以高强钢T型接头多道焊为研究对象, 建立了其热-冶金-力学耦合的三维有限元模型, 运用SYSWELD软件在考虑相变情况下对其焊接过程温度场、残余应力和变形进行了模拟与分析, 并与试验结果进行对比; 此外, 研究了相变对焊接变形的影响。结果表明: 利用温度热循环曲线可对多道焊工艺参数进行优化; 焊缝及近缝区为纵向拉应力和横向拉应力, 远离焊缝中心为纵向压应力和横向拉应力, 且焊缝中心应力略小于近缝区的; 数值模拟结果与试验结果基本一致, 该模型可准确预测焊接残余应力; 考虑相变和不考虑相变两种情况下, 变形的模拟结果一致, 相变对变形影响不明显。
所属栏目
物理模拟与数值模拟
收稿日期
2012/6/152013/4/25
作者单位
廖娟:重庆大学材料科学与工程学院, 重庆400044
凌泽民:重庆大学材料科学与工程学院, 重庆400044
张永龙:重庆大学材料科学与工程学院, 重庆400044
备注
廖娟(1987-), 女, 四川成都人, 硕士研究生。
引用该论文:
LIAO Juan,LING Ze-min,ZHANG Yong-long.Numerical Simulation of Residual Stress and Distortion in T-Joint of High Strength Steel Considering Phase Transformation[J].Materials for mechancial engineering,2013,37(8):85～88
廖娟,凌泽民,张永龙.考虑相变的高强钢T型接头焊接残余应力和变形的数值模拟[J].机械工程材料,2013,37(8):85～88
被引情况:
【1】
张华,周广涛,王霏, "健身自行车架焊接顺序优化的数值模拟",机械工程材料
40, 38-42(2016)
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