Torsion of cracked nanorods using a nonlocal elasticity model Articles uri icon

publication date

  • March 2014

issue

  • 11(115304)

volume

  • 47

international standard serial number (ISSN)

  • 0022-3727

electronic international standard serial number (EISSN)

  • 1361-6463

abstract

  • This paper presents a nonlocal cracked-rod model from which we have analysed the torsional vibrations of a carbon nanotube with a circumferential crack. Several types of boundary conditions, including the consideration of a buckyball at the end of the nanotube, have been studied. The nonlocal Eringen elasticity theory is used to formulate the problem. The cracked rod is modelled by dividing the cracked element into two segments connected by a torsional linear spring whose stiffness is related to the crack severity. The effect of the nonlocal small-scale parameter, crack severity, cracked section position, different boundary conditions and attached mass are examined in this work.

keywords

  • cracked nanorods; nanobud; torsion ; nonlocal elasticity ; nanotechnology