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Evaluation of a Fundamental Approach for the Statistical Analysis of Fracture
Author(s) -
EVANS A. G.,
JONES R. L.
Publication year - 1978
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.1978.tb09261.x
Subject(s) - flexural strength , fracture (geology) , materials science , ultimate tensile strength , ceramic , composite material , range (aeronautics) , silicon nitride , layer (electronics)
Generalized relations between the strength distribution function and derivatives of the fracture probability are developed for five widely used testing methods for measuring the strengths of ceramic materials. The derived relations for three of these methods are used to analyze room‐temperature fracture strength data for hot‐pressed silicon nitride. Fracture of this material is shown to be controlled by internal flaws at strength levels up to and including the range where the tensile and flexural distributions overlap, but it is primarily surface‐flaw‐controlled toward the upper end of the flexural distribution.