Two-Dimensional Magnetostriction of Silicon Steel Sheets. I. Magnetostriction of the Arbitrary Direction under an Alternating Magnetic Flux.

This paper describes the magnetostriction of an arbitrary direction under an alternating magnetic flux measured by a two-dimensional magnetic measurement method. The magnetostriction of an arbitrary direction was measured by three-axial strain gage and analyzed by the tensor method. In the case of non-oriented silicon steel sheets, the magnetostriction in a direction 45 degrees from the rolling direction was larger than in the rolling direction. In the case of grain-oriented silicon steel sheets, the magnetostriction in a direction 90 degrees from the rolling direction was larger than in the rolling direction.