Accuracy in modeling the acoustic wave equation with Chebyshev spectral finite elements
Finite Elements in Analysis and Design
Chebyshev spectral-finite element method for three-dimensional unsteady Navier-Stokes equation
Applied Mathematics and Computation
Finite Elements in Analysis and Design
Propagation of in-plane waves in an isotropic panel with a crack
Finite Elements in Analysis and Design
Propagation of in-plane elastic waves in a composite panel
Finite Elements in Analysis and Design
Certain numerical issues of wave propagation modelling in rods by the Spectral Finite Element Method
Finite Elements in Analysis and Design
Vibration band gap behaviors of sandwich panels with corrugated cores
Computers and Structures
Journal of Computational Physics
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This paper presents a novel formulation of a spectral plate finite element for analysis of propagation of elastic waves in isotropic plate structures. In this formulation of the spectral plate finite element as approximation functions Chebyshev polynomials of the first kind are employed. The element makes use of on an extended form of the displacement field that enables one to investigate selectively or simultaneously both symmetric and anti-symmetric modes of Lamb waves propagating in plate structures. Also the dispersion relations associated with the extended displacement field are presented and discussed in the paper. The effectiveness of the new spectral plate finite element is illustrated on examples of propagation of elastic waves in a flat aluminium panel in the case of the fundamental symmetric and anti-symmetric modes of Lamb waves.