Rate dependent stress-stretch relation of dielectric elastomers subjected to pure shear like loading and electric field

Shaoxing Qu, Ke Li, Tiefeng Li, Hanqing Jiang, Miao Wang, Zhenhua Li

Research output: Contribution to journalArticlepeer-review

20 Scopus citations

Abstract

The performance of dielectric elastomer (DE) transducers is significantly affected by viscoelastic relaxation-induced electromechanical dissipations. This paper presents an experimental study to obtain the rate dependent stress-stretch relation of DE membranes (VHB TM 9473) subjected to pure shear like loading and electric loading simultaneously. Stretching rate dependent behavior is observed. The results also show that the tensile force decreases as the voltage increases. The observations are compared with predictions by a viscoelastic model of DE. This experiment may be used for further studies of dynamic electromechanical coupling properties of DEs.

Original languageEnglish (US)
Pages (from-to)542-549
Number of pages8
JournalActa Mechanica Solida Sinica
Volume25
Issue number5
DOIs
StatePublished - Oct 1 2012

Keywords

  • dielectric elastomer
  • electromechanical coupling
  • membranes
  • viscoelastic

ASJC Scopus subject areas

  • Computational Mechanics
  • Mechanics of Materials
  • Mechanical Engineering

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