An approach for fatigue cracking failure prediction of ceramic rolling elements under Hertzian loading

From: Tribology Transactions | Date: April 1, 1999| Author: | Copyright information

In highly stressed rolling element contacts of ceramics, cracking along the edge of the rolling track is a well-recognized mode of failure. Using the maximum value of principal tensile stress which a material element experiences under the passage of the contact load as critical stress for failure, the failure probability of the ceramic rolling element is formulated according to Weibull probability theory using a volumetric flaw assumption. The formulation contains material parameters, such as fatigue exponent, crack growth constant and Weibull modulus, which are obtained previously from ...

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