Probability distributions in the glass failure prediction model

Samir Blanchet, H. Scott Norville, Stephen M. Morse

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Glass, a brittle material, fractures under tensile stress acting over a time duration. Lateral loads, such as wind, acting on a simply supported rectangular glass lite, put one surface of the lite primarily into tension. ASTM E 1300 defines load resistance of glass as the uniform lateral loading acting over a duration of 3 seconds that is associated with a probability of breakage of 8 lites per 1000 at the first occurrence of the loading. To determine load resistance, the underlying window glass failure prediction model facilitates determination of a probability distribution of 3 second equivalent failure loads, P3. The glass failure prediction model is based on a Weibull distribution, and most people believe the distribution of P3 is, in fact, a Weibull distribution. However, the authors contend that this is not the case. This paper provides an explanation of the glass failure prediction model, its basis, and a discussion of the method for determining surface flaw parameters with an example. The authors demonstrate the distribution of the equivalent failure loads does not follow a Weibull distribution, and they will elucidate the relationship between the distribution of P3 and the Weibull distribution.

Original languageEnglish
Title of host publicationChallenging Glass 6
Subtitle of host publicationConference on Architectural and Structural Applications of Glass, CGC 2018 - Proceedings
EditorsChristian Louter, Freek Bos, Jan Belis, Fred Veer, Rob Nijsse
PublisherTU Delft Open
ISBN (Electronic)9789463660440
DOIs
StatePublished - Jan 1 2018
Event6th Challenging Glass Conference on Architectural and Structural Applications of Glass, CGC 2018 - Delft, Netherlands
Duration: May 17 2018May 18 2018

Publication series

NameChallenging Glass 6: Conference on Architectural and Structural Applications of Glass, CGC 2018 - Proceedings

Conference

Conference6th Challenging Glass Conference on Architectural and Structural Applications of Glass, CGC 2018
Country/TerritoryNetherlands
CityDelft
Period05/17/1805/18/18

Keywords

  • Equivalent failure load
  • Glass failure prediction model
  • Surface flaw parameters
  • Weibull distribution

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