摘要
文章采用ANSYS有限元法对含有缺陷的天然气管道的剩余强度进行分析,分析轴向腐蚀缺陷的长度和深度对管道剩余强度的影响,以及周向腐蚀、均匀腐蚀对管道剩余强度的影响。分析表明:采用有限元方法对含腐蚀缺陷管道计算剩余强度是可行的,以及各种腐蚀状况下管道的剩余强度。有限元分析法可为实际工程应用提供理论参考依据。
The strength of the pipeline with corrosion defects may change greatly.The aim to evaluate the residual strength of the long-distance gas pipeline with corrosion defects is to study whether such pipeline can be used in normal operation under certain operating pressure and the maximum working pressure which is allowed to exist under certain defects.This may help to guide the maintenance plan of the pipeline and the management of safe production.In this paper,the residual strength of the gas pipeline which has defects is analyzed by using the finite element analysis software-ANSYS including the influence of the length and depth of the axial corrosion defect on residual strength of the pipeline,the influence of the general corrosion and the uniform corrosion on residual strength of the pipeline.The analysis shows that the finite element method is viable in calculating the residual strength of pipeline with corrosion defects and the residual strength of the corroded pipeline is obtained under a variety of corrosion parameters.The results indicate that finite element method can provide great theoretical reference to practical engineering application.
出处
《石油化工设备技术》
CAS
2013年第2期9-12,5,共4页
Petrochemical Equipment Technology
关键词
天然气管道
腐蚀缺陷
剩余强度
ANSYS法
Natural gas pipeline
Corrosion defects
Residual strength
ANSYS method
