| Title: | Natural frequencies analysis of functionally graded circular cylindrical shells |
| Authors: | Alshabatat, Nabeel T. Zannon, Mohammad |
| Citation: | Applied and Computational Mechanics. 2021, vol. 15, no. 2, p. 105-122. |
| Issue Date: | 2021 |
| Publisher: | University of West Bohemia |
| Document type: | article článek |
| URI: | http://hdl.handle.net/11025/46601 |
| ISSN: | 1802-680X (Print) 2336-1182 (Online) |
| Keywords: | FGM kruhový válcový plášť;přirozené frekvence;teorie smykové deformační skořepiny třetího řádu;Carrera unified formulation |
| Keywords in different language: | FGM circular cylindrical shell;natural frequencies;third-order shear deformation shell theory;Carrera’s unified formulation |
| Abstract in different language: | In the present work, a study on natural frequencies of functionally graded materials (FGM) circular cylindrical shells is presented. The FGM is considered to be a mixture of two materials. The volumetric fractions are considered to vary in the radial direction (i.e., through the thickness) in compliance with a conventional power-law distribution. The equivalent material properties are estimated based on the Voigt model. The analysis of the FGM cylindrical shells is performed using the third-order shear deformation shell theory and the principle of virtual displacements. Moreover, the third-order shear deformation shell theory coupled with Carrera’s unified formulation is applied for the derivation of the governing equations associated with the free vibration of circular cylindrical shells. The accuracy of this method is examined by comparing the obtained numerical results with other previously published results. Additionally, parametric studies are performed for FGM cylindrical shells with several boundary conditions in order to show the effect of several design variables on the natural frequencies such as the power-law exponent, the circumferential wave number, the length to radius ratio and the thickness to radius ratio. |
| Rights: | © University of West Bohemia |
| Appears in Collections: | Volume 15, number 2 (2021) Volume 15, number 2 (2021) |
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