Open AccessSome thermodynamic aspects of viscoplasticity of ferromagnetic
Author(s) -
Milan V. Mićunović
Publication year - 2002
Publication title -
facta universitatis. series electronics and energetics/facta universitatis. series: electronics and energetics
Language(s) - English
Resource type - Journals
eISSN - 2217-5997
pISSN - 0353-3670
DOI - 10.2298/fuee0202195m
Subject(s) - viscoplasticity , ferromagnetism , isotropy , magnetization , materials science , tensor (intrinsic definition) , condensed matter physics , classical mechanics , constitutive equation , physics , thermodynamics , mathematics , magnetic field , finite element method , geometry , quantum mechanics
The paper deals with viscoplasticity of ferromagnetic materials. Tensor representation is applied to a set of evolution equations comprising the plastic stretching and residual magnetization tensors. Small magneto elastic strains of isotropic insulators are considered in detail in two special cases of finite as well as small plastic strain. A special emphasis is given to piezomagnetism effects in the case of uniaxial cycling strain. Vakulenko's irreversible thermodynamics is applied to irreversible magnetic phenomena by means of a hereditary evolution function. Purely mechanical as well as purely magnetic irreversible phenomena are considered in detail.