Phononic crystals(PnCs) can be designed to control and confine elastic *** present and use the optimization algorithm based on the two-stage genetic algorithm(GA) and the finite element method(FEM) to carry out the ba...
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Phononic crystals(PnCs) can be designed to control and confine elastic *** present and use the optimization algorithm based on the two-stage genetic algorithm(GA) and the finite element method(FEM) to carry out the band gap optimization of the two-dimensional(2D) solid-solid binary-component PnCs.
This paper focuses on the influence of the curvature on magnetoelectric effect of the piezoelectric(PE)/piezomagnetic(PM)three-layered composite ***,we set up a PE/PM three-layered composite cylinder ***,the governing...
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This paper focuses on the influence of the curvature on magnetoelectric effect of the piezoelectric(PE)/piezomagnetic(PM)three-layered composite ***,we set up a PE/PM three-layered composite cylinder ***,the governing equations for PE and PM layers are ***,we carry out the numerical studies of the magnetoelectric effect for harmonic driving case based on the obtained solutions.
In this paper,we analyze SH waves propagating in the layered structure consisting of a functionally graded piezoelectric(PE) layer and a piezomagnetic(PM) half-space,where the surface of the PE layer is electrically a...
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In this paper,we analyze SH waves propagating in the layered structure consisting of a functionally graded piezoelectric(PE) layer and a piezomagnetic(PM) half-space,where the surface of the PE layer is electrically and magnetically *** solution of the coupled fields and the dispersion relation are *** numerical results are given to show the effect of the gradient coefficient and thickness of a PE layer on the SH waves propagation.
In this paper,the SH wave propagation in a layered magneto-electric hollow cylinder is *** wave equations and system matrices for state vector are obtained for SH wave propagating along the circumferential *** is foun...
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In this paper,the SH wave propagation in a layered magneto-electric hollow cylinder is *** wave equations and system matrices for state vector are obtained for SH wave propagating along the circumferential *** is found that the propagation of SH wave is coupled to the electric and magnetic *** zero-order mode SHO is non-dispersive under the electrically open boundary,while it is dispersive under the electrically closed boundary,and it is the same for the piezomagnetic material.
This paper reviewed the methods,which calculate the pull strength during directional drilling crossing construction of oil pipeline,both at home and *** based on the analysis of these methods,the detailed research was...
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This paper reviewed the methods,which calculate the pull strength during directional drilling crossing construction of oil pipeline,both at home and *** based on the analysis of these methods,the detailed research was *** the same time,considering the peculiarity of this channel geologic structure and the technological requirements,the method,averaged standard method and unloading arch method,was given to calculate the maximal pull *** is practiced that,this method is instructive and meaningful to the directional drilling crossing construction.
The third-order approximation is employed to analyze the magnetoelectric composite *** axial displacement,the electric and magnetic potentials are assumed as piecewise linear function along the thickness-direction of ...
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The third-order approximation is employed to analyze the magnetoelectric composite *** axial displacement,the electric and magnetic potentials are assumed as piecewise linear function along the thickness-direction of the *** the conditions of zero transverse shear stress at the top and bottom surfaces and the continuity conditions at the interfaces,the expressions of the displacement can be obtained *** transverse displacement accounts for the piezoelectric and piezomagnetic *** governing equations are derived by using the variational *** present theory provides an efficient way in analyzing the magnetoelectric beams.
The two-dimensional problem of an impermeable circular-arc crack in an infinite electrostrictive solid subjected to pure electric loads at infinity is *** on Muskhelisvili's theory,explicit solutions are obtained ...
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The two-dimensional problem of an impermeable circular-arc crack in an infinite electrostrictive solid subjected to pure electric loads at infinity is *** on Muskhelisvili's theory,explicit solutions are obtained for an impermeable crack by taking Maxwell stress and electrical body force into *** model used in this paper shows that there is more than one singularity in pseudo total stress at the crack *** addition,numerical results are given to discuss the effects of electric field and central angle on the stress intensity factor.
The phase generated carrier(PGC) modulation-demodulation technique is the main demodulation technique for fiber interferometric *** are two methods to realize PGC *** method is inner modulation,and the other is extern...
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The phase generated carrier(PGC) modulation-demodulation technique is the main demodulation technique for fiber interferometric *** are two methods to realize PGC *** method is inner modulation,and the other is external ***,there is less study on the PGC external modulation than the PGC inner *** this paper,we focus on the PGC external modulation to analyze its *** experiment results indicate that the external demodulation performs ***,its cost is much lower than that of inner modulation.
Semi-analytical finite element method is applied to study the free vibration of multilayered,anisotropic magneto-electro-elastic plates.A series solution is assumed in the plane to satisfy the fixed boundary *** finit...
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Semi-analytical finite element method is applied to study the free vibration of multilayered,anisotropic magneto-electro-elastic plates.A series solution is assumed in the plane to satisfy the fixed boundary *** finite element procedure is adopted across the thickness of the *** the finite element model is derived based on the constitutive equation of magneto-electro-elastic *** components,electric potential and magnetic potential is taken as the nodal degree of *** numerical results are compared with the solutions in *** influence of magnetic-electro-elastic properties are studied.
In this work we studied propagation of B-G wave in a piezoelectric crystal of hexagonal symmetry in contact with viscous conductive *** dispersion relations are derived for both the metallized and exact electrical sol...
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In this work we studied propagation of B-G wave in a piezoelectric crystal of hexagonal symmetry in contact with viscous conductive *** dispersion relations are derived for both the metallized and exact electrical solid/liquid interface *** is found that acoustoelectric coupling and viscosity significantly affect acoustic wave propagation properties at a solid/liquid *** study provides essential data and theoretical foundation for the design and development of liquid phase sensors and biosensors.
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