Hao-Miao Zhou1,2, You-He Zhou1, Xiao-Jing Zheng1, Jing Wei3
CMC-Computers, Materials & Continua, Vol.12, No.3, pp. 237-250, 2009, DOI:10.3970/cmc.2009.012.237
Abstract From the viewpoint of energy, a general magnetoelastic coupling theory including magnetic forces and magnetostriction effects is proposed for deformable magnetized medium. Firstly, a Taylor series expansion of independent variables of stress and magnetization in the elastic Gibbs free energy function is applied to obtain a polynomial expression; and then based on the magnetoelastic coupling mechanism, appropriate transcendental functions are substituted for some terms in a polynomial constitutive relationship derived by way of substituting the polynomial Gibbs free energy function in thermodynamic equations to achieve a more compact magnetostrictive constitutive relationship. The numerical simulation exhibits that the predicted magnetostrictive strain… More >
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