油气管道长腐蚀缺陷的非线性有限元分析  

Nonlinear Finite Element Analysis of the Long Corrosion Defect on Oil and Gas Pipelines

作　　者：杨茜[1] 王利波[1] 肖坤[1] 

机构地区：[1]西安石油大学石油工程学院,陕西西安710065

出　　处：《辽宁化工》2014年第3期360-362,共3页Liaoning Chemical Industry

摘　　要：利用有限元分析软件ANSYS对长腐蚀缺陷管道进行了非线性有限元分析,发现对于长度超过1 200 mm的长腐蚀缺陷,可以采用简化的二维模型代替三维模型来进行计算;腐蚀缺陷深度对腐蚀管道极限载荷的影响比较大;腐蚀缺陷宽度的影响不明显,可以忽略不计。Non-linear finite element analysis of the long corrosion defect was carried out by using ANSYS finite element analysis software. It＇s found that the long corrosion defect with length more than 1 200 mm can be calculated by a simplified 2D model instead of 3D model; influence of the corrosion depth on the pipeline limit load is larger, but influence of the corrosion width is not obvious.

关 键 词：油气管道 长腐蚀缺陷 非线性 有限元 

分 类 号：TE832[石油与天然气工程—油气储运工程]