Effect of topological imperfections on the electro‐mechanical properties of structured piezoelectric particulate composites

Stanley van Kempen, Hamideh Khanbareh, Wilhem Albert Groen, Jan Hol, Sybrand van der Zwaag

Research output: Contribution to journalArticle

Abstract

A novel method based on the Virtual Particle Mori–Tanaka (VPMT) is developed to predict the effective electro‐elastic properties, d 33 and g 33, of structured piezoelectric particulate composites with improved accuracy by means of a single parameter related to the spatial distribution of imperfectly aligned rod‐like PZT particles. The VPMT method is found to have excellent prediction capabilities for idealized particle configurations. Several new correction functions are presented to capture the drop in piezoelectric composite's electro‐elastic properties as a function of topological imperfections. These imperfections are related to longitudinal and lateral inter‐particle spacings and the topology of the chain like structures themselves. The functions are evaluated in detail and show physically consistent behaviour.
Original languageEnglish
Article number014004
JournalJournal of Physics: Materials
Volume3
Issue number1
Early online date24 Oct 2019
DOIs
Publication statusPublished - 22 Nov 2019

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