Fatigue Lifetime of 7075 Aluminium Alloy from Ultimate Tensile Strength to Permanent Fatigue Limit

Josef Zapletal; Stanislav Vechet; Jan Kohout; Petr Liskutin

doi:10.26552/com.C.2009.1.17-21

Communications (Mar 2009)

Fatigue Lifetime of 7075 Aluminium Alloy from Ultimate Tensile Strength to Permanent Fatigue Limit

Josef Zapletal,
Stanislav Vechet,
Jan Kohout,
Petr Liskutin

Affiliations

Josef Zapletal: 1Institute of Materials Science and Engineering, Faculty of Mechanical Engineering, Brno University of Technology, Brno, Czech Republic
Stanislav Vechet: 1Institute of Materials Science and Engineering, Faculty of Mechanical Engineering, Brno University of Technology, Brno, Czech Republic
Jan Kohout: Department of Mathematics and Physics, Faculty of Military Technology, University of Defence, Brno, Czech Republic
Petr Liskutin: Institute of Materials Science and Engineering, Faculty of Mechanical Engineering, Brno University of Technology, Brno, Czech Republic

DOI: https://doi.org/10.26552/com.C.2009.1.17-21
Journal volume & issue: Vol. 11, no. 1
pp. 17 – 21

Abstract

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The aim of this paper is to study fatigue behaviour of 7075 aluminium alloy at room temperature for both important directions (longitudinal as well as transversal) with respect to the direction of forming. Smooth test bars were subjected to symmetrical push-pull loading at stresses which cover the whole range of lifetime from UTS to permanent fatigue limit. The results are presented above all as S-N curves fitted using suitable regression functions which lead to precise and reliable determination of fatigue limits.

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Published in Communications

ISSN: 1335-4205 (Print); 2585-7878 (Online)
Publisher: University of Žilina
Country of publisher: Slovakia
LCC subjects: Social Sciences: Transportation and communications; Technology: Engineering (General). Civil engineering (General): Transportation engineering
Website: https://komunikacie.uniza.sk/

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