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      https://www.ias.ac.in/article/fulltext/sadh/040/04/1301-1311

    • Keywords

       

      Molecular mechanics; single wall carbon nanotube; mechanical properties; finite element method.

    • Abstract

       

      Molecular mechanics based finite element analysis is adopted in the current work to evaluate the mechanical properties of Zigzag, Armchair and Chiral Single wall Carbon Nanotubes (SWCNT) of different diameters and chiralities. Three different types of atomic bonds, that is Carbon–Carbon covalent bond and two types of Carbon–Carbon van der Waals bonds are considered in the carbon nanotube system. The stiffness values of these bonds are calculated using the molecular potentials, namely Morse potential function and Lennard-Jones interaction potential function respectively and these stiffness’s are assigned to spring elements in the finite element model of the CNT. The geometry of CNT is built using a macro that is developed for the finite element analysis software. The finite element model of the CNT is constructed, appropriate boundary conditions are applied and the behavior of mechanical properties of CNT is studied.

    • Author Affiliations

       

      P Subba Rao1 2 Sunil Anandatheertha3 G Narayana Naik1 G Gopalakrishnan1

      1. Department of Aerospace Engineering, Indian Institute of Science, Bangalore 560012, India
      2. Structures group, ISRO Satellite Centre, Bangalore 560017, India
      3. Department of Mechanical Engineering, PES University, Bangalore 560085, India
    • Dates

       
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