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Article Dans Une Revue International Journal of Fracture Année : 2006

Material-independent crack arrest statistics: Application to indentation experiments

Résumé

An extensive experimental study of indentation and crack arrest statistics is presented for four different brittle materials (alumina, silicon carbide, silicon nitride, glass). Evidence is given that the crack length statistics can be described by a universal (\ie material independent) distribution. The latter directly derives from results obtained when modeling crack propagation as a depinning phenomenon. Crack arrest (or effective toughness) statistics appears to be fully characterized by two parameters, namely, an asymptotic crack length (or macroscopic toughness) value and a power law size dependent width. The experimental knowledge of the crack arrest statistics at one given scale thus gives access to its knowledge at all scales.
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Dates et versions

hal-00022299 , version 1 (05-04-2006)
hal-00022299 , version 2 (28-02-2007)

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Yann Charles, François Hild, Stéphane Roux, Damien Vandembroucq. Material-independent crack arrest statistics: Application to indentation experiments. International Journal of Fracture, 2006, 142, pp.51-67. ⟨10.1007/s10704-006-9022-9⟩. ⟨hal-00022299v2⟩
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