relation: http://eprints.imtlucca.it/3675/
title: Auxetic behavior and acoustic properties of microstructured piezoelectric strain sensors
creator: De Bellis, Maria Laura
creator: Bacigalupo, Andrea
subject: T Technology (General)
subject: TJ Mechanical engineering and machinery
description: The use of multifunctional composite materials adopting piezo-electric periodic cellular lattice structures with auxetic elastic behavior is a recent and promising solution in the design of piezoelectric sensors. In the present work, periodic anti-tetrachiral auxetic lattice structures, characterized by different geometries, are taken into account and the mechanical and piezoelectrical response are investigated. The equivalent piezoelectric properties are obtained adopting a first order computational homogenization approach, generalized to the case of electro-mechanical coupling, and various polarization directions are adopted. Two examples of in-plane and out-of-plane strain sensors are proposed as design concepts. Moreover, a piezo-elasto-dynamic dispersion analysis adopting the Floquet–Bloch decomposition is performed. The acoustic behavior of the periodic piezoelectric material with auxetic topology is studied and possible band gaps are detected.
publisher: IOPScience
date: 2017
type: Article
type: PeerReviewed
format: application/pdf
language: en
rights: cc_by_nc
identifier: http://eprints.imtlucca.it/3675/1/1703.01144.pdf
identifier:   De Bellis, Maria Laura and Bacigalupo, Andrea  Auxetic behavior and acoustic properties of microstructured piezoelectric strain sensors.  Smart Materials and Structures, 26 (8).  085037.  ISSN 0964-1726      (2017)  
relation: https://doi.org/10.1088/1361-665X/aa7772
relation: 10.1088/1361-665X/aa7772