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Abstract

Fretting fatigue is a potential risk for serious and unexpected damage in modern machine components. A test device has been developed for evaluating fretting fatigue and wear in complete and almost complete contacts with asymptotic edge effects. The device developed also allows plain fatigue testing. The fretting loading can be fully reversing or may fluctuate and it can be adjusted continuously. Macroscopic crack nucleation and growth are followed using strain gauge measurements. A series of fretting fatigue tests and a reference series of plain fatigue tests were carried out with EN 10083-1-34CrNiMo6 + QT steel. The fatigue life in the fretting series with a sharp, flat-ended pad was notably lower compared to the plain fatigue life, resulting in a strength reduction factor of 3.

Keywords

Fretting fatigue fretting test device complete contact

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Development of a complete contact fretting test device

Abstract

Keywords

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References