RT Journal Article
SR Electronic
A1 Varecha, Daniel
A1 Hrcek, Slavomir
A1 Bokuvka, Otakar
A1 Novy, Frantisek
A1 Trsko, Libor
A1 Nikolic, Ruzica
A1 Jambor, Michal
T1 Fatigue Safety Coefficients for Ultra - High Region of Load Cycles
JF Communications - Scientific Letters of the University of Zilina
YR 2020
VO 22
IS 4
SP 97
OP 102
DO 10.26552/com.C.2020.4.97-102
UL https://komunikacie.uniza.sk/artkey/csl-202004-0012.php
AB In this paper the authors introduce results from the field of the fatigue safety of selected steels in the region of ultra - high number of loading cycles. The fatigue tests were carried out at high frequency tension - compression loading (f = 20 kHz, T = 20 ± 5°, R = -1) in the region from N = 106 to N = 109 cycles. The fatigue safety coefficients were calculated by four methods (Goodman, Gerber, ASME elliptic and Soderberg). The percentage reduction of the fatigue safety coefficients (N = 109 vs. N = 106 cycles) was at Goodman, 7.99 / 10.83 %, Gerber, 5.27 / 8.26 %, ASME, 1.89 / 6.42 % and Soderberg, 6.51 / 10.25 %.