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Evaluation of the Residual Life of a Pipe of Oil Pipeline with an External Surface Stress-Corrosion Crack for a Laminar Flow of Oil with Repeated Hydraulic Shocks
被引：0
作者：
О. E. Andreikiv
H. М. Nykyforchyn
І. P. Shtoiko
A. R. Lysyk
机构：
[1] Franko Lviv National University,Karpenko Physicomechanical Institute
[2] Ukrainian National Academy of Sciences,undefined
来源：
Materials Science
|
2017年
/
53卷
关键词：
pipe of an oil pipeline;
laminar oil flow;
hydraulic shocks;
energy approach;
stress intensity factor;
process zone;
period of subcritical growth of stress-corrosion cracks;
D O I：
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学科分类号：
摘要：
We propose a computational model for the evaluation of the residual service life of a pipe of the oil pipeline weakened by an external surface stress-corrosion crack for a laminar flow of oil with multiple hydraulic shocks. The model is based on the earlier developed energy approach to the investigation of retarded crack propagation, the model of application of pulsed loads, and basic mechanisms of propagation of stress-corrosion cracks. By using the model, we study the dependence of the residual service life of the pipe of oil pipeline made of Kh60 steel on the number of hydraulic shocks in the pipe.
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页码：216 / 225
页数：9
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