Edge Strength of Window Glass by Mechanical Test
Publication: Journal of Engineering Mechanics
Volume 120, Issue 5
Abstract
A mechanical test is described that can be used to measure the edge strength of annealed and heat‐strengthened glass. The mechanical test apparatus stresses only one of the two edge‐lines on the edge of a glass specimen. The testing concept employs the theory of unsymmetrical bending. The test device loads glass specimens in a manner that places tensile stresses on the tested edge‐line while keeping the other edge‐lines at zero stress or in compression. In annealed glass tests, the scored edge‐line was found to be 20% weaker than the edge‐line opposite the scored edge‐line. Comparisons between the edge strengths of annealed and heat strengthened glass revealed that the mean edge strength of heat strengthened glass is larger than that of annealed glass by about 50%.
Get full access to this article
View all available purchase options and get full access to this article.
References
1.
Boresi, A. P., Sidebottom, O. M., Seely, F. B., and Smith, J. O. (1978). Advanced mechanics of materials, 3rd ed., John Wiley, New York, N.Y.
2.
Dickenson, J. H. (1951). Glass: a handbook for students and technicians. Chemical Publishing Company, Inc., New York, N.Y.
3.
Griffith, A. A. (1924). “Theory of rupture.” Proc. 1st Int. Cong. Appl. Mech., Delft University, Delft, The Netherlands, 55–63.
4.
Jacob, L. J. S. (1978). “Aspects of thermally induced fracture of solar control glasses used in buildings.” MS thesis, Mechanical Engineering Dept., University of Sydney, Sydney, Australia.
5.
Jones, G. O. (1949). “The interpretation of the experimental data on the strength of glass.” J. Soc. Glass Technol., 33, 120–137.
6.
LaCourse, W. C. (1972). “The strength of glass.” Proc. of Tutorial Symp.: introduction to glass science, Plenum Press, New York, N.Y., 451–512.
7.
Levengood, W. C. (1958). “Effect of origin flow characteristics on glass strength.” J. Appl. Physics, 29(5), 820–826.
8.
Libby‐Owens‐Ford Co. (1970). “Glass for Construction.” LOF Rep. 4a/Li, Libby‐Owens‐Ford Co., Toledo, Ohio.
9.
Orr, L. (1972). “Practical analysis of fractures in glass windows.” Mat. Res. and Standards, 12(1), 21–48.
10.
PPG Industries. (1965). “Glass product recommendations: structural.” Tech. Service Rep. No. 101, Pittsburgh Plate Glass Co., Pittsburgh, Pa.
11.
PPG Industries (1979). “Installation recommendations: tinted and reflective glass.” Tech. Service Rep. No. 130, Pittsburgh Plate Glass Co., Pittsburgh, Pa.
12.
Pantelides, C. P., and Minor, J. E. (1991). “Evaluation of the edge strengths of annealed and heat strengthened glass.” Glass Research Program, Department of Civil Engineering, Univ. of Missouri‐Rolla, Rolla, Mo.
13.
Popov, E. P. (1968). Introduction to mechanics of solids. Prentice Hall, Inc., Englewood Cliffs, N.J., 485–487.
14.
Ross, S. S. (1984). Construction Disasters: Design Failures, Causes and Prevention (Engineering News‐Record Book), McGraw‐Hill Book Company, New York.
15.
Shand, E. B. (1961). “Fracture velocity and fracture energy of glass in the fatigue range.” J. Am. Ceramic Soc., 44(1), 21–26.
16.
Stanworth, J. E. (1950). Physical properties of glass. Clarendon Press, Oxford, England.
17.
Walker, G. R., and Muir, L. H. (1984). “An investigation of the bending strength of glass louvre blades.” Proc., 9th Australian Conf. on the Mech. of Struct. and Mat., University of Sydney, Sydney, Australia, 122–126.
Information & Authors
Information
Published In
Journal of Engineering Mechanics
Volume 120 • Issue 5 • May 1994
Pages: 1076 - 1090
Copyright
Copyright © 1994 American Society of Civil Engineers.
History
Received: Apr 9, 1992
Published online: May 1, 1994
Published in print: May 1994
Authors
Metrics & Citations
Metrics
Citations
Download citation
If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download.