Bifurcations in biaxially stretched highly non-linear materials under normal electric fields
ITE-Universitat Politècnica de València - Camino de Vera s/n E-46022, Valencia, Spain and Instituto Tecnológico de la Energía-Redit - Paterna, Spain
Received: 23 June 2014
Accepted: 24 September 2014
A study of the effect of the combined action of mechanical and electrical force fields in biaxially stretched slabs has been carried out. Samples of VHB 4910, a dielectric elastomer whose stress-strain behaviour can be fitted well to an Ogden constitutive equation, have been chosen. The analysis show that bifurcation appearance crucially depends on both the configuration of the system sample-electrodes and the parameters of the empirical model.
PACS: 61.30.Vx – Polymer liquid crystals / 83.80.Va – Elastomeric polymers
© EPLA, 2014