Banerjee, Rajat and Sarkar, Bijit Kumar (1997) Crack initiation by indentation fatigue in lead alkali and soda-lime glass. Journal of the American Ceramic Society, 80 (10). pp. 2722-2724. ISSN 0002-7820

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Abstract

An indentation technique using a conventional Vickers microhardness tester was used to evaluate fatigue properties of lead-alkali and soda-lime silica glasses. The specimens were indented repeatedly at the same point with subcritical loads until radial cracks were initiated. The number of cycles to initiate the cracks at different subcritical loads demonstrated typical fatigue curves for both glasses. The uniqueness of the experiment was that the diagonal lengths of the deformed cavity were observed to increase with the number of cycles. This increase of the deformed cavity for a certain number of cycles prior to the visibility of crack initiation was analyzed, correlating the elastic-plastic phenomenon and the accumulation of the residual stress in each cycle.

Item Type:	Article
Subjects:	Glass
Divisions:	Glass
Depositing User:	Bidhan Chaudhuri
Date Deposited:	17 Jul 2012 06:56
Last Modified:	17 Jul 2012 06:56
URI:	http://cgcri.csircentral.net/id/eprint/1595

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