Weakest-link failure predictions for ceramics III : uniaxial and biaxial bend tests on alumina

B.J. Smet, de, P.W. Bach, H.F. Scholten, L.J.M.G. Dortmans, G. With, de

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11 Citations (Scopus)
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Abstract

To obtain a complete and reliable data set of Weibull parameters for the validation of numerical models for weakest-link failure probability calcns. on ceramic components, uniaxial (3- and 4-point) and biaxial (ball-on-ring and ring-on-ring) bend tests were performed on 2 aluminas. With the uniaxial data sets, the biaxial expts. were predicted applying 2 fracture criteria, the mode I failure and the max. noncoplanar strain energy release rate for penny-shaped cracks. The best fitting criterion for the materials turns out to be different showing a marked difference in their shear stress sensitivity. [on SciFinder (R)]
Original languageEnglish
Pages (from-to)101-107
JournalJournal of the European Ceramic Society
Volume10
Issue number2
DOIs
Publication statusPublished - 1992

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