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Application of a Viscoelastic Material Model in Electro‐Mechanics

In this contribution, the numerical modeling of electro‐viscoelastic material is considered. The electro‐mechanical problem formulated in terms of a symmetrized stress tensor is extended to a viscoelastic material model. For the incorporation of the viscosity model, the logarithmic strain space setting is utilized which mimics the small strain setting. Therefore a rheological model for viscosity from the geometrically linear theory can be used. Numerical examples for a typical uniaxial tensile test show the capability of the method to demonstrate typical relaxation and creep behavior. (© 2010 Wiley‐VCH Verlag GmbH & Co. KGaA, Weinheim)