Modelling of Thermal Breakdown in Dielectric Elastomers

Research output: Chapter in Book/Report/Conference proceedingConference abstract in proceedings – Annual report year: 2018Researchpeer-review

Standard

Modelling of Thermal Breakdown in Dielectric Elastomers. / Madsen, Line Riis; Skov, Anne Ladegaard; Hassager, Ole.

Book of Abstracts. Department of Chemical and Biochemical Engineering, 2017. p. 40 OL19.

Research output: Chapter in Book/Report/Conference proceedingConference abstract in proceedings – Annual report year: 2018Researchpeer-review

Harvard

Madsen, LR, Skov, AL & Hassager, O 2017, Modelling of Thermal Breakdown in Dielectric Elastomers. in Book of Abstracts., OL19, Department of Chemical and Biochemical Engineering, pp. 40, 11th International Workshop on Silicone Polymers 2017 (ISPO 2017), Snekkersten, Denmark, 02/07/2017.

APA

Madsen, L. R., Skov, A. L., & Hassager, O. (2017). Modelling of Thermal Breakdown in Dielectric Elastomers. In Book of Abstracts (pp. 40). [OL19] Department of Chemical and Biochemical Engineering.

CBE

Madsen LR, Skov AL, Hassager O. 2017. Modelling of Thermal Breakdown in Dielectric Elastomers. In Book of Abstracts. Department of Chemical and Biochemical Engineering. pp. 40.

MLA

Madsen, Line Riis, Anne Ladegaard Skov, and Ole Hassager "Modelling of Thermal Breakdown in Dielectric Elastomers". Book of Abstracts. Department of Chemical and Biochemical Engineering. 2017, 40.

Vancouver

Madsen LR, Skov AL, Hassager O. Modelling of Thermal Breakdown in Dielectric Elastomers. In Book of Abstracts. Department of Chemical and Biochemical Engineering. 2017. p. 40. OL19

Author

Madsen, Line Riis ; Skov, Anne Ladegaard ; Hassager, Ole. / Modelling of Thermal Breakdown in Dielectric Elastomers. Book of Abstracts. Department of Chemical and Biochemical Engineering, 2017. pp. 40

Bibtex

@inbook{fa68ffd85dc34767850500ce8944e1a5,
title = "Modelling of Thermal Breakdown in Dielectric Elastomers",
abstract = "Dielectric elastomers are a promising category of smart materials, which may find application within many fields such as soft robotics, wave-energy harvesting and loud speakers [1]. A dielectric elastomer consists of a thin, stretchable polymer film sandwiched between two compliant electrodes. When an external voltage is applied to the electrodes, an electrostatic pressure across the elastomer is generated, which will cause the electrodes to attract one another. Thereby the thickness of the elastomer is decreased and the cross sectional area of the elastomer is increased. When the voltage is switched off, the elastomer regenerates its original shape.Several electrical aging mechanisms are known to occur during operation; 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 [2].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.",
author = "Madsen, {Line Riis} and Skov, {Anne Ladegaard} and Ole Hassager",
year = "2017",
language = "English",
pages = "40",
booktitle = "Book of Abstracts",
publisher = "Department of Chemical and Biochemical Engineering",

}

RIS

TY - ABST

T1 - Modelling of Thermal Breakdown in Dielectric Elastomers

AU - Madsen, Line Riis

AU - Skov, Anne Ladegaard

AU - Hassager, Ole

PY - 2017

Y1 - 2017

N2 - Dielectric elastomers are a promising category of smart materials, which may find application within many fields such as soft robotics, wave-energy harvesting and loud speakers [1]. A dielectric elastomer consists of a thin, stretchable polymer film sandwiched between two compliant electrodes. When an external voltage is applied to the electrodes, an electrostatic pressure across the elastomer is generated, which will cause the electrodes to attract one another. Thereby the thickness of the elastomer is decreased and the cross sectional area of the elastomer is increased. When the voltage is switched off, the elastomer regenerates its original shape.Several electrical aging mechanisms are known to occur during operation; 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 [2].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.

AB - Dielectric elastomers are a promising category of smart materials, which may find application within many fields such as soft robotics, wave-energy harvesting and loud speakers [1]. A dielectric elastomer consists of a thin, stretchable polymer film sandwiched between two compliant electrodes. When an external voltage is applied to the electrodes, an electrostatic pressure across the elastomer is generated, which will cause the electrodes to attract one another. Thereby the thickness of the elastomer is decreased and the cross sectional area of the elastomer is increased. When the voltage is switched off, the elastomer regenerates its original shape.Several electrical aging mechanisms are known to occur during operation; 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 [2].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.

M3 - Conference abstract in proceedings

SP - 40

BT - Book of Abstracts

PB - Department of Chemical and Biochemical Engineering

ER -