On modelling and simulation of dielectric elastomer actuators via electrostatic-elastodynamic coupling

Conference contribution
(Conference Contribution)


Publication Details

Author(s): Schlögl T, Leyendecker S, Reitelshöfer S, Landgraf M, Yoo IS, Franke J
Publication year: 2014
Conference Proceedings Title: Proceedings of the IMSD
Language: English


Abstract


The aim of this work is to set up a numerical framework to characterise the deformation process and effective forces when voltage is applied to dielectric elastomer actuators (DEA). As with capacitors, when an external voltage is applied to the conductive layers, an electric field is established. Resulting Maxwell stresses lead to a contraction of the DEA. These effects are described by the Maxwell equations, the balance of momentum and constitutive material laws. Based on a model for non-linear electro-elasticity that covers the static case only, inertia terms are included in order to obtain a description of the deformation process depending on time. A potential energy function that is composed of Neo-Hooke material behaviour, electric field energy and coupling terms covers the material behaviour. Combined with the kinetic energy, a Lagrange function forms the basis in a variational setting of the model. Approximating the action integral using quadrature rules, discretising with finite elements in space and finite differences in time and applying a discrete version of Hamilton’s principle [9], a structure preserving integration scheme for DEAs is obtained and evaluated. 



FAU Authors / FAU Editors

Franke, Jörg Prof. Dr.-Ing.
Lehrstuhl für Fertigungsautomatisierung und Produktionssystematik
Landgraf, Maximilian
Lehrstuhl für Fertigungsautomatisierung und Produktionssystematik
Leyendecker, Sigrid Prof. Dr.-Ing.
Chair of Applied Dynamics
Reitelshöfer, Sebastian
Lehrstuhl für Fertigungsautomatisierung und Produktionssystematik
Schlögl, Tristan
Chair of Applied Dynamics
Yoo, In Seong
Lehrstuhl für Fertigungsautomatisierung und Produktionssystematik


How to cite

APA:
Schlögl, T., Leyendecker, S., Reitelshöfer, S., Landgraf, M., Yoo, I.S., & Franke, J. (2014). On modelling and simulation of dielectric elastomer actuators via electrostatic-elastodynamic coupling. In Proceedings of the IMSD. Busan, KR.

MLA:
Schlögl, Tristan, et al. "On modelling and simulation of dielectric elastomer actuators via electrostatic-elastodynamic coupling." Proceedings of the Proceedings of the 3rd Joint International Conference on Multibody System Dynamics IMSD, Busan 2014.

BibTeX: 

Last updated on 2018-09-08 at 23:24