Eur. Phys. J. Appl. Phys. (2015) 70: 20902
https://doi.org/10.1051/epjap/2015150055

Some aspects of coupled electrical-mechanical effects in dielectric materials^*

¹ Université de Toulouse, UPS, INPT, LAPLACE (Laboratoire Plasma et Conversion d’Énergie), 118 route de Narbonne, 31062 Toulouse cedex 9, France
² CNRS, LAPLACE, 31062 Toulouse, France

^a e-mail: gilbert.teyssedre@laplace.univ-tlse.fr

Received: 29 January 2015
Revised: 31 March 2015
Accepted: 1 April 2015
Published online: 19 May 2015

Abstract

The propensity of electrically insulating materials to generate/store electrical charges leads to a panel of electromechanical phenomena that can be either exploited in applications relevant to electrical engineering, or represent limitations in the performance of insulating materials. The aim of this contribution is to describe various features of these electrical-mechanical coupling phenomena with focus on the field-induced strain measurement of charged polymers, on the charge distribution measurement by pulsed electroacoustic method and on the contribution of electromechanical effects in electrical ageing phenomena.