D. A. Bilalov, V. A. Oborin, O. B. Neumark, M. V. Narykova, A. G. Kadomtsev, V. I. Betekhtin, “The influence of dynamic preload on the fatigue endurance limit of AMg6 alloy”, Pisma v Zhurnal Tekhnicheskoi Fiziki, 2020, Volume 46, Issue 8,Pages <nobr>44

This article is cited in 1 paper

The influence of dynamic preload on the fatigue endurance limit of AMg6 alloy

D. A. Bilalov^ab, V. A. Oborin^b, O. B. Neumark^b, M. V. Narykova^a, A. G. Kadomtsev^a, V. I. Betekhtin^a

^a Ioffe Institute, St. Petersburg
^b Institute of Continuous Media Mechanics UB RAS, Perm

Abstract: An experimental study of the influence of preliminary dynamic loading on the endurance limit of an AlMg6 alloy based on 10$^9$ cycles was carried out. It is shown that when loading to a strain of 10% with a strain rate of 10$^3$ s$^{-1}$, the endurance limit decreases by 22%. A mathematical model is proposed that is able to adequately predict fatigue failure, including after preloading.

Keywords: gigacycle fatigue, numerical simulation, fracture, fatigue limit.

Received: 06.11.2019
Revised: 06.11.2019
Accepted: 30.01.2020

DOI: 10.21883/PJTF.2020.08.49309.18098