Communications - Scientific Letters of the University of Zilina 2009, 11(1):17-21 | DOI: 10.26552/com.C.2009.1.17-21

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

Josef Zapletal1, Stanislav Vechet1, Jan Kohout2, Petr Liskutin3
1 1Institute of Materials Science and Engineering, Faculty of Mechanical Engineering, Brno University of Technology, Brno, Czech Republic
2 Department of Mathematics and Physics, Faculty of Military Technology, University of Defence, Brno, Czech Republic
3 Institute of Materials Science and Engineering, Faculty of Mechanical Engineering, Brno University of Technology, Brno, Czech Republic

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: March 31, 2009  Show citation

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Zapletal, J., Vechet, S., Kohout, J., & Liskutin, P. (2009). Fatigue Lifetime of 7075 Aluminium Alloy from Ultimate Tensile Strength to Permanent Fatigue Limit. Communications - Scientific Letters of the University of Zilina, 11(1), 17-21. doi: 10.26552/com.C.2009.1.17-21
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