材料工程Issue(1)：64-67,71,5.
大型厚壁筒体斜插弯管结构焊接变形及其演变数值模拟
Numerical Simulation of Welding Deformation and Its Evolution for Welded Cylinder with Angle-inserting Elbow
摘要
Abstract
Based on finite element code,ANSYS software, finite element model of welding deformation of large thick-walled structure was performed, and the relative distance between elbow and thick-wall cylinder, the cylinder roundness variation and the deformation evolution of welded cylinder with angleinserting elbow with thickness of 125mm were numerically analyzed. The results show that the displacement of elbow and the roundness on both sides of the cylinder have opposite changes at the stage of heating to the stage of cooling, moreover the cylinder roundness on the two ends of the cylinder have significant differences; a relatively large contraction appears eventually in the bottom of the groove; the deformation should be reduced by reducing the cooling rate in stage of initial 1-2h.关键词
简化计算/大型厚壁/圆度变化/位移演变Key words
simplify calculation/ thick-wall joint/ roundness variation/ displacement evolution分类
矿业与冶金引用本文复制引用
张可荣,张建勋,黄嗣罗,邱毅强..大型厚壁筒体斜插弯管结构焊接变形及其演变数值模拟[J].材料工程,2011,(1):64-67,71,5.基金项目
国家自然科学基金资助项目(50875200) （50875200）
