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Experimental and numerical investigations of the electro-viscoelastic behavior of VHB 4905TM

Markus Mehnert, Mokarram Hossain Orcid Logo, Paul Steinmann

European Journal of Mechanics - A/Solids, Start page: 103797

Swansea University Author: Mokarram Hossain Orcid Logo

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DOI (Published version): 10.1016/j.euromechsol.2019.103797

Abstract

Dielectric elastomers are a class of electro-active polymers (EAPs) that can be used for the development of simple soft actuators, sensors and energy harvesters. Their operation principle is based on the interaction of quasi-static electric charges in combination with soft dielectrics and deformable...

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Published in: European Journal of Mechanics - A/Solids
ISSN: 0997-7538
Published: 2019
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URI: https://cronfa.swan.ac.uk/Record/cronfa50648
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Abstract: Dielectric elastomers are a class of electro-active polymers (EAPs) that can be used for the development of simple soft actuators, sensors and energy harvesters. Their operation principle is based on the interaction of quasi-static electric charges in combination with soft dielectrics and deformable electrodes. Due to their ability to undergo large deformations with a time dependent material response of the underlying polymer, the mechanical behaviors of EAPs can be described by a finite strain viscoelastic material model [1]. This model is here augmented in order to account for the influence of the electro-mechanical coupling. In this contribution we pursue a comprehensive electro-mechanical characterization of the popular dielectric polymer VHB 4905™. In contrast to the results of the electro-mechanical experiments published previously [2] all of these experiments are conducted without the application of a pre-stretch and are therefore well suited for the identification of the coupling parameters of the material model. The presented model shows excellent agreements with experimental findings.
College: Faculty of Science and Engineering
Start Page: 103797

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