Abstract
In this paper, the nonlinear dynamic behavior of functionally graded (FG) cylindrical shells on an elastic foundation with circumferential discontinuity is investigated. For this, a reduced-order model is deduced from the perturbation method to describe the transversal displacement field that considers the influence of circumferential discontinuity of the elastic foundation. The vibration modes that have most influence on the linear response of problem are used as an initial solution of the perturbation method to obtain the reduced-order model. Nonlinear equations of motion are obtained employing Donnell’s nonlinear theory and the differential equations are discretized using the Galerkin method. A parametric analysis of the resonance curves of the FG cylindrical shell is performed, showing the influence of discontinuity on the nonlinear oscillations of FG cylindrical shells.
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Pereiria, J.K.A., Soares, R.M., Silva, F.M.A., Gonçalves, P.B. (2022). Influence of Circumferential Discontinuity of an Elastic Foundation on the Nonlinear Dynamics of Cylindrical Shells with Functionally Graded Material. In: Lacarbonara, W., Balachandran, B., Leamy, M.J., Ma, J., Tenreiro Machado, J.A., Stepan, G. (eds) Advances in Nonlinear Dynamics. NODYCON Conference Proceedings Series. Springer, Cham. https://doi.org/10.1007/978-3-030-81162-4_15
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DOI: https://doi.org/10.1007/978-3-030-81162-4_15
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