, Volume 28, Issue 7, pp 1910-1918

The effect of surface-limited microcracks on the effective Young's modulus of ceramics

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Abstract

The effect of aligned Vickers indentation cracks upon the Young's modulus of polycrystalline alumina bars was investigated. The measured Young's modulus for indented specimens was compared with the theoretical predictions based on a variety of models, including a model developed by the authors.