Static and dynamic behavior of (FG-CNT) reinforced porous sandwich plate using energy principle
Static and dynamic behavior of (FG-CNT) reinforced porous sandwich plate using energy principle
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DOI：
10.12989/scs.2019.32.5.595
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发表时间：
2019-09-10
影响因子：
4.6
通讯作者：
Mahmoud, S. R.
中科院分区：
文献类型：
--
作者：
Medani, Mohammed;Benahmed, Abdelillah;Mahmoud, S. R.
本文研究了功能梯度碳纳米管增强多孔夹层聚合物板的静态和动态性能。采用一阶剪切变形理论（FSDT）研究了纳米复合材料板的力学模型.假设了两种类型的多孔夹层板（面板增强/均质芯层夹层板和面板增强/均质芯层夹层板）。考虑了单壁碳纳米管在面板或芯多孔板上的功能梯度碳纳米管（FG-CNT）和均匀碳纳米管（UD-CNT）分布。利用汉密尔顿原理导出了控制方程。得到了这类多孔板的弯曲和振动解。文中给出了详细的数学推导，并与文献中的一些情况进行了比较。研究和讨论了加筋夹层多孔板的纵横比、体积分数、加筋类型、模态数和板厚等参数对弯曲和振动分析的影响。在孔隙率问题上，研究发现孔隙率的变化对多孔夹层板的静态和振动特性有很大的影响。
This paper deals with the static and dynamic behavior of Functionally Graded Carbon Nanotubes (FG-CNT)reinforced porous sandwich (PMPV) polymer plate. The model of nanocomposite plate is investigated within the first order shear deformation theory (FSDT). Two types of porous sandwich plates are supposed (sandwich with face sheets reinforced / homogeneous core and sandwich with homogeneous face sheets / reinforced core). Functionally graded Carbon Nanotubes (FG-CNT) and uniformly Carbon Nanotubes (UD-CNT) distributions of face sheets or core porous plates with uniaxially aligned single-walled carbon nanotubes are considered. The governing equations are derived by using Hamilton's principle. The solution for bending and vibration of such type's porous plates are obtained. The detailed mathematical derivations are provided and the solutions are compared to some cases in the literature. The effect of the several parameters of reinforced sandwich porous plates such as aspect ratios, volume fraction, types of reinforcement, number of modes and thickness of plate on the bending and vibration analyses are studied and discussed. On the question of porosity, this study found that there is a great influence of their variation on the static and vibration of porous sandwich plate.