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首页> 外文期刊>Proceedings of the institution of mechanical engineers >Modelling and analysis of mechanical behaviour of carbon nanotube reinforced composites
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Modelling and analysis of mechanical behaviour of carbon nanotube reinforced composites

机译：碳纳米管增强复合材料力学行为的建模与分析

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摘要

In this paper, the mechanical properties of carbon nanotube reinforced composites are evaluated based on the continuum mechanics approach using a hexagonal representative volume element (RVE) under lateral loading conditions. It is paramount in such analyses that the correct boundary conditions be imposed, such that they simulate the actual deformation within the composite. Numerical equations are used to evaluate the mechanical properties from numerical solutions for the hexagonal RVEs under the lateral load case. An extended rule of mixtures is applied to evaluate the effective axial Young's modulus, for validation of the proposed model. For the RVEs having long carbon nanotube, better values of stiffness in axial direction are found as compared to stiffness in the lateral direction. Also, the comparative evaluation of both square and hexagonal RVEs with short carbon nanotubes is presented here. The short carbon nanotube is not found to be as effective as long carbon nanotube in reinforcing the composite.
机译：在本文中，碳纳米管增强复合材料的力学性能是基于连续力学方法，使用六边形代表体积单元（RVE）在横向载荷条件下进行评估的。在此类分析中，最重要的是要施加正确的边界条件，以便它们模拟复合材料内的实际变形。数值方程用于根据横向载荷情况下六角形RVE的数值解评估机械性能。应用混合物的扩展规则来评估有效轴向杨氏模量，以验证所提出的模型。对于具有长碳纳米管的RVE，与横向上的刚度相比，轴向上的刚度值更好。此外，此处介绍了对带有短碳纳米管的方形和六角形RVE的比较评估。短的碳纳米管在增强复合材料方面不如长的碳纳米管有效。

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