Article ID Journal Published Year Pages File Type
7168340 Engineering Failure Analysis 2015 9 Pages PDF
Abstract
Gas pipes invariably develop defects. Assessment and repairing methods vary depending on the defect type. When evaluating corrosion in the base metal of a pipe, the burst pressure is usually calculated using conventional evaluation equations, and the possibility of operating the pipe is determined. These equations are applied differently depending on the pipe's physical properties and environment. Therefore, in this study, the failure behavior and burst pressure of a pipe are determined through a full scale hydrostatic burst test; the results are used to simulate the lengths and depths of defects through the finite element method for the shapes and physical properties identical to those of a full-scale pipe. Thus, the corrosion in the base metal of an API X70 pipe was assessed by a stress-based method, and an evaluation equation suitable for use was proposed.
Related Topics
Physical Sciences and Engineering Engineering Industrial and Manufacturing Engineering
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