Effective properties of three-phase electro-magneto-elastic multifunctional composite materials Conference Paper uri icon


  • Coupling between the electric field, magnetic field, and strain of composite materials is achieved when electro-elastic (piezoelectric) and magneto-elastic (piezomagnetic) particles are joined by an elastic matrix. Although the matrix is neither piezoelectric nor piezomagnetic, the strain field in the matrix couples the E field of the piezoelectric phase to the B field of the piezomagnetic phase. This three-phase electro-magneto-elastic composite should have greater ductility and formability than a two-phase composite in which E and B are coupled by directly bonding two ceramic materials with no compliant matrix. A finite element analysis and homogenization of a representative volume element is used to determine the effective electric, magnetic, mechanical, and coupled-field properties of an elastic (epoxy) matrix reinforced with piezoelectric and piezomagnetic fibers. The effective magnetoelectric moduli of this three-phase composite are, however, less than the effective magnetoelectric coefficients of a two-phase piezoelectric/piezomagnetic composite, because the epoxy matrix is not stiff enough to transfer significant strains between the piezomagnetic and piezoelectric fibers.

name of conference

  • Smart Structures and Materials 2003: Active Materials: Behavior and Mechanics

published proceedings


author list (cited authors)

  • Lee, J., Boyd, J. G., & Lagoudas, D. C.

citation count

  • 3

complete list of authors

  • Lee, J||Boyd, JG||Lagoudas, DC

editor list (cited editors)

  • Lagoudas, D. C.

publication date

  • August 2003