焊管2024，Vol.47Issue(4)：51-58,8.DOI:10.19291/j.cnki.1001-3938.2024.04.008
大直径螺旋埋弧焊管弯曲变形能力的模拟研究
Bending Deformation Capacity of Large-diameter Submerged-arc Welded Helical Pipe
VASILIKIS D 1KARAMANOS S A 1ES S H J V 1方伟 2陈心怡 2吕华2
作者信息
- 2. 中国石油集团工程材料研究院有限公司,西安 710077
- 折叠
摘要
Abstract
Through finite element simulation,the bending deformation capacity of large diameter submerged-arc welded helical pipe designed based on strain design is studied.The main failure mode of steel pipes under bending load is local buckling deformation of the pipe wall.Bending moment,curvature and ovalization are monitored through the numerical analysis,and comparison is conducted with available test data on two 1 067 mm diameter pipes,with D/t ratio of 67 and 119,described in detail.The actual performance of the material,initial geometric defects,and residual stress on the local buckling deformation of submerged-arc welded helical pipe were also analyzed.The critical bending strain and curvature obtained from simulation calculations are consistent with the results of physical experiments and existing empirical formulas.关键词
大直径/螺旋埋弧焊管/弯曲变形/弯曲曲率Key words
large diameter/submerged-arc welded helical pipe/bending deformation/bending curvature分类
能源科技引用本文复制引用
VASILIKIS D,KARAMANOS S A,ES S H J V,方伟,陈心怡,吕华..大直径螺旋埋弧焊管弯曲变形能力的模拟研究[J].焊管,2024,47(4):51-58,8.
