A significant effort over the past 30 years has been made to study the behavior of metal-loss defects of corroded pipeline under static internal pressure using experimental, numerical and theoretical methods. According to DNV RP F101, the real corrosion defects can be divided into three types, namely single defect, interacting defect and complex shaped defect. A single defect is one that does not interact with a neighboring defect; an interacting defect is one that interacts with neighboring defects in an axial or circumferential direction; a complex shaped defect is a defect that results from combining colonies of interacting defects, or a single defect for which a profile is available.
Study on Residual Strength Estimation Methods of Corroded Pipelines Under Internal Pressure
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Li, X, Bai, Y, & Wang, A. "Study on Residual Strength Estimation Methods of Corroded Pipelines Under Internal Pressure." Proceedings of the ASME 2012 31st International Conference on Ocean, Offshore and Arctic Engineering. Volume 3: Pipeline and Riser Technology. Rio de Janeiro, Brazil. July 1–6, 2012. pp. 159-168. ASME. https://doi.org/10.1115/OMAE2012-83184
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