Tensile fracture of graphene nanoribbons encapsulated in single-walled carbon nanotubes

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• 作者：Te-Hua Fang ; Win-Jin Chang ; Yu-Lun Feng ; Cheng-I Weng
• 刊名：Acta Mechanica
• 出版年：2016
• 出版时间：October 2016
• 年：2016
• 卷：227
• 期：10
• 页码：2961-2967
• 全文大小：1,548 KB
• 刊物类别：Engineering
• 刊物主题：Theoretical and Applied Mechanics
  Mechanics, Fluids and Thermodynamics
  Continuum Mechanics and Mechanics of Materials
  Structural Mechanics
  Vibration, Dynamical Systems and Control
  Engineering Thermodynamics and Transport Phenomena
  
• 出版者：Springer Wien
• ISSN：1619-6937
• 卷排序：227

文摘

In this paper, we performed molecular dynamics simulations to study the fracture characteristics of a graphene nanoribbon encapsulated in a single-walled carbon nanotube (GNR@SWCNT) subjected to a uniaxial tensile loading. The effects of size and temperature on the fracture strength of nanocomposites under different strains were examined. The fracture strength and fracture strain of the nanocomposites increase with decreasing nanotube diameter. The maximum fracture strength and the corresponding fracture strain of GNR@SWCNT with a (10, 10) nanotube at 300 K were 126.3 GPa and 0.36, respectively. However, the fracture strength and fracture strain decrease with increasing temperature. The simulation results are useful in the design of nanodevices composed of carbon nanotubes and graphene nanoribbons.