Surface Wave Speed of Functionally Graded Magneto-Electro-Elastic Materials with Initial Stresses

Li, Li; Wei, Peijun

doi:10.2478/jtam-2014-0016

Cited by 17 publications

(4 citation statements)

References 13 publications

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“…It is necessary to investigate the effects of the initial stresses on the wave propagation behaviour in functionally graded magnetic-electric-elastic materials and structures. Li et al [18] investigated the propagation behaviour of shear surface wave in a functionally graded magneto-electro-elastic half-space with initial stresses and discussed the effects of the initial stresses and material gradient index on the surface wave velocities.…”

Section: Introductionmentioning

confidence: 99%

Propagation of Surface Waves in a Homogeneous Layer of Finite Thickness over an Initially Stressed Functionally Graded Magnetic-Electric-Elastic Half-Space

Li¹,

Wei²

2015

Journal of Theoretical and Applied Mechanics

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The propagation behaviour of Love wave in an initially stressed functionally graded magnetic-electric-elastic half-space carrying a homogeneous layer is investigated. The material parameters in the substrate are assumed to vary exponentially along the thickness direction only. The velocity equations of Love wave are derived on the electrically or magnetically open circuit and short circuit boundary conditions, based on the equations of motion of the graded magnetic-electric-elastic material with the initial stresses and the free traction boundary conditions of surface and the continuous boundary conditions of interface. The dispersive curves are obtained numerically and the influences of the initial stresses and the material gradient index on the dispersive curves are discussed. The investigation provides a basis for the development of new functionally graded magneto-electro-elastic surface wave devices.

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Section: Introductionmentioning

confidence: 99%

Propagation of Surface Waves in a Homogeneous Layer of Finite Thickness over an Initially Stressed Functionally Graded Magnetic-Electric-Elastic Half-Space

Li¹,

Wei²

2015

Journal of Theoretical and Applied Mechanics

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“…Surface electro-elastic SH waves in a layered device with a piezoelectric substrate and a hard dielectric layer were described by Danoyan and Piliposian [11]. Li and Wei [12,13] encountered the pre-stressed and MEE solids' impact on the surface wave speed and velocity of FGMEE materials. In their study, Wu et al [14] used the modified Pagano approach to analyze the three-dimensional static behavior of FGMEE plates.…”

Section: Introductionmentioning

confidence: 99%

SH-Wave Propagation in Functionally Graded Magneto-Electro-Elastic Substrate at Irregular Boundaries

Kulandhaivel,

Kumar

2024

MMEP

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The current study examines the behavior of an SH wave traveling over a functionally graded magneto-elastic substrate arrangement. At the substrate-vacuum interface, two irregularities with different shapes-rectangular and parabolically shaped-are considered in electrically and magnetically open cases and electrically and magnetically short cases. A study is also done on the combined impact of inhomogeneity, depth source, and irregularity. With the help of the Fourier transform, inverse Fourier transform, and perturbation technique, complex frequency relation has been derived for each type of irregular interface. The results' key characteristics are highlighted. In order to know the impact of the parameters involved, a particular model consisting of BaTiO3-CoFe2O4 magneto-electro-elastic material has been taken. The findings were presented in the form of graphs, which were created using Mathematica 7. Graphs are plotted for variations in wavenumber and phase velocity. This calculation model could be the ideal match for laminated FGMEE structures utilized as surface acoustic wave devices since the variation of the film's magneto-electromechanical characteristics changes gradually with depth and throughout the production process (SAW). As a result, it can serve as a theoretical foundation for the design of high-performance SAW devices.

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“…In recent years, many authors are of a great interest to the wave propagation research of MEE materials. For examples, Li [11] investigated the shear surface wave at the free traction surface of half in finite functionally graded MEE material with initial stress. The velocity equations of shear surface wave are derived on the electrically or magnetically open circuit and short circuit boundary conditions, based on the equations of motion of the graded magneto-electro-elastic material with the initial stresses and the free traction boundary conditions.…”

Section: Introductionmentioning

confidence: 99%

A dispersion equation of Rayleigh-type waves in transversely isotropic nonlocalmagneto-electro-elastic solids half-space

Xuan

2022

Preprint

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The purpose of this research is to present the dispersion equation of Rayleigh-type waves in transversely isotropic nonlocal magneto-electro-elastic (MEE) half-space. First, the characteristic equation in nonlocal MEE halfs-pace are derived from the constitutive equations and the form solution. Then, the dispersion equation which surface wave speed satisfies is derived from the free traction condition on the surface of half-space with consideration of electrically and magnetically short/open circuit conditions. Finally, based on the obtained dispersion equation, the influence of boundary conditions are investigated in this paper. Moreover, the dependence of velocities of plane waves on the direction of propagation as well as nonlocality parameter has been also illustrated.

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Surface Wave Speed of Functionally Graded Magneto-Electro-Elastic Materials with Initial Stresses

Cited by 17 publications

References 13 publications

Propagation of Surface Waves in a Homogeneous Layer of Finite Thickness over an Initially Stressed Functionally Graded Magnetic-Electric-Elastic Half-Space

Propagation of Surface Waves in a Homogeneous Layer of Finite Thickness over an Initially Stressed Functionally Graded Magnetic-Electric-Elastic Half-Space

SH-Wave Propagation in Functionally Graded Magneto-Electro-Elastic Substrate at Irregular Boundaries

A dispersion equation of Rayleigh-type waves in transversely isotropic nonlocalmagneto-electro-elastic solids half-space

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