Abstract
Dynamic, cyclic and static fatigue testing was performed on soda lime silicate glass using indentation strength measurements. Using the conventional analysis, the cyclic and static fatigue data were inconsistent with the remaining data for the case when the indentations were annealed prior to testing. Using an analysis that included the measured variations in the fracture mechanics geometric parameters, all three data sets were consistent. Using a numerical analysis, the lifetime for materials in the static and cyclic fatigue tests was shown to be sensitive to variations in the stress intensity factor at short crack lengths. It is therefore very important to understand any crack size dependent of the fracture mechanics parameters in this crack size region for accurate lifetime predictions.
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