This proceedings contains 109 papers selected from presentations at the 2012 Symposium on Piezoelectricity,Acoustic Waves,and Device Applications(SPAWDA 2012),which was successfully held during November23-25,2012 at S...
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This proceedings contains 109 papers selected from presentations at the 2012 Symposium on Piezoelectricity,Acoustic Waves,and Device Applications(SPAWDA 2012),which was successfully held during November23-25,2012 at Shanghai Jiao Tong University,Shanghai,*** is an interdisciplinary,multi-field,and industry-focused technical forum with international flavor,which has been rapidly growing in recent years.
In this paper,the Lekhnitskii solutions for the cylindrical bending of the magneto-electro-elastic composite laminates with an elliptic hole are obtained using the classical Mushhehshvili-Lekhnitskii complex variable ...
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In this paper,the Lekhnitskii solutions for the cylindrical bending of the magneto-electro-elastic composite laminates with an elliptic hole are obtained using the classical Mushhehshvili-Lekhnitskii complex variable method and exact boundary *** to the results of the numerical calculation,it is found that the stress concentration near the hole depends on the material constants and the hole geometry.
The equivalent circuit model of piezoelectric ceramic pillar transducer with matching layer material is proposed,and the applicability of this model in the U-shape transducer array is *** vibration character and direc...
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The equivalent circuit model of piezoelectric ceramic pillar transducer with matching layer material is proposed,and the applicability of this model in the U-shape transducer array is *** vibration character and directivity pattern of the transducer are analyzed by the finite element *** manufactured U-shape transducer array has verified feasibility of the piezoelectric ceramic pillar transducer with matching layer *** broadband and high power density characters of such design are suitable for high frequency broadband acoustic emission with special directivity.
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,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.
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.
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.
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