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Thermal Buckling of Graphene Platelets Toughening Sandwich Functionally Graded Porous Plate with Temperature-Dependent Properties
International Journal of Applied Mechanics ( IF 3.5 ) Pub Date : 2020-10-12 , DOI: 10.1142/s1758825120500891
Mingnan Xu 1, 2 , Xinping Li 1 , Yi Luo 1 , Gang Wang 1, 2 , Yunhua Guo 1 , Tingting Liu 1 , Junhong Huang 3 , Ge Yan 1, 2
Affiliation  

Thermal buckling of graphene platelets (GPLs) reinforced sandwich functionally graded porous (SWFGP) plate with temperature-dependent (TD) properties is investigated. The studied plate is composed of two homogeneous face layers and one functionally graded porous core. Two types of porosity distribution with uniformly distributed GPL reinforcement are included. Based on the first-order shear deformation plate theory, Hamilton principle and Galerkin procedure are employed to build the analytical framework. Uniform, linear, and nonlinear thermal loads along the thickness direction are considered. Subsequently, an iterative procedure is introduced to find out the critical buckling temperature of the plate with the temperature dependence considered. Verifications are conducted to demonstrate the accuracy of the proposed method. Several parametric analyses are investigated in detail where the effects of porosity, GPL weight fraction, geometric configuration, and the boundary condition on the thermal buckling of the plates are discussed.

中文翻译:

石墨烯片的热屈曲增韧三明治功能梯度多孔板与温度相关的特性

研究了具有温度相关 (TD) 特性的石墨烯薄片 (GPL) 增强夹层功能梯度多孔 (SWFGP) 板的热屈曲。所研究的板由两个均匀的表面层和一个功能梯度多孔芯组成。包括两种类型的均匀分布的 GPL 增强的孔隙率分布。基于一阶剪切变形板理论,采用Hamilton原理和Galerkin程序建立解析框架。考虑沿厚度方向的均匀、线性和非线性热载荷。随后,引入了一个迭代过程,以找出考虑温度依赖性的板的临界屈曲温度。进行验证以证明所提出方法的准确性。
更新日期:2020-10-12
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