Guided wave propagation in cylindrical structures with sector cross-sections

Zhang, B.; Yu, Jiangong; Zhang, X. M.

doi:10.1007/s00419-017-1237-x

Cited by 5 publications

(1 citation statement)

References 20 publications

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“…Here, the function I ( r , θ ) [32] is introduced into Equation (1), to automatically satisfy the traction-free and open-circuit boundary conditions, which can be denoted as follows: {Trr=Trθ=Trz=Dr=Br=0, r=a and r=bTθθ=Trθ=Tθz=Dθ=Bθ=0, θ=0 and θ=α.…”

Section: Mathematics and Formulationmentioning

confidence: 99%

Magneto-Electric Effect on Guided Waves in Functionally Graded Piezoelectric–Piezomagnetic Fan-Shaped Cylindrical Structures

Zhang

Elmaimouni

et al. 2018

Materials

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Functionally graded piezoelectric–piezomagnetic (FGPP) material simultaneously consists of piezomagnetic and piezoelectric phases, which are able to convert energy among mechanical, electric, and magnetic fields. The magneto-electric effect on waves in FGPP fan-shaped cylindrical structures is studied by exploiting the double Legendre orthogonal polynomial method. By means of the Heaviside function, the initial conditions are brought into wave motion equations. Dispersion properties, electric and magnetic potential, and the Poynting vector are calculated. Subsequently, the effect of the graded variation and geometric size on wave characteristics is analyzed. The FGPP fan-shaped cylindrical structures are of complex geometrical shape and material inhomogeneity, so their influences on the magneto-electric effect are the focus of discussion. Results reveal that the cut-off frequencies have a negative relationship with the cross-section area of the structure. The magneto-electric effect could be adjusted via altering the geometric size of the cross-section. These results can be utilized to design and optimize piezoelectric–piezomagnetic fan-shaped transducers.

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