0
Research Papers: Pipeline Systems

Prediction of Failure Pressures in Pipelines With Corrosion Defects

[+] Author and Article Information
J. Oliveros, J. L. Alamilla, E. Astudillo, O. Flores

Benemérita Universidad Autónoma de Puebla, Avenida San Claudio y 18 Sur, Ciudad Universitaria, Col. San Manuel, 72570, Puebla, Puebla, Mexico Instituto Mexicano del Petróleo, Eje Central Lazaro Cardenas 152, Col. San Bartolo Atepehuacan, CP 07730 Gustavo A. Madero, México DF, México, 01(52) 559175-8184

J. Pressure Vessel Technol 130(2), 021703 (Mar 19, 2008) (9 pages) doi:10.1115/1.2892032 History: Received March 30, 2006; Revised July 24, 2007; Published March 19, 2008

The mathematical model to predict failure pressures in corroded pipelines proposed in this work is based on the analysis of the original model by Cronin and Pick. New definitions and interpretations in order to obtain this new model are given. As a consequence of this, the model can be more adequately interpreted and easier to apply under practical conditions. The new model and the finite element method are applied to predict failure pressures for pipelines with corrosion defects of elliptic and irregular geometries, and the predictions are similar. The model is used to predict the failure pressure in actual defects and compared to results of experimental tests and the original model. This study shows that pressures predicted by the model presented here are comparable to those of experimental tests.

FIGURES IN THIS ARTICLE
<>
Copyright © 2008 by American Society of Mechanical Engineers
Your Session has timed out. Please sign back in to continue.

References

Figures

Grahic Jump Location
Figure 1

Contour of an actual corrosion defect and corresponding values of the function gdCP(x) at every point x

Grahic Jump Location
Figure 2

Values of ψ(x) and corresponding values of the function gdCP(x) in every point x

Grahic Jump Location
Figure 3

Corrosion defect. The shaded area is a corrosion measure at point x.

Grahic Jump Location
Figure 4

Cross section of an elliptic defect

Grahic Jump Location
Figure 5

Longitudinal section of an elliptic defect

Grahic Jump Location
Figure 6

Geometry of a complex defect

Grahic Jump Location
Figure 7

Comparison of experimental failure pressures and predicted failure pressures

Grahic Jump Location
Figure 8

Comparison of experimental failure pressures and predicted failure pressures, where the instability pressure for no defect is 0.86×Pplainpipe

Grahic Jump Location
Figure 9

Geometry of a groove corrosion defect

Grahic Jump Location
Figure 10

Function gd(x0) obtained for a groove corrosion defect

Tables

Errata

Discussions

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In