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Article Dans Une Revue Tribology International Année : 2014

Crack nucleation threshold under fretting loading by a thermal method

Résumé

The aim of this study is to develop a new, non-destructive, experimental method, based on the thermal response of materials, to determine crack nucleation threshold during a fretting test in a cylinder on flat contact configuration. The temperature evolution during a fretting test with constant loading showed that the latter can be decomposed into three parts: an overall thermal drift, and two periodic signals at fL and 2fL; where fL is the loading frequency. The results showed that the stabilized value of the drift and the periodic signals' amplitudes can be empirically related to the crack nucleation threshold; with result differences of less than 10% from those determined by destructive methods.
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Dates et versions

hal-01524153 , version 1 (17-05-2017)

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Bruno Berthel, Abdel-Rahman Moustafa, Eric Charkaluk, Siegfried Fouvry. Crack nucleation threshold under fretting loading by a thermal method. Tribology International, 2014, 76, pp.35-44. ⟨10.1016/j.triboint.2013.10.008⟩. ⟨hal-01524153⟩
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