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Thermal method to determine crack nucleation conditions under fretting loading

Proceedings of the 2012 International Conference on Quantitative InfraRed Thermography 2012 Score: 20 ? 0–100 AI score estimating relevance to the microplastics field. Papers below 30 are filtered from public browse.

B. Berthel, B. Berthel, B. Berthel, S. Fouvry S. Fouvry, S. Fouvry

Summary

This study developed a thermal imaging method to detect when cracks begin to form during fretting fatigue tests, where repeated small sliding motions cause surface damage. The technique provides a way to identify crack nucleation thresholds in contact fatigue testing.

The aim of this study is to develop a new experimental method to measure temperature field during a fretting test in a cylinder on flat contact configuration. Analyze of temperature evolution during a fretting test with constant loading shows that this latter can be decompose on a global warming and a sum on two periodic signal at f L and 2f L , where f L is the loading frequency. Analyze of the global warming during a fretting test with step by step increasing of tangential force unable us to develop an empirical method to determine the crack nucleation conditions.

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