【摘要】 利用焊接残余应力沿y轴 (焊缝 )方向分量σy 关于坐标x的近似函数 ,由有限个测点数组 ,经过数字曲线拟合 ,求出焊缝中心部位 (x =0 )的残余应力σy0 ,从而克服了磁测法较大探头接触面积对焊缝中心部位检测的困难更多还原

【Abstract】 The maximum residual stress σ y 0 in the center of the welding seam was calculated by the approximate function of x coordinate with limited the experiment pair data using the method of cure imitation. The σ y is the component of the welding residual stress along the welding seam (the y axis) direction. The difficulty of the detection of residual stress in the center of the welding seam was surmounted.更多还原