Mechanical properties of carbon nanotube (CNT)-based nanocomposites are broadly discussed in the literature. The influence of CNT arrangements on the elastic properties of nanocomposites based on the finite-element method (FEM) and representative volume element (RVE) approach is presented here. This study is an application of RVE modeling in the characterization of elastic behavior of CNT polymer nanocomposites. Our main contribution is the analysis of the impact of a nanotube arrangement on the elastic properties of nanocomposite to comprehensively determine the material constants. While most of the articles are focused on one distribution, not all material constants are determined. Our FEM analysis is compared with micromechanical models and other results from the literature. The current work shows that nanotube arrangements lead to different results of elastic properties. The analytical micromechanical models are consistent with the numerical results only for axial Young’s modulus and Poisson’s ratio, whereas other elastic constants are lower than the numerical predictions. The results of these studies indicate that FEM can predict nanocomposite mechanical properties with good accuracy. This article is helpful and useful to comprehensively understand the influence of CNT arrangements on the elastic properties of nanocomposites.

中文翻译：

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具有碳纳米管的纳米复合材料的有限元微力学建模

在文献中广泛讨论了基于碳纳米管（CNT）的纳米复合材料的机械性能。本文介绍了基于有限元法（FEM）和代表性体积元法（RVE）的CNT排列方式对纳米复合材料弹性性能的影响。这项研究是RVE模型在表征CNT聚合物纳米复合材料的弹性行为中的应用。我们的主要贡献是分析纳米管排列对纳米复合材料弹性性能的影响，以全面确定材料常数。尽管大多数文章都集中于一种分布，但并不是所有的材料常数都可以确定。我们的有限元分析与微机械模型和其他文献结果进行了比较。当前的工作表明，纳米管的排列导致不同的弹性性能结果。分析的微力学模型仅在轴向杨氏模量和泊松比方面与数值结果一致，而其他弹性常数低于数值预测。这些研究的结果表明，有限元法可以很好地预测纳米复合材料的机械性能。本文对于全面了解CNT排列对纳米复合材料弹性性能的影响是有帮助和有用的。这些研究的结果表明，有限元法可以很好地预测纳米复合材料的机械性能。本文对于全面了解CNT排列对纳米复合材料弹性性能的影响是有帮助和有用的。这些研究的结果表明，有限元法可以很好地预测纳米复合材料的机械性能。本文对于全面了解CNT排列对纳米复合材料弹性性能的影响是有帮助和有用的。