On rate-dependent dissipation effects in electro-elasticity
arXiv:1502.02479 · doi:10.1016/j.ijnonlinmec.2014.02.002
Abstract
This paper deals with the mathematical modelling of large strain electro-viscoelastic deformations in electro-active polymers. Energy dissipation is assumed to occur due to mechanical viscoelasticity of the polymer as well as due to time-dependent effective polarisation of the material. Additive decomposition of the electric field and multiplicative decomposition of the deformation gradient are proposed to model the internal dissipation mechanisms. The theory is illustrated with some numerical examples in the end.