Characterization of the Residual Stress State in Commercially Fully Toughened Glass

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

Toughened glass is often used in load carrying elements due to the relatively high tensile strength compared with float glass. The apparent tensile strength of toughened glass is a combination of the pure material strength and the residual stresses imposed by the toughening process. This paper is concerned with an experimental characterization of the residual stress state for toughened glass. Results for the variation of residual stresses within 32 square specimens with a side length of 300 mm are investigated. The specimens varied in thickness and one group was glass with low iron content. The photoelastic constant was estimated from a four-point bending test. The experimental results revealed large variations in the residual stress state within each specimen and between groups of different thicknesses. The results are compared with a nonstandard fragmentation test, showing that the fragment size does not seem to be dependent on the local variations of the residual stress state in a specimen.
Original languageEnglish
JournalJournal of Materials in Civil Engineering
Volume22
Issue number2
Pages (from-to)179-185
ISSN0899-1561
DOIs
Publication statusPublished - 2010

Cite this

@article{1e5c8cd6f77e4aa7a25a0ee7e93aab8e,
title = "Characterization of the Residual Stress State in Commercially Fully Toughened Glass",
abstract = "Toughened glass is often used in load carrying elements due to the relatively high tensile strength compared with float glass. The apparent tensile strength of toughened glass is a combination of the pure material strength and the residual stresses imposed by the toughening process. This paper is concerned with an experimental characterization of the residual stress state for toughened glass. Results for the variation of residual stresses within 32 square specimens with a side length of 300 mm are investigated. The specimens varied in thickness and one group was glass with low iron content. The photoelastic constant was estimated from a four-point bending test. The experimental results revealed large variations in the residual stress state within each specimen and between groups of different thicknesses. The results are compared with a nonstandard fragmentation test, showing that the fragment size does not seem to be dependent on the local variations of the residual stress state in a specimen.",
author = "Nielsen, {Jens Henrik} and Olesen, {John Forbes} and Henrik Stang",
year = "2010",
doi = "10.1061/(ASCE)0899-1561(2010)22:2(179)",
language = "English",
volume = "22",
pages = "179--185",
journal = "Journal of Materials in Civil Engineering",
issn = "0899-1561",
publisher = "American Society of Civil Engineers",
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}

Characterization of the Residual Stress State in Commercially Fully Toughened Glass. / Nielsen, Jens Henrik; Olesen, John Forbes; Stang, Henrik.

In: Journal of Materials in Civil Engineering, Vol. 22, No. 2, 2010, p. 179-185.

Research output: Contribution to journalJournal articleResearchpeer-review

TY - JOUR

T1 - Characterization of the Residual Stress State in Commercially Fully Toughened Glass

AU - Nielsen, Jens Henrik

AU - Olesen, John Forbes

AU - Stang, Henrik

PY - 2010

Y1 - 2010

N2 - Toughened glass is often used in load carrying elements due to the relatively high tensile strength compared with float glass. The apparent tensile strength of toughened glass is a combination of the pure material strength and the residual stresses imposed by the toughening process. This paper is concerned with an experimental characterization of the residual stress state for toughened glass. Results for the variation of residual stresses within 32 square specimens with a side length of 300 mm are investigated. The specimens varied in thickness and one group was glass with low iron content. The photoelastic constant was estimated from a four-point bending test. The experimental results revealed large variations in the residual stress state within each specimen and between groups of different thicknesses. The results are compared with a nonstandard fragmentation test, showing that the fragment size does not seem to be dependent on the local variations of the residual stress state in a specimen.

AB - Toughened glass is often used in load carrying elements due to the relatively high tensile strength compared with float glass. The apparent tensile strength of toughened glass is a combination of the pure material strength and the residual stresses imposed by the toughening process. This paper is concerned with an experimental characterization of the residual stress state for toughened glass. Results for the variation of residual stresses within 32 square specimens with a side length of 300 mm are investigated. The specimens varied in thickness and one group was glass with low iron content. The photoelastic constant was estimated from a four-point bending test. The experimental results revealed large variations in the residual stress state within each specimen and between groups of different thicknesses. The results are compared with a nonstandard fragmentation test, showing that the fragment size does not seem to be dependent on the local variations of the residual stress state in a specimen.

U2 - 10.1061/(ASCE)0899-1561(2010)22:2(179)

DO - 10.1061/(ASCE)0899-1561(2010)22:2(179)

M3 - Journal article

VL - 22

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EP - 185

JO - Journal of Materials in Civil Engineering

JF - Journal of Materials in Civil Engineering

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