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On a nonconventional thermodynamical model of a defective piezoelectric crystal

Giambo S., Maruszewski B., Restuccia L.

Journal of Technical Physics

2002

Vol. 43, no 2

155-163

The paper deals with an extended thermodynamical description of a defective piezoelectric crystal. Introducing a dislocation core tensor as an internal variable, the body is regarded as homogeneous and isotropic. Liu's theorem is applied to analyze the entropy inequality. The general constitutive relations for the state laws are derived, including all the possible linear and higher order simple and cross-effects which occur in the crystal when thermal, electric, elastic and dislocation fields interact with each other.