基于ANSYS单元生死技术的焊接模拟
Simulation of Welding Based on ANSYS Unit Birth and Death Technology
高耀东1, 何 雪2
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作者单位：内蒙古科技大学 机械工程学院，内蒙古 包头 014010
中文关键字：焊接；ANSYS；有限元模拟；单元生死技术
英文关键字：welding; ANSYS; finite element simulation; unit birth and death technology
中文摘要：以开V型坡口钢板为例，利用ANSYS软件对其焊接过程进行有限元模拟，建立了合理的三维实体模型，使用单元“生死”技术模拟焊接焊缝的依次生成，获得了焊接温度场及残余应力场的分布规律，并对结果进行了分析和讨论，得出计算结果与实测结果比较吻合，说明ANSYS的单元生死技术能有效地模拟焊接过程，本方法对各种关键问题的处理比较得当。
英文摘要：Taking open V-groove plate for example, using ANSYS software to make finite element simulation for the process of welding, a reasonable 3-d solid model was established. Using unit "birth and death" technical to simulate the generation of welding and welding gap was successful, the distribution regulation of temperature and residual stress field were obtained, and the results were analyzed and discussed. The results show that the calculated results accord with measured results, which show that the unit birth and death technology of ANSYS can effectively simulate the welding process. This method is proper to handle variety of key issues.