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Proceedings Paper

Mechanical modeling of interpenetrating polymer network reinforced acrylic elastomer
Author(s): Arne Schmidt; Andrea Bergamini; Gabor Kovacs; Edoardo Mazza
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Paper Abstract

Interpenetrating polymer network reinforced acrylic elastomers (IPN) offer outstanding performance in free-standing contractile dielectric elastomer actuators. This work presents the verification of a recently proposed material model for a VHB 4910 based IPN [1]. The 3D large strain material model was determined from extensive data of multiaxial mechanical experiments and allows to account for the variations in material composition of IPN-membranes. We employed inflation tests to membranes of different material composition to study the materials response in a stress state different from the one that was used to extract the material parameters. By applying the material model to finite element models we successfully validated the material model in a range of material compositions typically used for dielectric elastomer actuator applications. In combination with a characterization of electro-mechanical coupling, this 3D large strain model can be used to model IPN-based dielectric elastomer actuators.

Paper Details

Date Published: 9 April 2010
PDF: 9 pages
Proc. SPIE 7642, Electroactive Polymer Actuators and Devices (EAPAD) 2010, 76421O (9 April 2010); doi: 10.1117/12.847505
Show Author Affiliations
Arne Schmidt, EMPA (Switzerland)
Andrea Bergamini, EMPA (Switzerland)
Gabor Kovacs, EMPA (Switzerland)
Edoardo Mazza, ETH Zurich (Switzerland)

Published in SPIE Proceedings Vol. 7642:
Electroactive Polymer Actuators and Devices (EAPAD) 2010
Yoseph Bar-Cohen, Editor(s)

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