Prof Andreas Menzel UK, Department of Mechanical Engineering, TU Dortmund, Germany

Modelling and simulation of electroactive polymers
When Jan 14, 2019
from 02:00 PM to 03:00 PM
Where LR1, Thom Building
Contact Name
Contact Phone +44 (0) 1865 273030
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Dielectric elastomers belong to the group of so-called electroactive polymers, which can transform electric energy to mechanical energy. VHB 4910 is a popular material within the group of dielectric elastomers. The micromechanically motivated constitutive model discussed in this presentation includes time-dependent behaviour in the context of eletcro-viscoelastic response. In particular, a non-affine microsphere framework is elaborated to transform statistical physics based constitutive models to a macroscopic continuum framework. The electromechanically coupled model is calibrated to experimental data for states under homogeneous and inhomogeneous deformations. Representative finite element examples show the applicability of the framework proposed which, as a long term goal, may contribute to the improvement of the design of dielectric
elastomer based devices.