Two theoretical problems in electro-magneto-elastic analysis

摘要

Two fundamental theories are discussed in this paper. In the nonlinear electro-magneto-elastic analysis, different authors give different formulas. It means that the fundamental theory should still be studied. In this paper, we give a review of different theories and extend the physical variational principle to the material with electromagnetic body couple. For the temperature wave, we compare the inertial entropy theory and the Cattaneo-Vernotte's theory in detail and show that the former is more appropriate. These theories may be interesting and need further research.