Free Vibration of Piezoelectric Laminated Cylindrical Shell with Delamination

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Abstract. The free vibration of the piezoelectric laminated cylindrical shell with throughout circumference delamination is analyzed in this paper. By introducing the Heaviside step function into assumed displacement components and using elastic piezoelectric theory, the constitutive relations of the piezoelectric laminated shell with delamination are established. Then the dynamic governing equations of the structure are derived through variational principle. In numerical examples, the effects of delamination length, depth, boundary condition, material property and thickness of piezoelectric layer on the first natural frequency of piezoelectric laminated shell with delamination are investigated.

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Advanced Materials Research (Volumes 538-541)

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2576-2581

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June 2012

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© 2012 Trans Tech Publications Ltd. All Rights Reserved

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