Construction and modeling of reversible behavior of GO SiFe under bidimensional circular induction

In this paper, a new ~ncthod to ohtain thc rcvcrsiblc characteris~ic or GO SiFe sheet, under circular I-orating intluclion. is proposctl. I r uses dynamic clockwiac and anticlockwisc H locus and a suitable averaging. Tcs~cd Sor v;~riablc frcqucncy, this method is valid and leads to identical characteristics from 10 to 300 Hz. However, I'or 400 Hz tlic curvc ohtainctl i.; largcr and the ~iicthod is no lnorc corrcct. This cl'fcct is due to the non uniformity o r ~ l i c vcc~ors I3 and H in tlic cross section of thc h c e t and can bc clcarly cxplaincd by a difrusion calculation. The I-c\\,cr\ 1-i locus points oul tlic syrntnctry ol'thc shcct and thc characterislie axcs of the Goss texture. A modeling of such;I hchnvior is attcniptcd considering tlic applicd I'icld cncrgy and the anisotropy energy with a reduced coli\. Mayetic behavior of electrical steel under circular induction gives a good characterization of the macroscopic anisotropy of the material. Many data are now available thanks to the enhanced work done on niagnctic ch:u-acterisation and behavior analysis. However, the modeling of the properties observed remains poor arid vcry clifficult. Moreover, iiicasurenient are generally niadc under dynamic rotating excitation,