RT Journal Article
SR Electronic
A1 Zapletal, Josef
A1 Vechet, Stanislav
A1 Kohout, Jan
A1 Liskutin, Petr
T1 Fatigue Lifetime of 7075 Aluminium Alloy from Ultimate Tensile Strength to Permanent Fatigue Limit
JF Communications - Scientific Letters of the University of Zilina
YR 2009
VO 11
IS 1
SP 17
OP 21
DO 10.26552/com.C.2009.1.17-21
UL https://komunikacie.uniza.sk/artkey/csl-200901-0003.php
AB 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.