Abstract
Crack Energy Density (CED) is known as the well-established fracture parameter that is defined without any restriction on constitutive equations for the ordinary materials and is expected also to describe the fracture behavior of piezoelectric material. In this paper, CED for piezoelectric material is defined from path-independent integral based on energy conservation law. Relationships between CED and other fracture parameters for piezoelectric material are obtained and possibility as fracture parameter of CED for piezoelectric material is examined.
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