Journal
COMPUTERS & STRUCTURES
Volume 132, Issue -, Pages 22-33Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.compstruc.2013.10.017
Keywords
Pipelines; Corrosion defects; Isolated pit; Failure pressure; Semi-empirical methods; Finite element analysis
Funding
- Pontifical Catholic University of Parana (PUCPR)
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Corrosion defects which occur in oil and gas pipelines may compromise the safety of such structures. This paper makes an assessment of the accuracy of some of the analytical procedures commonly employed by industry to calculate the failure pressure of corroded pipelines via finite element analyses (FEA). Second, this paper studies the stress distribution on isolated pit corrosion defects also via FEA. Analytical procedures to calculate the failure pressure associated to isolated pits are not available yet. Thus, based on the stress analysis results, such a procedure is devised and proposed here. (C) 2013 Elsevier Ltd. All rights reserved.
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