A general theory for elastic dielectrics - Part I. The vectorial approach

In this paper a full-dynamic theory for elastic dielectrics is presented by a systematic application of thermomechanical balance laws. Polarization gr adient, quadrupole polarization and polarization inertia are taken into acc ount in order for a general theory to be obtained. The constitutive relatio ns are produced by using the second law of thermodynamics in the form of Cl ausius-Duhem inequality. In addition, a new formulation of the internal equ ation of motion is presented and compared with that of previous investigati ons. (C) 1999 Elsevier Science Ltd. All rights reserved.