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On the Effect of Corrosion Defects in the Collapse Pressure of Pipelines

[+] Author Affiliations
T. A. Netto, U. S. Ferraz, A. Botto

COPPE/UFRJ, Rio de Janeiro, RJ, Brazil

Paper No. OMAE2005-67261, pp. 509-519; 11 pages
doi:10.1115/OMAE2005-67261
From:
  • ASME 2005 24th International Conference on Offshore Mechanics and Arctic Engineering
  • 24th International Conference on Offshore Mechanics and Arctic Engineering: Volume 3
  • Halkidiki, Greece, June 12–17, 2005
  • Conference Sponsors: Ocean, Offshore and Arctic Engineering Division
  • ISBN: 0-7918-4197-9 | eISBN: 0-7918-3759-9
  • Copyright © 2005 by ASME

abstract

The loss of metal in a pipeline due to corrosion usually results in localized pits with various depths and irregular shapes on its external and internal surfaces. The effect of external corrosion defects was studied via a series of small-scale experiments and through a nonlinear numerical model based on the finite element method. After calibrated in view of the experimental results, the model was used to determine the collapse pressure as a function of material and geometric parameters of different pipes and defects.

Copyright © 2005 by ASME

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