Journal article
Nonlinear vibration analysis of geodesically-stiffened laminated composite cylindrical shells in an elastic medium
Composite structures, Vol.111(1), pp.473-487
05/2014
Handle:
https://hdl.handle.net/2376/115475
Abstract
Nonlinear free vibration and parametric resonance analysis for a geodesically-stiffened anisotropic laminated thin cylindrical shell of finite length subjected to static or periodic axial forces using the boundary layer theory is presented. The shell is embedded in an elastic medium which is modeled as a Pasternak elastic foundation. The material of each layer of the shell is assumed to be linearly elastic, anisotropic and fiber-reinforced. The equations of motion are developed using the Donnel shell theory with a von Kármán-type of kinematic nonlinearity, and the shell-foundation interaction and the extension-shear, extension-flexural and flexural-twist couplings are included. A two-step perturbation technique is employed to determine the linear and nonlinear frequency and parametric resonance of the geodesically-stiffened anisotropic laminated cylindrical shells. The numerical analysis involves the nonlinear vibration behavior of laminated composite cylindrical shells with respect to the material properties and the influences of initial stress, geometric shell characteristics (i.e., radius, length and thickness, including geodesic, axial and ring stiffeners), and stacking sequence. The results reveal that the shell geometric parameters, elastic medium, and periodic axial excitation have a significant effect on the nonlinear vibration behavior of anisotropic laminated composite cylindrical shells.
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Details
- Title
- Nonlinear vibration analysis of geodesically-stiffened laminated composite cylindrical shells in an elastic medium
- Creators
- Zhi-Min Li - State Key Laboratory of Mechanical System and Vibration, Shanghai Key Lab of Digital Manufacture for Thin-Walled Structures, School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai 200240, PR ChinaPizhong Qiao - State Key Laboratory of Ocean Engineering, School of Naval Architecture, Ocean and Civil Engineering, Shanghai Jiao Tong University, Shanghai 200240, PR China
- Publication Details
- Composite structures, Vol.111(1), pp.473-487
- Academic Unit
- Civil and Environmental Engineering, Department of
- Publisher
- Elsevier Ltd
- Identifiers
- 99900547560101842
- Language
- English
- Resource Type
- Journal article