A model for the effect of stress on the low-frequency harmonic content of the magnetic induction in ferromagnetic materials

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Abstract
A simple model used previously by the authors to explain stress variation of magnetic hysteresis is now employed to explain the effect of stress on the amplitudes of the first‐ and third‐order harmonics of the magnetic induction signal resulting from application of an acmagnetic field of low frequency to a steel specimen. An improved expression for the effective field contribution H σ due to stress has been derived from thermodynamic considerations.