【摘要】 基于等效应力磁场理论，给出了平面应力状态下，材料沿（垂直于） 焊缝方向磁导率与两个主应力之间的函数关系，从而可以独立地测量任意点的残余应力．实验结果证明了方法的正确性更多还原

【Abstract】 Using the principle of equivalent stress magnetic field are presented, the functional relations between the variation of the material permeability along (or perpendicular to) the welding seam and the two direction stresses under the state of plane stress are presented. The relations indicate that the residual stress at any point can be measured. Experimental results verify that the idea is correct.更多还原