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首页> 外文期刊>Aerospace science and technology >Nonlinear thermomechanical buckling and post-buckling response of porous FGM plates using Reddy's HSDT
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Nonlinear thermomechanical buckling and post-buckling response of porous FGM plates using Reddy's HSDT

机译:使用Reddy's HSDT的多孔FGM板的非线性热机械屈曲和后屈曲响应

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摘要

This work presents an analytical approach to investigate buckling and post-buckling behavior of FGM plate with porosities resting on elastic foundations and subjected to mechanical, thermal and thermomechanical loads. The formulations are based on Reddy's higher-order shear deformation plate theory taking into consideration Von Karman nonlinearity, initial geometrical imperfections, and Pasternak type of elastic foundations. By applying Galerkin method, closed-form relations of buckling loads and post-buckling equilibrium paths for simply supported plates are determined. Numerical results are carried out to show the effects of porosity distribution characteristics (Porosity-I and Porosity-II), geometrical parameters, material properties and elastic foundations on the mechanical, thermal and thermomechanical buckling loads and post-buckling resistance capacity of the porous FGM plates. (C) 2018 Elsevier Masson SAS. All rights reserved.
机译:这项工作提出了一种分析方法来研究FGM板的屈曲和屈曲后行为,其孔隙位于弹性基础上,并受到机械,热和热机械载荷。该公式基于Reddy的高阶剪切变形板理论,并考虑了Von Karman非线性,初始几何缺陷和Pasternak类型的弹性地基。通过应用Galerkin方法,确定了简单支撑板的屈曲载荷与屈曲后平衡路径的闭合形式关系。数值结果显示了孔隙度分布特征(孔隙率I和孔隙率II),几何参数,材料特性和弹性基础对多孔FGM的机械,热和热机械屈曲载荷和抗屈曲后能力的影响。板。 (C)2018 Elsevier Masson SAS。版权所有。

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