DOI: https://doi.org/10.26089/NumMet.v18r432

Mechanical losses in glassy silicon dioxide: results of atomistic simulation

Authors

  • F.V. Grigoriev
  • V.B. Sulimov
  • A.V. Tikhonravov

Keywords:

mechanical losses
molecular dynamics
glassy silicon dioxide

Abstract

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.

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Published

2017-09-20

Issue

Vol. 18 (2017): Issue 4.

Section

Section 1. Numerical methods and applications

Author Biographies

F.V. Grigoriev

Lomonosov Moscow State University
• Leading Researcher

V.B. Sulimov

Lomonosov Moscow State University
• Head of Laboratory

A.V. Tikhonravov

Lomonosov Moscow State University
• Director

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