Modelling of Thermal Breakdown in Dielectric Elastomers

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Abstract

Several electrical aging mechanisms are known to occur during operation of dielectric elastomers; some cause fast breakdown while others cause slow degradation of the dielectric elastomer. One of the most significant fast aging mechanisms is thermal breakdown. Thermal breakdown initiates when the heat produced within the elastomer, mainly joule heating, exceeds the heat loss to the surroundings. This may be either locally or macroscopically.
We strive to enhance the understanding of thermal breakdown in dielectric elastomer by performing numerical simulation of the actuation of dielectric elastomer transducers in stacked configuration. Multiple simulations using experimental data for PDMS have been performed using COMSOL Multiphysics, from which the key parameters affecting thermal breakdown have been identified. In this presentation we will present the findings and identify the optimal operating conditions for a PDMS dielectric elastomer in order to minimize thermal breakdown.
Original languageEnglish
Publication date2017
Number of pages1
Publication statusPublished - 2017
Event7th International Conference on Electromechanically Active Polymer (EAP) Transducers & Artificial Muscles (EuroEAP 2017) - Cartagena, Spain
Duration: 6 Jun 20177 Jun 2017

Conference

Conference7th International Conference on Electromechanically Active Polymer (EAP) Transducers & Artificial Muscles (EuroEAP 2017)
CountrySpain
CityCartagena
Period06/06/201707/06/2017

Cite this

Madsen, L. R., Hassager, O., & Skov, A. L. (2017). Modelling of Thermal Breakdown in Dielectric Elastomers. Abstract from 7th International Conference on Electromechanically Active Polymer (EAP) Transducers & Artificial Muscles (EuroEAP 2017), Cartagena, Spain.