摘要
采用ABAQUS有限元数值计算方法,分析了含腐蚀缺陷X70管道的剩余强度。根据相关标准的失效准则,研究了腐蚀的发展规律,并考虑到双腐蚀缺陷对管道剩余强度的影响。结果表明,对于双腐蚀缺陷,管道剩余强度随着两腐蚀轴向间距的增大而增大,最后趋于稳定;管道剩余强度随着两腐蚀缺陷径向夹角的增大而增大,最后趋于稳定。研究结果对于管道的安全运行和维护具有重要的作用。
ABAQUS finite element method（FEM） was employed to analyze the residual strength of X70 pipeline with corrosion defects. According to relative failure criteria, the corrosion development law was studied. The results showed that for a pipeline with two corrosion defects, the residual strength increased as the axis distance of two corrosion defects increased. The residual strength increased with the increase of radial angle of two corrosion defects. The results is important to the pipeliners safe operation and maintenance.
出处
《腐蚀与防护》
CAS
北大核心
2011年第2期150-152,共3页
Corrosion & Protection
关键词
X70管线钢
腐蚀
剩余强度
有限元分析
X70 pipeline steel
corrosion
residual strength
finite element analysis
