含裂纹石油管道的工作寿命预测  

SERVICE LIFE PREDICTION OF PETROLEUM PIPELINE CONTAINING CRACK

作　　者：蒋云[1,2] 吕英民 帅健 

机构地区：[1]华北石油勘察设计研究院 [2]石油大学

出　　处：《机械强度》1999年第1期69-71,共3页Journal of Mechanical Strength

摘　　要：以沿管道轴向扩展的疲劳裂纹扩展速率为基础，经过一定的修正，以此分析实际输油管道中较常见的内表面半椭圆裂纹的扩展规律，从而预测出含此种裂纹的管道的工作寿命。解决了工程中的实际问题，为工程应用提供了可靠的理论依据。Based on the test results of the fatigue crack growth rate, in which the crack propagation is along the longitudinal direction of a pipeline,the propagation rule of an internal semi elliptical surface crack in a petroleum pipeline has been analyzed by modifying the above fatigue crack growth rate. Then the service life of the petroleum pipeline containing the crack is predicted in this paper.Thus,a reliable theory foundation is supplied for the engineering application.

关 键 词：裂纹 疲劳裂纹扩展 工作寿命 石油管道 烛缝 

分 类 号：TE973[石油与天然气工程—石油机械设备] TG405[金属学及工艺—焊接]