为了研究应力、激励磁场对铁磁材料磁化强度及磁输出的影响，本文在J-A理论模型的基础上，分别推演了恒定激励磁场条件下磁化强度与应力之间的微分关系模型，和恒定应力条件下磁化强度与激励磁场之间的微分关系模型，并对以上模型进行了数值仿真和实验验证。仿真结果表明，在恒定激励磁场下，磁化强度随着应力的增大先增大后减小；在恒定应力下，磁化强度随着激励磁场的增大而增大。为了验证以上两模型的正确性，本文设计了对应的验证实验，分别考证了恒定激励磁场条件下磁输出与应力之间的关联关系、恒定应力条件下磁输出与激励磁场之间的关联关系。研究结果表明，实验结果与理论计算趋势基本一致，本研究内容及结果可以为研究磁测应力法的物理机理提供理论参考及引导力磁效应新思考。

In order to study the influence of stress and excited magnetic field on the magnetization and magnetic output of ferromagnetic materials, this study deduced the differential relationship model between magnetization and stress under constant excited magnetic field and the differential relationship model between the magnetization and excited magnetic field under constant stress condition,respectively, based on J-A theoretical model. The above models were verified by numerical simulation and experiment. The results show that the magnetization increases firstly and then decreases with the increase of the stress under the constant excited magnetic field, and the magne-tization increases with the increase of the excited magnetic field under the constant stress. In order to verify the correctness of the two above models, the corresponding verification experiments were designed to verify the relationship between magnetic output and stress under the constant excited magnetic field, and the relationship between magnetic output and excited magnetic field under the constant stress, respectively. The experiment results are consistent with the theoretical calculation results. This study provides a theoretical reference for the study of the physical mechanism of the stress-test by magnetic method, and guide the new thinking on the magneto-mechanical effect.