Longitudinal Elastic Waves in Deformed Carbon Nanotubes (original) (raw)

Romanian Journal of Information Science and Technology

Abstract

This study investigates the exciting of the elastic waves in single walled carbon nanotubes (SWCNT) during their deformations according to the conditions of mechanical treatments. The assumed procedures for longitudinal deformation are related to a short time extension at different velocities and to a harmonic oscillation impose to the atoms placed at one end of the nanotube. We analyse the responses of SWCNT to the external mechanical actions by using a large atomistic model of 2200 atoms simulating a carbon nanotubes of 27.3 nm in the conditions of rigid couplings at its both ends using modified Morse inter-atomic potentials. The simulation models provides details about reversible and irreversible disruption of SWCNT manifested by local transitions to carbon nanowire and self healing processes, being related to the conditions of the mechanical treatments.

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