Representations for isotropic thermoelastic dielectrics

Using Chakrabarti and Wainwright's method, an integrity basis consisting of eighteen invariants is constructed for the energy function of deformation and polarization of Isotropic thermoelastic dielectrics. The minimality of the integrity basis is verified by group theoretic methods and this minimal integrity basis is employed to construct closed form irreducible polynomial representations for the electric tensor, the stress tensor and the electric and heat flux vectors.