Nonlinear dynamic response of piezoelastic laminated plates considering interfacial damage effects |
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Authors: | Fu Yiming Li Sheng |
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Affiliation: | (1) College of Mechanics and Aerospace, Hunan University, Changsha, 410082, China |
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Abstract: | This paper presents a nonlinear model for cross-ply piezoelastic laminated plates containing the damage effect of the intralayer
materials and interlaminar interfaces. The model is based on the general six-degrees-of-freedom plate theory, the discontinuity
of displacement, and electric potential on the interfaces are depicted by three shape functions, which are formulated according
to solutions about three equilibrium equations and conservation of charge. By using the Hamilton variation principle, the
three-dimensional nonlinear dynamic equations of piezoelastic laminated plates with damage are presented. Then using the finite
difference method and the Newmark scheme, an analytical solution is presented. In numerical examples, the effects of different
damage models, damage evolution, amplitude and frequency of electric loads on the nonlinear dynamic response of piezoelectric
laminated plate with interfacial imperfections are investigated. |
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Keywords: | Piezoelastic laminated plates Nonlinear dynamic response Interfacial damage Finite different method Damage evolution |
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