On modeling and analysis of effective properties of Carbon Nanotubes Reinforced Materials
On modeling and analysis of effective properties of Carbon Nanotubes Reinforced Materials
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DOI：
10.1016/j.compstruct.2018.01.027
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发表时间：
2018-04
影响因子：
6.3
通讯作者：
L. Nazarenko;H. Stolarski;H. Altenbach
中科院分区：
文献类型：
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作者：
L. Nazarenko;H. Stolarski;H. Altenbach
本文着重介绍了碳纳米管增强材料（CNTRM）分析的两个新方面。首先，提出了一种允许存在界面的建模方法。其次，有目的地选择的数值实验证明了碳纳米管（CNT）的轴向刚度对CNTRM的有效性能的物理预期的主导地位。在所提出的模型中，Gutrin-Murdoch理论被应用到一个有限厚度的空心圆柱体，并结合能量等效的概念，以取代碳纳米管与一个等效的实心圆柱体。随后添加界面-建模为弹簧层-以获得另一个等效的实心圆柱体。使用条件矩方法评估CNRTM的有效性质。
Two new aspects related to analysis of Carbon Nanotubes Reinforced Materials (CNTRM) are emphasized in this work. First, a modeling methodology allowing for presence of interphases is proposed. Second, the physically expected dominance of the axial stiffness of Carbon nanotubes (CNT) on the effective properties of CNTRM is demonstrated by purposefully selected numerical experiments. In the proposed model the Gutrin-Murdoch theory is applied to a hollow cylinder of finite thickness and combined with the notion of energy equivalence to replace CNT with an equivalent solid cylinder. The interphase – modeled as a spring layer – is subsequently added to obtain another equivalent solid cylinder. Effective properties of CNRTM are evaluated using the Method of Conditional Moments.