SYMPOSIA PAPER Published: 01 January 1993
STP24302S

Static Fatigue in Dilatant-Zone-Toughened Ceramics

Source

An approximate model is presented for the effect of crack-tip shielding due to dilatant zone toughening on subcritical crack growth in ceramics. This model relies on estimating the transformed zone from the applied stress intensity factor. Slow crack growth can be predicted with this model in ceramics toughened by the stress-triggered martensitic transformation in zirconia-bearing ceramics, if the slow' crack growth data for the same ceramic with the transformation either already completed by thermal aging or suppressed by stabilizers is known.

Author Information

Duan, K
Centre for Advanced Materials Technology, Department of Mechanical Engineering, University of Sydney, NSW, Australia
Cotterell, B
Centre for Advanced Materials Technology, Department of Mechanical Engineering, University of Sydney, NSW, Australia
Mai, Y-W
Centre for Advanced Materials Technology, Department of Mechanical Engineering, University of Sydney, NSW, Australia
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Details
Developed by Committee: E08
Pages: 788–796
DOI: 10.1520/STP24302S
ISBN-EB: 978-0-8031-5241-0
ISBN-13: 978-0-8031-1867-6