Analysis of multilayer electro-active spherical balloons

Bortot, Eliana (2017) Analysis of multilayer electro-active spherical balloons. Journal of the Mechanics and Physics of Solids, 101. pp. 250-267. ISSN 0022-5096

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Abstract

An electro-active spherical balloon is susceptible to electromechanical instability which, for certain material models, can trigger substantial size change. Hence, the electro-active balloon can conveniently be employed for application as actuator or generator. Practical applications, however, require proper electrode protection from aggressive agents and electric safety. For this purpose, the active membrane can be sandwiched between two soft protective passive layers. In this paper, the theory of nonlinear electro-elasticity for heterogeneous soft dielectrics is applied to the investigation of the electromechanical response of multilayer electro-active spherical balloons, formed either by the active membrane only (single-layer balloon) or by the coated active membrane (multilayer balloon). Numerical results showing the influence of the soft passive layers on the electromechanical response of the active membrane are presented.

Item Type:	Article
Uncontrolled Keywords:	Finite electro-elasticity, Electro-active polymers, Dielectric elastomers, Electromechanical instability, Composite material, Multilayer electro-active balloon, Passive layers
Subjects:	F300 Physics J500 Materials Technology not otherwise specified
Department:	Faculties > Engineering and Environment > Mechanical and Construction Engineering
Depositing User:	Paul Burns
Date Deposited:	04 Apr 2019 13:36
Last Modified:	10 Oct 2019 20:45
URI:	http://nrl.northumbria.ac.uk/id/eprint/38754

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