Published December 2021 | Version v1
Journal article

Data-driven classification of elementary rearrangement events in silica glass

  • 1. Institute of General Mechanics, RWTH Aachen University, Aachen 52062 (Germany)
  • 2. Research Lab for Applied and Computational Mathematics, RWTH Aachen University, Aachen 52062 (Germany)

Description

Reliable classification and prediction of elementary rearrangement events is a crucial step towards a profound understanding of the mechanical behavior of silica glass. Using various cyclic athermal quasistatic shear deformation protocols, we detect angle-changing and bond-breaking events in silica glass, both of which do or do not recover within a defined deformation protocol. We show in this contribution that data-driven approaches using rigorous statistical analyses and polynomial regression provide valuable insights into the mechanics of the marginally stable strain state of silica glass. We classify if a particular event recovers within a defined deformation protocol with up to 90% accuracy and predict the recovering strain with up to 95% accuracy.

Availability note (English)

Available from http://dx.doi.org/10.1016/j.scriptamat.2021.114179

Additional details

Identifiers

DOI
10.1016/j.scriptamat.2021.114179;
PII
S1359646221004590;

Publishing Information

Journal Title
Scripta Materialia
Journal Volume
205
Journal Page Range
vp.
ISSN
1359-6462
CODEN
SCMAF7

INIS

Country of Publication
United Kingdom
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
53120229
Subject category
S36: MATERIALS SCIENCE;
Descriptors DEI
ACCURACY; DEFORMATION; GLASS; POLYNOMIALS; SHEAR; SILICA; STRAINS
Descriptors DEC
FUNCTIONS; MINERALS; OXIDE MINERALS

Optional Information

Copyright
Copyright (c) 2021 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.