The Influence Of Different Notches On Fatigue Lifetime Of Round Bar Specimens Made Of HDPE
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Vysoká škola báňská - Technická univerzita Ostrava
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Abstract
The presented paper introduces an approach
for fatigue lifetime predictions of notched round bar
specimens made of HDPE. This approach uses axial
stress distribution calculated from finite element anal-
ysis and experimental fatigue data. The fatigue results
obtained experimentally on the round bar specimens
with “v” notch with radius R = 0.4 mm and extremely
sharp notch are used for a determination of averaging
distance. The averaging distance is applied to speci-
men with different notch radius for determination of
its fatigue lifetime. The fatigue lifetime prediction of
a specimen with notch radius R = 0.1 mm is performed.
These fatigue lifetime predictions are compared to ex-
perimental fatigue data.
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Subject(s)
notches, fatigue, lifetime prediction, HDPE, critical distance
Citation
Sborník vědeckých prací Vysoké školy báňské - Technické univerzity Ostrava. Řada stavební. 2023, roč. 23, č. 2, s. 1-4 : il.