Effect of Vacancy Defect on the Free Vibration of Some Noncarbon Nanomaterials: A Molecular Static Study

The presence of vacancy defect has significant effect on the fracture behavior of the nanomaterials, hence it is important to study the effect of these defects on the mechanical and other properties of the nanostructure. The present study is carried out using molecular static simulation with modified Tersoff-Brenner type interatomic potential. The effect of mono-atom, di-atom, tri-atom and quad-atom vacancy on the free vibration characteristics of the different nanomaterials is investigated. The effect of clamped-clamped (CC) and clamped-free (CF) boundary conditions, geometric parameters i.e., length and diameter is studied. Furthermore, the effect of vacancy atom position on the fundamental frequency is also investigated.