A mixture model for magneto-rheological materials

Autor:	C.S. Yeh, K.C. Chen
Rok vydání:	2002
Předmět:	Physics Continuum (measurement) General Physics and Astronomy Acoustic wave Mechanics Dissipation Extended irreversible thermodynamics Magnetic field Mixture theory Mechanics of Materials Magnetorheological fluid General Materials Science Statistical physics Continuum hypothesis
Zdroj:	Continuum Mechanics and Thermodynamics. 14:495-510
ISSN:	1432-0959 0935-1175
DOI:	10.1007/s001610200085
Popis:	To model the response of magnetorheological (MR) materials, a continuum theory for a mixture consisting of a fluid continuum and a solid one is developed. In this mixture theory, the structure composed of the magnetizable particles in MR fluids is treated as a solid continuum. The aim of this paper is two-fold. Firstly, we adopt the extended irreversible thermodynamics (EIT) approach as the thermodynamic framework to formulate the general dynamic equations of MR mixtures. Introducing the concept of plastic deformation of the solid continuum, the mechanisms of dissipation are discussed and the evolution equations for the fluxes are derived. Secondly, by virtue of this derivation we study the propagation of an acoustic wave through the MR fluids. This study shows that there exist two longitudinal acoustic waves propagating along the direction of an applied magnetic field.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::bae62cafa8deced7c4a7ab593819e0e1 https://doi.org/10.1007/s001610200085 Zobrazit plný text záznamu Full text from SpringerLink