Layered versus multiphase magneto-electro-elastic composites

An analytical solution for the magneto-electro-elastic bimorph beam forced vibrations problem

“…The effects on the magneto-electric coupling strength of the sintering temperature, volume fraction of piezoelectric and piezomagnetic phases, layers arrangement and thickness ratio, as well as of the magnetostriction direction and the bias magnetic field have been investigated both experimentally and theoretically [7,[9][10][11][12][13][14][15][16]. The aforementioned investigations revealed the better magneto-electric coupling of the laminated configuration that began to be widely studied and developed as an effective smart device [8].…”

“…where c and c 44 are elastic stiffness constants, ε and μ are the dielectric constant and magnetic permeability, respectively, e and e 14 represent the piezoelectric constants while the piezomagnetic coupling is expressed by the constitutive constants d and d 14 ; the last material constant η is representative of the magneto-electric coupling characteristic of the magneto-electro-elastic composite material. The complete constitutive relationships for a transversely isotropic magneto-electro-elastic material having electric and magnetic poling directions along the y-axis are listed in appendix A, where the expressions used to compute the constitutive constants for a monodimensional structure are also reported.…”

“…Bhangale and Ganesan [30] derived a hybrid formulation for analyzing the free vibrations problem of magneto-electro-elastic functionally graded cylindrical shells, by using series expansions in the circumferential and axial directions and finite elements in the radial one. A FE model has been used by Buchanan [14,31] to study the multilayer and multiphase magneto-electro-elastic materials response. Lage and co-workers [32] derived a mixed finite element approach, on the basis of the mixed Reissner variational principle, to model magneto-electro-elastic plates.…”

Thermal Vibration of Magnetostrictive Material in Laminated Plates by the GDQ Method

“…They obtained the elastic displacements, electric potential, and magnetic potential numerical solutions. In 2004, Buchanan presented the candidate materials of multiphase magneto-electro-elastic composites [5]. They found the multiphase material properties vary depending upon the ratio of fiber material to matrix material.…”

Transient Dynamic Behavior of Two Phase Magneto-Electro-Elastic Sensors Bonded to Elastic Rectangular Plates

“…Fibrous composites consisting of piezomagnetic cobalt iron oxide (CoFe 2 O 4 ) matrix reinforced by piezoelectric barium titanate (BaTiO 3 ) fibers [1] are analyzed for the sensory response. Both phases are transversely isotropic with the axis of symmetry oriented in the z-direction.…”