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Electric Field-induced Surface Transformations and Experimental Dynamic Characteristics of Dielectric Elastomer Membranes by J.W. Fox; N.C. Goulbourne is a Engineering article available to read on EtoBox.

What is Electric Field-induced Surface Transformations and Experimental Dynamic Characteristics of Dielectric Elastomer Membranes about?

Acute and tunable surface transformations of a monolithic structure by application of an electric field have immediate significance for adaptive structures, morphing concepts and optical applications. Dielectric elastomer (DE) membranes are electric fieldresponsive materials typically employed as large strain electrostatic actuators. In this paper, it is demonstrated that an electric field will generate several symmetric surface shapes analogous to the mode shapes in the classical drumhead or stretched membrane problem. In a previous experimental study, a single surface transformation creating ripples or waves on an initially smooth surface was observed for an electrically excited DE membrane. The unexpected result led to the development of an experimental setup that would facilitate extensive characterization of the dynamic surface transformations of dielectric elastomer membranes. The new results clearly show that the electric field can be used to tune the patterns of the DE surface. Furthermore, the membrane will go through resonance when a periodic electric field is applied if the system conditions are favorable, which has not been observed before now. This presents a unique op

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Author

J.W. Fox; N.C. Goulbourne

Publisher

Elsevier Science; Elsevier ; Elsevier Ltd.; Elsevier BV (ISSN 0022-5096)

Published

2009

Language

EN

Field

Engineering (Physical Sciences)