Experimental study on glass edge machining flaw characterization

Journal Article (2014)
Author(s)

M. Lindqvist

C. Louter (École Polytechnique Fédérale de Lausanne)

Affiliation
External organisation
DOI related publication
https://doi.org/10.1016/j.engfracmech.2014.05.008
More Info
expand_more
Publication Year
2014
Affiliation
External organisation

Abstract

Knowledge of failure strength is the key to structural glass applications. However, the influence of the manufacturing process on the failure initiation at the glass edge is not well known. For this paper, small-scale glass specimens are tested in four-point bending, creating tensile stresses at the glass edge. Several edge finishings are investigated and their flaws detected concentrating on the failure initiating flaw. The characteristics of glass edge machining flaws are estimated by comparing obtained experimental values to existing time-dependent strength theory described in fracture mechanics. As a conclusion, typical edge flaws in industrial glass edge finishings are characterized and used as a basis for glass failure strength estimations.

No files available

Metadata only record. There are no files for this record.