Abstract of: A numerical method for analysis of fracture statistics of glass and simulations of a double ring bending test

Authors

  • David T. Kinsella Division of Structural Mechanics, Faculty of Engineering LTH, Lund University, Lund
  • Kent Persson Division of Structural Mechanics, Faculty of Engineering LTH, Lund University, Lund

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DOI:

https://doi.org/10.7480/cgc.6.2389

Published

2018-05-17

Issue

Vol. 6 (2018): Challenging Glass 6

Section

Strength & Stability

License

Copyright (c) 2018 David T. Kinsella, Kent Persson

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

Keywords:

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Abstract

The results from a new numerical method for simulating the strength and fracture locations of small glass specimens subjected to double ring bending are compared with experimental data. The method implements the weakest-link
principle while assuming the existence of Griffith flaws. A Weibull distribution for the strength is simulated based on a single population of Pareto distributed crack sizes. The effect of using different fracture criteria is investigated. An alternative distribution is simulated based on two populations of flaws. This distribution models the apparent bimodality in the empirical data set. The numerical method is dependent on a representation of the surface flaws condition in glass. As new techniques become available for examining the surface characteristics, this numerical method is promising as a Glass Strengthmeans for modelling the strength better than current methods do.