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Research Paper | Mechanical Engineering | India | Volume 2 Issue 6, June 2013 | Popularity: 7 / 10

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COMPARATIVE ANALYSIS OF MULTI LAYERED COMPOSITE PLATES USING HIGHER ORDER THEORIES

Md Iftekhar Alam, Tasmeem Ahmad Khan

Abstract: The present work deals with the modeling and analysis of laminated composites plate. In the recent years, significant research has been carried out in the area of composite structure owing to its widespread application in aerospace and smart as well as intelligent structures. In the current analysis, classical and higher order plate theory is considered for studying the deformation of composite plates with symmetric and anti-symmetric orientation. The equations of equilibrium are obtained by using the principle of virtual displacement. Solutions are obtained in closed form using Navier technique. The analysis is carried out for different side to thickness and aspect ratio. The non-dimensional deflections at mid plane and at various nodes have been calculated for different loading conditions (viz uniformly distributed and static sinusoidal distributed load). Finally the model is implemented by Finite Element Method on a laminated composite plate of any lay-up. Finite element model is based on four node quadrilateral element in the present analysis, where the deflections are calculated at all the nodes. The computing is done by using MATLAB. The results of non-dimensional deflection obtained by classical and higher order theories are compared for different aspect ratio with the variation of side to thickness ratio.

Keywords: CLPT, FSDT, ESL, BVP, MATLAB

Edition: Volume 2 Issue 6, June 2013

Pages: 236 - 238

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