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Method to Estimate Crack‐Tip Toughness from Bending Tests on Prenotched Bars
Author(s) -
Fett Theo,
Munz Dietrich,
Thun Gerhard
Publication year - 2000
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.1151-2916.2000.tb01209.x
Subject(s) - materials science , composite material , strain gauge , bending , toughness , fracture toughness , standard deviation , mathematics , statistics
A strain‐gauge procedure that enables determination of the crack‐tip toughness ( K I0 ) from bending‐strength tests is described. The procedure is applied to coarse‐grained alumina and yields an average K I0 value of 2.51 MPa·m 1/2 , with a standard deviation of 0.16 MPa·m 1/2 .
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