Edge strength model for structural glass based on the mirror zone depth

Author:

Vandebroek Marc1,Louter Christian2,Caspeele Robby1,Ensslen Frank3,Belis Jan1

Affiliation:

1. Laboratory for Research on Structural Models, Department of Structural Engineering, Ghent University, Ghent, Belgium

2. Steel Structures Laboratory (ICOM), School of Architecture, Civil and Environmental Engineering (ENAC), École Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland

3. Semcoglas Holding GmbH, Westerstede, Germany

Abstract

A reliable assessment of the edge strength becomes an important issue when designing structural glass elements in buildings. However, in the literature the edge strength of glass, dependent on the edge quality, is not well documented. Therefore, in this study an edge strength model was established and validated for commonly used edge finishings, namely ground, arrissed and cut. After testing at a high stress rate, the fracture mirror zone depth and the flaw depth were measured. For every edge finishing a reliable ratio between the fracture mirror zone depth and the initial flaw depth was found. A strength model based on the measurement of the mirror zone depth was established and validated, as the measurement of the mirror zone is much easier than the measurement of the flaw depth. Also, the mirror zone depth is independent of the loading rate and can be useful for forensic engineering.

Publisher

Thomas Telford Ltd.

Subject

Building and Construction,Civil and Structural Engineering

Reference27 articles.

Cited by 2 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

1. Experimental determination of failure strength in automotive windscreens using acoustic emission and fractography;Glass Structures & Engineering;2018-10-30

2. Editorial;Proceedings of the Institution of Civil Engineers - Structures and Buildings;2015-07

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