焊接变形的三维扫描测量及热弹塑性有限元分析  

Study on the deformation of the butt weld by 3D scanning measurement and finite element analysis

作　　者：张腾 陈斌 许丹 朱忠尹[3] ZHANG Teng;CHEN Bin;XU Dan;ZHU Zhongyin(Southwestern Institute of Physics,Chengdu 610000,China;Luoyang Ship Material Research Institute,Luoyang 471023,China;School of Materials Science and Engineering,Southwest Jiaotong University,Chengdu 610031,China)

机构地区：[1]核工业西南物理研究院,四川成都610000 [2]中国船舶重工集团公司第七二五研究所,河南洛阳471023 [3]西南交通大学材料科学与工程学院,四川成都610031

出　　处：《电焊机》2020年第11期55-57,70,I0005,I0006,共6页Electric Welding Machine

摘　　要：基于SMA490BW钢的材料属性,对两种典型拘束状态下的平板对接的焊接变形进行热弹塑性有限元分析。为验证分析的准确性,采用三维扫描对试板的焊后变形进行实测。结果表明,模拟结果与三维扫描实测值的吻合度较高,热弹塑性模拟计算的结果符合平板对接变形的基本规律,证明热弹塑性有限元法能够较为准确地预测焊接变形。In this paper,based on the material properties of SMA490BW steel,the welding deformation of plate butt joint under two typical restraint conditions was analyzed by thermal elastoplastic finite element method.In order to verify the accuracy of the calculation,3-D scanning was used to scan the post welding deformation.The results show that the results of simulation are in accordance with the principle of deformation for plate butt joint.The results of simulation and three-dimensional scanning are in good agreement,which proves that the thermal elastoplastic finite element method can acc-urately predict the welding deformation.

关 键 词：焊接变形 热弹塑性有限元 SYSWELD 三维扫描 

分 类 号：TG404[金属学及工艺—焊接]