Wave propagation in multilayered piezoelectric structures has received much
attention in past forty years. But the research objects of previous research works are
almost only for semi-infinite structures and one-dimensional structures, i.e.,
structures with a finite dimension in only one direction, such as horizontally infinite
flat plates and axially infinite hollow cylinders. This paper proposes a double
orthogonal polynomial series approach to solve the wave propagation in a
two-dimensional (2-D) layered piezoelectric structure, namely, a multilayered
piezoelectric ring with a rectangular cross-section. Through numerical comparison
with the available reference results for a purely elastic multilayered rectangular
straight bar, the validity of the double polynomial series approach is illustrated.
The dispersion curves and electric potential distributions of various layered
piezoelectric rectangular rings with different material stacking directions, different
polarization directions, different radius to thickness ratios, and different
width to thickness ratios are calculated to reveal their wave propagation
characteristics.
University of Lille Nord de
France
F-59000 Lille
France
and
UVHC, IEMN-DOAE, F-59313 Valenciennes Cedex 9, France
and
CNRS, UMR 8520, F-59650 Villeneuve d’Ascq, France