Molecular Dynamics Simulation of Mechanical Properties of Carbon Honeycomb

被引：0
|
作者：
Xie L. [1 ]
An H. [1 ]
Qin Q. [1 ]
Fan W. [1 ]
Zheng L. [1 ]
机构：
[1] School of Mechanical Engineering, University of Sicience and Technology Beijing, Beijing
来源：
Kuei Suan Jen Hsueh Pao/Journal of the Chinese Ceramic Society | 2019年 / 47卷 / 10期
关键词：
Anisotropy; Carbon honeycomb; Mechanical property; Molecular dynamics simulation;
D O I：
10.14062/j.issn.0454-5648.2019.10.18
中图分类号：
学科分类号：
摘要：
The tensile mechanical properties of carbon honeycomb in different directions at various temperatures and strain rates were investigated via molecular dynamic (MD) simulation. The results show that carbon honeycomb is an anisotropic material, and has the maximum tensile strength in the cell axial direction. Carbon honeycomb has a tensile strength of 553 GPa in cell-axis direction at room temperature (300 K). The elastic modulus of carbon honeycomb is more than 5 300 GPa in the cell-axis direction, which is over ten times greater than that in the other two directions. The maximum failure strain of the carbon honeycomb in the armchair direction reaches 0.321 2, exhibiting excellent ductility. The mechanical property is temperature-dependent. The ultimate tensile strength and failure strain of carbon honeycomb both increase with the decrease of temperature. © 2019, Editorial Department of Journal of the Chinese Ceramic Society. All right reserved.
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页码：1491 / 1498
页数：7
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