Modeling biaxial stress effects on magnetic hysteresis in steel with the field and stress axes noncoaxial

A model based on the domain wall pinning magnetomechanical hysteresis model of Sablik and Jiles [M. J. Sablik and D. C. Jiles, IEEE Trans. Magn. 29, 2 113 (1993)] was formulated to compute changes in magnetic hysteresis under biaxial stress conditions with the magnetic field and stress axes noncoaxia l. The model included the Villari effect and other asymmetric stress effect s. The magnetic field was taken at various angles relative to the stress ax is. The Barkhausen noise, hysteresis loss, and maximum flux density were co mputed for fields varying between +/-1 kA/m. The results compared favorably to experimental data on several steels-Polish St3 steel, Polish St41 steel , and US commercial grade steel pipe. (C) 1999 American Institute of Physic s. [S0021-8979(99)36908-5].