The calculation of magnetization curves and magnetic hysteresis loops for a simplified model of a ferromagnetic body

The known expressions for magnetic energy associated with domain structures are used to calculate magnetization curves and magnetic hysteresis loops of polycrystalline ferromagnetic bodies when they are subjected to either tension or compression. Reversible and irreversible boundary displacement and domain rotation have been taken into account. The model used permits a qualitative description of the magnetization processes for ordinary magnetically soft materials, and materials with constricted and narrow hysteresis loops. This model has also been used for explaining the magnetoelastic properties of a ferromagnetic material.