A MACROSCOPIC-MICROSCOPIC CONSTITUTIVE MODEL FOR FERROELECTRIC CERAMICS 1)

Ferroelectric ceramics are an important class of modern engineering materials and have received increasing attention for their distinctive properties and applications For example, they are used as modulators, deflectors, optical memories imaging devices and so on With the wider use of the materials and harsher requirement of their performances, the study of coupling electric and mechanical behavior has attracted great interests The main effort of this paper is to obtain the constitutive relation of fe...