Mechanical losses in glassy silicon dioxide: results of atomistic simulation

Two methods to estimate the mechanical energy losses in solid materials are proposed. These methods are based on the molecular dynamics simulation of external actions on the body's structure, followed by its relaxation. The inverse quality factor and its Fourier transform are estimated on the frequency equal to the reverse time of relaxation. The inverse quality factor is estimated from above by $10^{-4}$, which corresponds to experimental data. The Fourier transform is estimated from above by $10^{-2}$.