Study of mechanical properties of modified and unmodified double-walled carbon nanotubes

Publish Year: 1398
نوع سند: مقاله ژورنالی
زبان: English
View: 258

This Paper With 5 Page And PDF Format Ready To Download

  • Certificate
  • من نویسنده این مقاله هستم

استخراج به نرم افزارهای پژوهشی:

لینک ثابت به این Paper:

شناسه ملی سند علمی:

JR_MBT-3-4_007

تاریخ نمایه سازی: 10 خرداد 1399

Abstract:

In the past decade a large interest is developed to carbon nanotubes (CNTs) that exhibit exceptional mechanical and electrical properties. In this paper, the finite element model (FE) is combined with the modified Morse interatomic potential and the molecular structural mechanics approach in order to study the role of diameter and chirality in the mechanical properties of Armchair and Zigzag double-walled carbon nanotubes (DWCNTs). The interlayer van der Waals (vdW) forces are represented by the ‘6–12’ Lennard–Jones (LJ) potential and simulated by a nonlinear truss rod model. The results show the Young’s and shear modulus of DWCNTs increases with increasing the nanotube diameter. The computational results agree well with the previous experimental and theoretical results.

Keywords:

Mechanical properties , Finite element method , Double walled Carbon Nanotubes

Authors

Sahar Beigy

Mechanical Engineering Department, Sahand University of Technology, Tabriz, Iran

Javad Akbarian

Mechanical Engineering Department, Payam Noor University, Tehran, Iran