Factors which Influence the Results in Tests of the Mechanical Strength of Glass

JSGT 1936 V20 T429-31

Numerous physical properties of glass are additive functions of the composition, and under the same experimental conditions the influence of composition on the mechanical properties is evident, but is greatly over-weighted by the effect of experimental conditions, such as size of test piece, time of loading, temperature and even the kind of fracture. A study of these factors is a necessary part of the development of glass as a structural material.

E. Albrecht