铝合金平板钨极氩弧焊数值模拟与残余应力预测
Simulation on TIG Welding of Aluminum Alloy Plate and Residual Stress Predicting
摘 要
利用ABAQUS有限元软件对铝合金平板钨极氩弧焊(TIG)焊接过程进行了数值模拟.首先应用移动的椭圆高斯分布表面热源作为输入热源,对TIG焊过程中的焊件温度场及应力场进行了模拟计算.高度不均匀的焊接温度场,导致构件中产生较大的残余应力与变形.最后,对冷却后的平板残余应力进行了预测,并将有限元计算结果与残余应力的实测结果进行了对比,两者吻合很好.
TIG焊
残余应力
有限元
aluminum alloy
TIG welding
residual stress
finite element
Abstract
The simulation of aluminum alloy plate tungsten inert gas welding (TIG) process using finite element software-ABAQUS was researched.Firstly,the welding temperature field was calculated using elliptical surface Gaussian distributions as the input heat source.The highly non-uniform welding temperature file caused large residual stress and deformation in the welding plate.The welding residual stress of the welded plate was predicted after it cooled down.The results of prediction and actual measured were contrasted finally.Results are verified the applicability of the welding simulation.
中图分类号 TG404
所属栏目
基金项目 国家自然科学基金资助项目(90205035)
收稿日期 2006/3/31
修改稿日期 2006/11/1
网络出版日期
作者单位点击查看
备注金成(1977-),男,辽宁抚顺人,博士研究生.
引用该论文: JIN Cheng,NIU Ji-tai,HE Shi-yu,CHEN Yong. Simulation on TIG Welding of Aluminum Alloy Plate and Residual Stress Predicting[J]. Materials for mechancial engineering, 2007, 31(3): 58～59
金成,牛济泰,何世禹,陈永. 铝合金平板钨极氩弧焊数值模拟与残余应力预测[J]. 机械工程材料, 2007, 31(3): 58～59
被引情况:
【1】王 文,周建新,庞盛永, "铸钢件窄长缺陷补焊过程中热应力及变形行为的有限元模拟",机械工程材料 40, 31-37(2016)
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参考文献
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【3】Chang Peng-hsiang,Teng Tso-liang.Numerical and experimental investingations on the residual stresses of the butt-welded joints[J].Computational Materials Science,2004,29:511-522.
【4】薛忠明,顾兰,张彦华.激光焊接温度场数值模拟[J].焊接学报,2003,24:79-82.
【5】Goldak J,Bibby M,Chakravarti A.A new finite element model for welding heat sources[J].Metallurgical Transactions,1984,13(15B):299-305.
【6】何小东,张建勋,裴 怡,等.航空用钛合金激光焊和TIG焊残余应力测试[J].焊接,2003(10):26-29.
【2】Fricke S,Keim E,Schmidt J.Numerical weld modeling——a method for calculating weld-induced residual stresses[J].Nuclear Engineering and Design,2001,206:139-150.
【3】Chang Peng-hsiang,Teng Tso-liang.Numerical and experimental investingations on the residual stresses of the butt-welded joints[J].Computational Materials Science,2004,29:511-522.
【4】薛忠明,顾兰,张彦华.激光焊接温度场数值模拟[J].焊接学报,2003,24:79-82.
【5】Goldak J,Bibby M,Chakravarti A.A new finite element model for welding heat sources[J].Metallurgical Transactions,1984,13(15B):299-305.
【6】何小东,张建勋,裴 怡,等.航空用钛合金激光焊和TIG焊残余应力测试[J].焊接,2003(10):26-29.
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