OALib Journal期刊
用可变长度热源模拟奥氏体不锈钢多层焊对接接头的焊接残余应力
DOI: 10.3724/SP.J.1037.2009.00521
Keywords: 焊接残余应力 ,数值模拟 ,奥氏体不锈钢 ,可变长度热源
Abstract:
采用可变长度热源模型对奥氏体不锈钢平板多层焊对接接头的残余应力进行了数值模拟,同时也用实验方法测量了平板对接接头上下表面的残余应力.通过比较由热弹塑性有限元计算得到的残余应力与由电阻应变片法测量得到的实验结果得知,采用该模型对多层焊对接接头残余应力的数值模拟,不仅可以大大缩短计算时间,也可以得到较高的计算精度.
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