- Conference date: 10–12 January 2008
- Location: IIT Madras, Chennai (India)
Electro‐active polymers (EAP) are “smart materials” whose mechanical properties may be changed significantly by the application of electric field. Hence, these materials can serve as actuators in electro‐mechanical systems, artificial muscles, etc. In this paper, we provide a generalized continuum framework basis for the characterization of the nonlinear electroelastic properties of these materials. This approach introduces new strain and stress measures which lead to the formulation of a corresponding generalized variational principle. The theory is then completed by Dirichlet boundary conditions for the displacement field and the electric potential and then derivatives normal to the boundary. The basic idea behind this generalized continuum framework is the consideration of a micro‐ and a macro‐space which together span the generalized space. All quantities including the constitutive law for the electro‐mechanically coupled nonlinear hyperelasticity are defined in the generalized space. Numerical examples are presented to demonstrate the numerical accuracy of the implemented formulation using the mesh free method.
- Materials properties
- Boundary value problems
- Electric fields
- Mechanical properties
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