Failure Pressure in Corroded Pipelines Based on Equivalent Solutions for Undamaged Pipe

被引:22
作者
Bony, M.
Alamilla, J. L. [1 ]
Vai, R. [1 ]
Flores, E. [2 ]
机构
[1] Inst Mexicano Petr, Mexico City 07730, DF, Mexico
[2] Inst Politecn Nacl, ESIA Zacatenco, Mexico City 07738, DF, Mexico
来源
JOURNAL OF PRESSURE VESSEL TECHNOLOGY-TRANSACTIONS OF THE ASME | 2010年 / 132卷 / 05期
关键词
failure pressure; infinitely long groove; burst test; damaged and undamaged pipelines; LINEPIPE; PREDICTION; CORROSION; DEFECTS; STRESS;
D O I
10.1115/1.4001801
中图分类号
TH [机械、仪表工业];
学科分类号
0802 ;
摘要
Simple and accurate approaches to predict failure pressures in corroded pipelines are outlined in this work. It is shown that failure pressures for corroded pipelines can be predicted from the solution for undamaged pipelines using an equivalent wall thickness. Three different yield criteria (Tresca, ASSY (average shear stress yield), and von Mises) are reviewed in the light of reported experimental burst pressures. At first, failure pressures for cylindrical vessels with an infinitely long groove are studied by means of numerical simulations. The effect of groove size (depth and width) over the pipeline performance is quantified through a model. Finally, the scheme is extended to estimate the failure pressure of thin walled vessels with irregular finite defects. [DOI: 10.1115/1.4001801]
引用
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页数:8
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