A new type of pendulum impact apparatus is described for determining single and repeated impact strength of ceramics, It has been demonstrated that specimens of a “Sintox” alumina ceramic exhibit fatigue behaviour, having a high stress plateau followed by progressively increasing endurance with decrease in applied impact energy. A fatigue limit, at least from the engineering view point, has been drawn at high endurances (105 impacts). The influence of environment (static fatigue) and/or plastic deformation to explain the fatigue behaviour is suggested.
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Sarkar, B.K., Glinn, T.G.J. Impact fatigue of an alumina ceramic. J Mater Sci 4, 951–954 (1969). https://doi.org/10.1007/BF00555309
- Plastic Deformation
- Impact Strength
- Impact Energy
- High Endurance