scholarly journals Design for the Maximum Natural Frequency of Laminated Composite Plates by Optimally Distributed Short Fibers

2008 ◽  
Vol 74 (741) ◽  
pp. 1049-1055
Author(s):  
Shinya HONDA ◽  
Yoshihiro NARITA
Keyword(s):  
Natural Frequency ◽  
Laminated Composite ◽  
Composite Plates ◽  
Short Fibers ◽  
Laminated Composite Plates

scholarly journals Prediction of Natural Frequency of Laminated Composite Plates Using Artificial Neural Networks

Engineering ◽  
2012 ◽  
Vol 04 (06) ◽  
pp. 329-337 ◽  
Author(s):  
Mutra Raja Sekhara Reddy ◽  
Bathini Sidda Reddy ◽  
Vanguru Nageswara Reddy ◽  
Surisetty Sreenivasulu
Keyword(s):  
Neural Networks ◽  
Artificial Neural Networks ◽  
Natural Frequency ◽  
Laminated Composite ◽  
Composite Plates ◽  
Laminated Composite Plates ◽  
Artificial Neural

Layer Thickness Optimization of Laminated Composite Plates to Maximize the First-Order Natural Frequency

2014 ◽  
Vol 709 ◽  
pp. 139-143
Author(s):  
Li Guo Zhang ◽  
Kang Yang ◽  
Wei Ping Zhao ◽  
Song Xiang
Keyword(s):  
Layer Thickness ◽  
Natural Frequency ◽  
Present Method ◽  
Optimization Problem ◽  
Laminated Composite ◽  
Composite Plates ◽  
Thickness Optimization ◽  
Laminated Composite Plates ◽  
First Order ◽  
Frequency Optimization

Layer thickness optimization is performed to maximize the first-order natural frequency of clamped laminated composite plates using the genetic algorithm and meshless global radial basis function collocation method. The objective function of optimization problem is the maximum first-order natural frequency; optimization variables are layer thickness. The optimal layer thickness and the maximum first-order natural frequency of the 2-layer plates are presented to demonstrate the accuracy of present method.

Dynamic Analysis of Orthotropic Laminated Composite Plate Under Axial Load on Elastic Foundation

2006 ◽  
Author(s):  
M. T. Ahmadian ◽  
T. Pirbodaghi
Keyword(s):  
Natural Frequency ◽  
Elastic Foundation ◽  
Composite Plate ◽  
Shear Deformation Theory ◽  
Compressive Force ◽  
Laminated Composite ◽  
Free Vibration Analysis ◽  
Composite Plates ◽  
Laminated Composite Plates ◽  
Laminated Composite Plate

In this paper, free vibration analysis of laminated composite plates is carried out using first shear deformation theory and finite element method. Effect of axial tension and compression forces on the natural frequencies of the structure is investigated. Applying elastic foundation under the laminated composite plates has enabled us to achieve desired frequencies. The displacements are based C° – nine plate bending element and each node has three degree of freedom. The equations of motion are derived using Hamilton's principle. Results indicate the tension forces will increase the natural frequency while the compression force reduces the natural frequency. The buckling force of plate is computed by increasing the absolute value of compressive force until the natural frequency tends to zero. Dynamic of moving mass in a circular path on the laminated composite plate is also investigated. Displacement of plate center reveals a sinusoidal pattern in time.

The effect of hybridization and boundary conditions on damping and free vibration of composite plates

2015 ◽  
Vol 22 (5) ◽  
Author(s):  
Ahmet Erkliğ ◽  
Mehmet Bulut ◽  
Eyüp Yeter
Keyword(s):  
Free Vibration ◽  
Boundary Conditions ◽  
Natural Frequency ◽  
Laminated Composite ◽  
Composite Plates ◽  
Damping Properties ◽  
Laminated Composite Plates

AbstractIn this study, the influence of hybridization on natural frequency and damping properties of laminated composite plates consisting of various combinations of fibers and boundary conditions are examined. Carbon (C), Kevlar

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