Fretting fatigue of 7050-T7451 Al alloy: the influence of bulk mean stress. (November 2020)

• Record Type: Journal Article
• Authors: Vantadori, Sabrina; Zanichelli, Andrea; Araújo, Josè Alexander
• Is Part Of: International journal of fatigue. Volume 140(2020)
• Publication Date: 2020-11
• Subjects: Fretting fatigue -- Mean bulk stress -- Non-proportional loading -- 7050-T7451 Al alloy; Materials -- Fatigue -- Periodicals; Materials -- Fatigue; Periodicals; 620.1122
• DOI: 10.1016/j.ijfatigue.2020.105816
• Languages: English
• ISSNs: 0142-1123

Abstract

Highlights: Fretting fatigue characterisation of Al 7050-T7451 alloy specimens. The Carpinteri at al. criterion for fretting fatigue is used. The estimation of crack initiation direction is performed. The endurance strength is quantified. The estimation of fatigue lifetime is carried out. Abstract: Fretting fatigue is a combination of fatigue and micro-sliding due to fretting. The aim of the present work is to estimate crack initiation direction, endurance strength and lifetime of aluminium 7050-T7451 alloy specimens. The experimental campaign examined is devoted to investigate the role of the mean bulk stress on fretting fatigue behaviour. The above estimations are performed by using the Carpinteri et al. criterion for fretting fatigue. In such a context, the accuracy of the criterion is verified.