Accurate methods for piezocomposite material assessment

Abstract

An experimental characterization method based on the transmission coefficient inversion is presented. Measurements performed on a thin piezoelectric ceramic plate and a passive filler material were first analyzed. A 1-3 piezocomposite plate was then manufactured from these two materials and its properties were measured through the same iterative process. In parallel, a theoretical homogenization method of 1-3 periodic piezocomposite is presented. This method uses the Plane Wave Expansion model, namely the P.W.E., to determine the effective electromechanical tensor of the homogenized piezocomposite. The electromechanical tensor experimentally obtained was compared to the theoretical homogenized one and good agreement was observed.