Phani, Kalyan Kumar (1988) Analysis of static and dynamic fatigue of polycrstalline alumina. Journal of Materials Science, 23 (11). pp. 3864-3868. ISSN 0022-2461

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The fatigue failure of polycrystalline alumina in a moist air environment at 30° C has been analysed in terms of a modified Weibull distribution function using fracture mechanics theory. The good correlation obtained between the fatigue test data and fracture mechanics theory indicates that fatigue is controlled by the slow crack growth of pre-existing flaws. The distribution of these pre-existing flaws can be represented by the modified Weibull distribution which provides an upper and a lower limit strength and thus is more realistic for the physical phenomena it represents. Comparison of proof-test predictions with experiment indicate that the proof test can be effective in eliminating weak samples from the population.

Item Type: Article
Subjects: Engineering Materials
Depositing User: Bidhan Chaudhuri
Date Deposited: 25 Nov 2013 13:33
Last Modified: 18 Mar 2016 17:53

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