Study of Advanced Composite Plates Free Vibration Analysis (FGP) with Porosity

2021 ◽  
pp. 391-398
Author(s):  
Slimane Merdaci ◽  
Hakima Belghoul ◽  
Adda Hadj Mostefa ◽  
Otmane Zerrouki
2018 ◽  
Vol 184 ◽  
pp. 688-697 ◽  
Author(s):  
Moussa Abualnour ◽  
Mohammed Sid Ahmed Houari ◽  
Abdelouahed Tounsi ◽  
El Abbes Adda Bedia ◽  
S.R. Mahmoud

2011 ◽  
Vol 471-472 ◽  
pp. 739-744 ◽  
Author(s):  
Ali Fallah ◽  
Mohammad Hossein Kargarnovin ◽  
Mohammad Mohammadi Aghdam

In this paper, free vibration analysis of thin symmetrically laminated skew plates with fully clamped edges is investigated. The governing differential equation for skew plate which is a fourth order partial differential equation (PDE) is obtained by transforming the differential equation in Cartesian coordinates into skew coordinates. Based on the multi-term extended Kantorovich method (MTEKM) an efficient and accurate approximate closed-form solution is presented for the governing PDE. Application of the MTEKM reduces the governing PDE to a dual set of ordinary differential equations. These sets of equations are then solved with infinite power series solution, in an iterative manner until convergence was achieved. Results of this study show the fast rate of convergence of the MTEKM. Usually two or three iterations are enough to obtain reasonably accurate results. The frequency parameters of laminated composite plates are obtained for different skew angles and lay-up configuration for different composites laminates skew plates. Comparisons have been made with the available results in the literature which show the accuracy and efficiency of the method.


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