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Journal of Materials Science

, Volume 30, Issue 20, pp 5192–5198 | Cite as

Cyclic fatigue of a sintered Al2O3/ZrO2 ceramic

  • Kai Duan
  • Yiu Wing Mai
  • B. Cotterell
Article

Abstract

A systematic experimental and theoretical study on the crack growth behaviour of a sintered Al2O3/ZrO2 ceramic under cyclic loading is presented. It is found that in the cyclic fatigue experiments conducted on the single-edge-notched beam (SENB) geometry, for similar testing conditions, the crack growth rates are significantly faster than those under static fatigue. Al2O3/ZrO2 therefore suffers genuine mechanical fatigue. Further experiments with the compact tension (CT) geometry show that the mechanical fatigue effect arises mainly from the degradation of the bridging mechanism. A theoretical analysis based on the compliance technique and a power law relationship between the crack-wake bridging stress and the crack-face separation is developed to evaluate quantitatively the degradation of the bridging stress due to cyclic fatigue.

Keywords

Polymer Fatigue Theoretical Analysis Material Processing Cyclic Loading 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Chapman & Hall 1995

Authors and Affiliations

  • Kai Duan
    • 1
  • Yiu Wing Mai
    • 1
  • B. Cotterell
    • 2
  1. 1.Centre for Advanced Materials Technology, Department of Mechanical and Mechatronic EngineeringThe University of SydneyAustralia
  2. 2.Department of Mechanical and Production EngineeringNational University of SingaporeSingapore

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