The Influence of Dynamic Preload on the Fatigue Endurance Limit of AMg6 Alloy

The Influence of Dynamic Preload on the Fatigue Endurance Limit of AMg6 Alloy

The influence of dynamic preload on the fatigue endurance limit of AMg6 alloy has been experimentally studied in a range of 10 9 loading cycles. It is established that prestraining up to 10% deformation at 10 3 s –1 rate leads to a 22% decrease in the fatigue endurance limit. A mathematical model is...

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Veröffentlicht in:Technical physics letters 2020-04, Vol.46 (4), p.397-399
Hauptverfasser: Bilalov, D. A., Oborin, V. A., Naimark, O. B., Narykova, M. V., Kadomtsev, A. G., Betekhtin, V. I.
Format: Artikel
Sprache:eng
Schlagworte:
Classical and Continuum Physics
Crack propagation
Fatigue failure
Fatigue limit
Physics
Physics and Astronomy
Prestressing
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Zusammenfassung:The influence of dynamic preload on the fatigue endurance limit of AMg6 alloy has been experimentally studied in a range of 10 9 loading cycles. It is established that prestraining up to 10% deformation at 10 3 s –1 rate leads to a 22% decrease in the fatigue endurance limit. A mathematical model is proposed that can adequately predict fatigue fracture, including that after preload.
ISSN:1063-7850
1090-6533
DOI:10.1134/S1063785020040197