| Free Vibration Analysis of Laminated Composite Plates with Arbitrary Shape |
| کد مقاله : 1059-ISAV |
| نویسندگان |
|
Javad Bagheri-Marzi1، رمضانعلی جعفری تلوکلائی *2، Paolo Valvo3، Maryam Abedi4، سمن صدری پور5 1School of Mechanical Engineering, Babol Nooshirvani Univerity of Technology, Shariati Av., 47148-71167 Babol, Mazandaran, Iran 2گروه طراحی جامدات، دانشکده مهندسی مکانیک، دانشگاه صنعتی نوشیروانی بابل، مازندران، ایران 3Department of Civil and Industrial Engineering, University of Pisa, Largo Lucio Lazzarino, I-56122 Pisa, Italy 4Department of Mechanical Engineering, Faculty of Engineering and Technology, University of Mazandaran, Babolsar, Iran 5دانشکده مهندسی مکانیک،دانشگاه صنعتی نوشیروانی بابل،بابل، مازندران |
| چکیده مقاله |
| In this paper, the undamped free vibration analysis of arbitrary shaped laminated composite plates with general stacking sequences is conducted based on the first-order shear deformation theory. By introducing a six nodded triangular element, the finite element method is used to obtain the vibrational characteristics of the plate i.e. natural frequencies and the corresponding mode shapes. The element considered is a higher-order triangular element. Each node includes five degrees of freedom. Gaussian numerical integration is used to calculate the mass and stiffness matrices. The whole solution method is implemented within the MATLAB. The convergence of the results have been investigated and results have been compared against some available data in the literature and also commercial software ANSYS in which three dimensional analysis is used. Very good agreements have been observed. The effects of several parameters – such as boundary conditions, geometry, and lay-ups – on the natural frequencies are studied in detail. |
| کلیدواژه ها |
| Free Vibration; Arbitrary Shape, Laminated Composite; Plate; Finite Element. |
| وضعیت: پذیرفته شده برای ارائه شفاهی |