弹塑性大变形有限元法在直缝焊管成型中的应用  

The study of the forming of welded tube by the finite element method concerning large elastoplastic deformation

作　　者：叶金铎[1] 温殿英[1] 冯垣[1] 潘丽华[1] 

机构地区：[1]天津理工学院

出　　处：《重型机械》2001年第1期34-36,58,共4页Heavy Machinery

基　　金：天津市自然科学基金!资助项目 (914 0 80 115 )

摘　　要：采用弹塑性大变形有限元法研究了直缝焊管成型过程 ,针对边界非线性问题 ,首次导出了位移边界条件的迭代方法 ,分析了33.5mm× 2 mm双半径焊管管坯表面的应变分布规律。该方法也适用于冷弯过程。The forming process of welded tube is studied by the FEM of large elastic plastic deformation.A new method of dealing with nonlinear displacement boundary conditions is firstly developed The laws of strain distribution are given by numerical examples.The method can be used for all the processes of cold bent rolling forming.

关 键 词：弹塑性 大变形 边界非线性 有限元法 焊管 

分 类 号：TG331[金属学及工艺—金属压力加工] TG335.75