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Method to Estimate Crack‐Tip Toughness from Bending Tests on Prenotched Bars
Journal Of The American Ceramic SocietyPeer ReviewedFett Theo +22000Journals
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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