Characterization of rectangular and cylindrical piezoceramics using three dimensional modelling

cited By 0International audienceThis paper is devoted to piezoceramic characterization using 3D-modelling. It is applied on Navy III and Navy II elements. The influence of coupling on resonance frequencies is analysed. It is shown that velocities are independent of the element dimensions and coupling is asymmetrical because it is generated by elastic constants (Formula presented.). Characterization is described and the determination of six elastic constants (Formula presented.), two piezoelectric coefficients (e31, e33) and permittivity (Formula presented.) is explained. Calculation needs only one element: parallelepiped or cylindrical. The error made on resonance frequencies using 1D-models is deduced and can reach 20% when certain element shapes are employed. © 2016 Taylor & Francis Group, LLC