An expression for the relationship between the amplitude of MAE (up) and applied stress, This expression provides a basis for the detection of the residualstress in ferromagnetic materials.

• 根据应力与磁声发射参量的一些关系和规律,提出了磁声发射幅值受外加应力影响的表达式,为检测铁磁材料残余应力提供了基础依据。