Simulation Analysis of Jiles-Atherton Hysteresis Model
The magnetization method has been widely used in the nondestructive testing of steel plate specimens,but analysis of the internal magnetization state of the specimen during the magnetization process remains to be solved.To handle this problem,this study analyzes the magnetization state of steel plate specimens magnetized by AC based on the theory of Jiles-Atherton.It then deduces the calculation process of hysteresis magnetization model and analyzes the influence of various parameters on the change of magnetization.Based on the J-A hysteresis magnetization theory,the finite element simulation model is established,and the AC coil is used to periodically magnetize the steel plate specimen to obtain the internal magnetization distribution of the steel plate,which will provide theoretical support for the application of the magnetization method in defect detection.
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