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Investigating The Mechanical Properties Of Two-Dimensional Silicon Dioxide With Inherent Negative Poisson's Ratio by Molecular Dynamics Method
,
M.Sc. Thesis
Sharif University of Technology
;
Tavakoli, Ruholah
(Supervisor)
Abstract
Silicon dioxide or silica with the chemical formula SiO2 is the basic component of many minerals. SiO2 films and sheets are widely used in mechanics, optics and electronics due to their outstanding mechanical and electronic performance. The main reason for research in the field of materials with negative Poisson's ratio is their unusual properties, which arise due to the inherent property of negative Poisson's ratio. In this research, the mechanical properties of four two-dimensional silica structures at a temperature of one Kelvin were investigated with the help of molecular dynamics simulation. Also, the sensitivity of the results to the system size and strain rate was studied, and the...