Structural Analysis of thin isotropic and orthotropic plates using finite element analysis

International Journal of Mechanical Engineering

© 2017 by SSRG - IJME Journal

Volume 4 Issue 6

Year of Publication : 2017

Authors : V. J. K. Silpa, B. V. S. Raghu Vamsi, K. Gowtham Kumar

10.14445/23488360/IJME-V4I6P104

How to Cite?

V. J. K. Silpa, B. V. S. Raghu Vamsi, K. Gowtham Kumar, "Structural Analysis of thin isotropic and orthotropic plates using finite element analysis," SSRG International Journal of Mechanical Engineering, vol. 4,  no. 6, pp. 13-24, 2017. Crossref, https://doi.org/10.14445/23488360/IJME-V4I6P104

Abstract:

The strength and stability of a structural member is affected by the discontinuity and its features, namely geometry, position, and dimensions determined during the design process. It results in localization of stresses resulting in excessive plastic deformation leading to distortion. The failure mode may get transformed to distortion; or tearing; or buckling, depending on the boundary as well as loading conditions. In this work the structural response of a thin plate with a circular hole subject to various boundary conditions is studied. The response of the plate is studied by performing stress, modal and buckling analysis. The effect of parameters like d/w (hole diameter to plate width) ratio, location of the hole & support conditions on the stress concentration factor, natural frequency, mode shape and buckling load is presented for isotropic and orthotropic materials. The d/w ratio is varied over a span of 0.1 - 0.5 with an incremental step of 0.1. The study concludes that increase in d/w ratio results in increase of frequency ratio & deflection ratio which is because of decrease in the stiffness of the material. In addition that it has been observed that the stress concentration factor and buckling load factor decreased with increase of d/w ratio.

Keywords:

Finite element analysis Structural response, stress concentration factor, buckling factor, frequency ratio

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