Q460钢T型接头单边开坡口非对称焊接的数值模拟
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摘要
通过Ansys有限元模拟软件模拟了Q460钢单边开坡口的T型接头在非对称焊接过程中的温度场和应力场,预测了焊件的焊后变形。结果表明,随着距焊缝中心的距离增加,应力逐渐减小,焊接接头产生了角变形,焊缝中间为拉应力,焊缝两端为压应力。
Through Ansys finite element simulation software, the temperature field and stress field of Q460 steel T-joint with single side groove in the asymmetrical welding process were simulated, and the post weld deformation was predicted.The result shows that with the distance from the weld center increasing, the stress decreases gradually, and the angular deformation occurs in welded joint. The stress in the middle of the weld is tensile stress, and the stress at both ends of the weld is compressive stress.
Through Ansys finite element simulation software, the temperature field and stress field of Q460 steel T-joint with single side groove in the asymmetrical welding process were simulated, and the post weld deformation was predicted.The result shows that with the distance from the weld center increasing, the stress decreases gradually, and the angular deformation occurs in welded joint. The stress in the middle of the weld is tensile stress, and the stress at both ends of the weld is compressive stress.
引文
[1]方洪渊.焊接结构学[M].北京:机械工业出版社,2013.
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[3]邓德安,清岛祥一.焊接顺序对厚板焊接残余应力分布的影响[J].焊接学报,2011,32(12):55-58.
[4]陈彬斌,庞盛永,周建新,等.TC4钛合金扫描电子束焊接温度场数值模拟[J].焊接学报,2013,34(7):33-37.
[5]王佳节,矫勇,于久灏,等.电子束焊熔池温度场及小孔演变的数值模拟[J].焊接学报,2017,38(6):87-90.
[2]李瑞英,赵明,吴春梅.基于SYSWELD的双椭球热源模型参数的确定[J].焊接学报,2014,35(10):93-96.
[3]邓德安,清岛祥一.焊接顺序对厚板焊接残余应力分布的影响[J].焊接学报,2011,32(12):55-58.
[4]陈彬斌,庞盛永,周建新,等.TC4钛合金扫描电子束焊接温度场数值模拟[J].焊接学报,2013,34(7):33-37.
[5]王佳节,矫勇,于久灏,等.电子束焊熔池温度场及小孔演变的数值模拟[J].焊接学报,2017,38(6):87-90.