Permeability dependence of the effective magnetostriction of magnetostrictive composites

A model is presented in this article to investigate the dependence of effective magnetostriction of the magnetostrictive composites on the parameters of components including the elastic modulus, permeability, and volume fraction, etc. Concentrating on the two-component magnetostrictive composites and choosing the two components to be general magnetostrictive materials, this model yields, analytically, the effective magnetostriction of composites by means of the method of complex potential. In terms of the analysis of this model, the magnetostrictive composites can be roughly divided into two kinds. One kind is that the matrix material is nonmagnetic or a material with very low magnetostriction, in which the effective magnetostriction is independent of the permeability of components. Another kind is the case in which the two components have close magnetostriction, and the effective magnetostriction of the composites generally depends on the elastic and the magnetic parameters of both components and the vol...

[1]  D. Fang,et al.  Non-linear constitutive relations for magnetostrictive materials , 2003 .

[2]  Simon Busbridge,et al.  Effective magnetostriction and magnetomechanical coupling of terfenol-D composites , 2001 .

[3]  Gregory P. Carman,et al.  Large magnetostrictive response of Terfenol-D resin composites (invited) , 2000 .

[4]  W. Armstrong.  Nonlinear behavior of magnetostrictive particle actuated composite materials , 2000 .

[5]  R. McCallum,et al.  Effect of the elastic modulus of the matrix on magnetostrictive strain in composites , 1999 .

[6]  Simon Busbridge,et al.  Magnetomechanical coupling and elastic moduli of polymer-bonded Terfenol composites , 1998 .

[7]  C. Nan.  Effective magnetostriction of magnetostrictive composites , 1998 .

[8]  F. Pinkerton,et al.  Estimating the effective magnetostriction of a composite: A simple model , 1997 .

[9]  F. Pinkerton,et al.  Magnetostrictive SmFe2/metal composites , 1997 .

[10]  Zhigang Suo,et al.  Cracking in ceramic actuators caused by electrostriction , 1994 .

[11]  Pericles S. Theocaris,et al.  THE INCLUSION PROBLEM IN PLANE ELASTICITY , 1977 .

[12]  C. Graham,et al.  Introduction to Magnetic Materials , 1972 .

[13]  W. E. Warren,et al.  Some Problems in Two-Dimensional Electrostriction , 1966 .

[14]  R. J. Knops,et al.  TWO-DIMENSIONAL ELECTROSTRICTION , 1963 .

[15]  B. A. Calhoun,et al.  Ferromagnetic materials , 1955 .

[16]  S. Bednarek.  The giant magnetostriction in ferromagnetic composites within an elastomer matrix , 1999 .

[17]  Toshio Mura,et al.  Micromechanics of defects in solids , 1982 .

[18]  N. Hardiman.  ELLIPTIC ELASTIC INCLUSION IN AN INFINITE ELASTIC PLATE , 1954 .

[19]  M. Naimark,et al.  Some basic problems of the mathematical theory of elasticity , 1953 .