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Effect of corrosion damage on a pipeline burst pressure and repairing methods

Abstract : On the basis of the calculation of the stress field around the corrosion-damaged areas on the external part of a pipeline used for the transport of hydrocarbons, an analysis of the effect of the level of post-repair burst pressure by composite patches is proposed. This work examines some points of views on the burst pressure standards calculation on real test on pipeline with external corrosion defects. This study divided to three parts. In the first, an inspection is given for a real pipe exhibiting a surface corrosion defect. The corrosion defects were collected and divided into six important defects. The internal pressure has increased to the burst of pipeline. The second part illustrated a numerical study of the defects interaction effect on the safety of pipeline. The third part of this study is showing a finite element analysis of repaired pipe using the composite repair; we will study the effect of the composite sleeve number on the structural integrity of the pipe. The principle of failure assessment (FAD) diagram is described, and particularly, the definition of the non- dimensional applied crack tip loading kr, the non- dimensional net applied stress (or load) Sr or Lr is given. The interest lays in the fact that many pipes defects are scratch or gouge types. In the FAD, results demonstrated that the composite repair method does not affect the interpolation curve and, at the same time, had a slightly effect on the function point.
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Submitted on : Thursday, March 18, 2021 - 6:35:26 AM
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Mohamed-Raouf Amara, O. Bouledroua, M. Hadj Meliani, Z. Azari, M. Tahar Abbess, et al.. Effect of corrosion damage on a pipeline burst pressure and repairing methods. Archive of Applied Mechanics, Springer Verlag, 2019, 89 (5), pp.939-951. ⟨10.1007/s00419-019-01518-z⟩. ⟨hal-03172796⟩



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