Abstract
The dynamic fatigue behaviour of Al2O3 structural ceramics was studied by loading the stress on the specimen at a constant stress rate. The fracture strength of Al2O3 specimens under dynamic mode was constant up to a critical stress and then the lifetime abruptly decreased to zero as predicted theoretically for both the single cycle and the repeated loading. The material constant A was nearly constant and has no relation with loading mode and down speed for unnotched and notched specimen. The fracture strength obtained by theoretical calculation from the constants n and A was in good agreement with the measured value.
Original language | English |
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Pages (from-to) | 61-66 |
Number of pages | 6 |
Journal | Journal of Ceramic Processing Research |
Volume | 2 |
Issue number | 2 |
Publication status | Published - 2001 |
All Science Journal Classification (ASJC) codes
- Ceramics and Composites