| 石油输送管线的疲劳裂纹扩展与寿命预估 |
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| 引用本文： | 史耀武,史轩,孙嗣莹.石油输送管线的疲劳裂纹扩展与寿命预估[J].焊管,2003,26(2):7-10. |
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| 作者姓名： | 史耀武 史轩 孙嗣莹 |
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| 作者单位： | 1. 北京工业大学
2. 北京巴布科克·威尔科克斯有限公司 |
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| 摘 要： | 用紧凑拉伸（CT）试件，测试了API5LX52管材及焊管接头的疲劳裂纹扩展速率，根据泵站的载荷谱，估算了管线的服役寿命。指出管线运行载荷谱及焊管缺陷对石油管线的服役寿命有重要影响。减少运行中管线的压力波动。消除焊趾缺陷。严格焊管生产的无损检查，对延长管线的服役寿命有重要作用。
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| 关 键 词： | 载荷谱 石油输送管线 疲劳裂纹扩展 寿命预估 |
Fatigue Crack Growth and Life Estimation of a Crude Oil Pipeline |
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| Shi Yaowu,Shi Xuan et al.Fatigue Crack Growth and Life Estimation of a Crude Oil Pipeline[J].Welded Pipe and Tube,2003,26(2):7-10. |
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| Authors: | Shi Yaowu Shi Xuan |
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| Abstract: | Fatigue crack growth rate has been measured for the API 5L X52 steel and its welded joints using CT specimens.Based on the operational pressure fluctuation spectrum acquired at pump station discharges,service life of the pipeline is estimated.It is indicated that operational pressure spectrum and defects of pipeline has important influence on the lifetime of crude oil pipeline.In order to extend the lifetime,we must decrease the pressure fluctuation of the pipeline, eliminate defects of welds,and enhance non-destructive testing. |
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| Keywords: | Pipeline loading spectrum fatigue crack life estimation |
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