25885
From:
  • ASME 2010 Pressure Vessels and Piping Division/K-PVP Conference
  • ASME 2010 Pressure Vessels and Piping Conference: Volume 6, Parts A and B
  • Bellevue, Washington, USA, July 18–22, 2010
  • Conference Sponsors: Pressure Vessels and Piping Division
  • ISBN: 978-0-7918-49255 | eISBN: 978-0-7918-3878-5
  • Copyright © 2010 by ASME

abstract

This paper presented a review on ASME B31G, DNV RP-F101 and PCORRC methods in evaluating the remaining strength of corroded pipeline. These methods are validated by 67 sets of data about full-scale burst test of pipe with a defect. A numerical model for predicting the burst failure of corroded pipeline was constructed using the non-linear finite element method. Using this model, the full-size pipe burst experiments of pipelines 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 was presented, in which depth, length and width of a defect was involved. Comparison of the formula with the other assessment method and experiments showed the formula had a satisfactory precision.

Copyright © 2010 by ASME
Topics: Pressure , Pipelines , Failure

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