Asymmetric buckling analysis of the circular FGM plates with temperature-dependent properties under elastic medium

Journal of Simulation and Analysis of Novel Technologies in Mechanical Engineering

مقاله 16، دوره 9، شماره 2 - شماره پیاپی 26، آبان 2016، صفحه 327-340   

نوع مقاله: Persian

نویسندگان

Alireza Naddaf Oskouee^{* 1}؛ Hadi Mohammadi Hoveyeh²؛ Vahid Alaee³؛ k. Vahedi¹

¹Associate Professor, School of Mechanical Engineering, University of Imam Hussein (AS), Tehran

²Lecturer, Department of Mechanics, University Eyvanakey, Semnan

³MA, School of Mechanical Engineering, University of Imam Hussein (AS), Tehran

چکیده

In this paper, Asymmetric buckling analysis of functionally graded (FG) Circular plates with temperature dependent property that subjected to the uniform radial compression and thermal loading is investigated. This plate is on an elastic medium that simulated by Winkler and Pasternak foundation. Mechanical properties of the plate are assumed to vary nonlinearly by temperature change. The equilibrium equations are obtained using the classical plate theory (CPT), Von Karman geometric nonlinearity and virtual displacement method. Existence of bifurcation buckling is examined and stability equations are obtained by means of the adjacent equilibrium criterion. The effects of elastic foundation coefficient, thickness to radius, power law index, and temperature-dependency of the material properties on critical buckling load of FG plates are presented. The results of the present work have been compared with the results of other investigator and the results of the comparison are very good. It is found that by increasing temperature, critical buckling load decreases. It is also concluded that the critical buckling load of (FG) Circular plates increases with an increase in the Winkler and Pasternak constants of elastic foundation.

کلیدواژه‌ها

Circular plates؛ Asymmetric buckling؛ Functionally Graded Materials؛ Temperature-dependency؛ Elastic foundation

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