scholarly journals Free Vibration Analysis of Hybrid Laminated Composite Plate

2021 ◽  
Vol 9 (VII) ◽  
pp. 3394-3401
Author(s):  
Bajirao B. Lamkhade
Keyword(s):  
Boundary Condition ◽  
Free Vibration ◽  
Composite Plate ◽  
Natural Frequencies ◽  
Shear Deformation Theory ◽  
Laminated Composite ◽  
Free Vibration Analysis ◽  
Mesh Size ◽  
Laminated Composite Plate ◽  
Orientation Boundary

In past decade a new manufacturing and Design technology developed across the globe because of that it possible to manufacture and analyses a hybrid laminated composite plate which is used in the various applications like aerospace, marine, spacecraft application were its subjected to dynamic loading so it is necessary estimate the response of the system under free vibration. Aim of this paper is Dynamic analysis of laminated composite plate which is made of hybridization of carbon epoxy and glass epoxy material. Natural frequencies are evaluated by FEM with the help of abaqus software for of hybrid laminated composite plate. The Parameter like aspect ratio, fiber orientation, boundary condition and mesh size of the FEA elements and stacking sequence affects natural frequencies of the plate. A hybrid laminated composite in which carbon fiber on top as well as bottom and glass fiber in inters layer gives maximum natural frequency at any boundary condition. FEM uses first order shear deformation theory.

Second-order statistics of large-amplitude free vibration of a random composite plate

2009 ◽  
Vol 223 (8) ◽  
pp. 1099-1113 ◽  
Author(s):  
P Dash ◽  
B N Singh
Keyword(s):  
Free Vibration ◽  
Composite Plate ◽  
Shear Deformation Theory ◽  
Laminated Composite ◽  
Element Model ◽  
Perturbation Approach ◽  
Deterministic System ◽  
Laminated Composite Plate ◽  
System Equation ◽  
Non Linear

This article addresses the non-linear free vibration stochastic characteristic of a laminated composite plate having random material properties. The transverse shear effects have been included in the system equation in the frame work of higher-order shear deformation theory. The analysis uses Green—Lagrange non-linear strain—displacement relationship to model geometric non-linearity. Direct iteration approach is used to handle deterministic system non-linearity and perturbation approach is presented to handle the randomness in the system properties. Mean and variance of the random natural frequencies have been obtained by employing a C0 isoparametric non-linear finite-element model. Comparisons with the published results show the accuracy of the proposed procedure. A few results covering various features have been presented for a laminated composite plate with different boundary conditions.

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.

Geometrically Nonlinear Free Vibration of Laminated Composite Plate Embedded With Piezoelectric Layers Having Uncertain Material Properties

2012 ◽  
Vol 134 (6) ◽  
Author(s):  
Padmanav Dash ◽  
B. N. Singh
Keyword(s):  
Free Vibration ◽  
Geometric Nonlinearity ◽  
Composite Plate ◽  
Shear Deformation Theory ◽  
Laminated Composite ◽  
Perturbation Approach ◽  
Laminated Composite Plate ◽  
Nonlinear Free Vibration ◽  
Random System ◽  
System Properties

In this paper, the nonlinear free vibration stochastic characteristic of a smart laminated composite plate having random system properties is presented. The transverse shear effects have been included in the system equation in the frame work of higher order shear deformation theory. The analysis uses the Green-Lagrange nonlinear strain displacement relationship to model geometric nonlinearity. The direct iteration approach is used to handle deterministic geometric nonlinearity, and the perturbation approach is employed to handle the randomness in the system properties. Mean and variance of the random natural frequencies have been obtained by employing a C0 isoparametric nonlinear finite element model. Comparisons with the published results show the accuracy of the proposed procedure. A few results covering various features have been presented for a laminated composite plate with different boundary conditions.

Global Gaussian Collocation Method for Free Vibration Analysis of Laminated Composite Plates

2013 ◽  
Vol 785-786 ◽  
pp. 244-247
Author(s):  
Jiang Wu ◽  
Song Xiang
Keyword(s):  
Free Vibration ◽  
Collocation Method ◽  
Present Method ◽  
Deformation Theory ◽  
Natural Frequencies ◽  
Shear Deformation Theory ◽  
Laminated Composite ◽  
Free Vibration Analysis ◽  
Composite Plates ◽  
Laminated Composite Plates

In the present paper we used the global Gaussian collocation method and trigonometric shear deformation theory to analyze free vibration of laminated composite plates. Natural frequencies computed by the present method are found to agree well with those from some available published results.

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