Explicit Corrector in Homogenization of Monotone Operators and Its Application to Nonlinear Dielectric Elastomer Composites

Abstract. This paper concerns the rigorous periodic homogenization for a weakly coupled electroelastic system of a nonlinear electrostatic equation with an elastic equation enriched with electrostriction. Such coupling is employed to describe dielectric elastomers or deformable (elastic) dielectrics. The effective response of the system is shown to consist of a homogeneous dielectric elastomer described by a weakly coupled nonlinear system of PDEs whose coefficients depend on the coefficients of the original heterogeneous material, the geometry of the composite, and the periodicity of the original microstructure. The approach developed here for this nonlinear problem allows us to obtain an explicit corrector result for the homogenization of monotone operators with minimal regularity assumptions.