Abstract
Based on the theory of elasticity, the bending behavior of piezoelectric cantilever with gradient property for piezoelectric parameter g31is studied. By use of Airy stress function method, the solution of cantilever subjected to a couple and an electric field is obtained. The results obtained in present paper are compared with that from both experiment and other analytical models based on BaTiO3-ceramics. It is found that the tip deflection of cantilever obtained in present papers agrees well with the result of N-morph cantilever when the number N gets to∞. Present paper also gives a theoretical demonstration that all the mechanical stresses will be vanishing in FGM actuators. Finally addressed in present paper is a method of parameter identification.
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