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Artigo Científico | Fratura | Inglês | 03/03/2003
Autores: J. A. Rodrigues, Sérgio Francisco dos Santos
Palavras-chave: fractal dimension, fracture toughness, roughness, work of fracture
Resumo: The purpose of this work is to show the correlation between the fractal dimension, D, and mechanical properties such as work of fracture, gwof, and fracture toughness, KIc. Alumina-mullite-zirconia composites were characterized by the slit-island method, SIM, to obtain values of D and its fractional part, D*. The fracture surface roughness was also evaluated using a cyclic voltametric method. It will be shown that there is a positive experimental dependency of gwof on D* and that there is not an evident correlation between KIc and D*.
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