Detail publikace
Low-Temperature and High -Temperature Anomalies in Temperature Shift of Stress - Lifetime Fatigue Curves
KOHOUT, J. VĚCHET, S.
Český název
Low-Temperature and High -Temperature Anomalies in Temperature Shift of Stress - Lifetime Fatigue Curves
Anglický název
Low-Temperature and High -Temperature Anomalies in Temperature Shift of Stress - Lifetime Fatigue Curves
Typ
článek v časopise - ostatní, Jost
Jazyk
en
Originální abstrakt
Most families of S-N curves determined at various temperatures present certain general regularities on whose basis the Basquin equation describing finite-life S-N curves can be generalized for various temperatures. This equation can be represented by straight lines with common slope if log-log fit for stress vs. temperature dependence is used. Deviations from these straight lines (anomalies) are evidence that additional degradation mechanisms are effective besides fatigue, whose temperature dependences differ from the mentioned temperature dependence of fatigue strength. In high-temperature region it is most often cyclic creep, in low-temperature region atermal processec of plastic deformation can play significant role in fatigue failure.
Český abstrakt
Most families of S-N curves determined at various temperatures present certain general regularities on whose basis the Basquin equation describing finite-life S-N curves can be generalized for various temperatures. This equation can be represented by straight lines with common slope if log-log fit for stress vs. temperature dependence is used. Deviations from these straight lines (anomalies) are evidence that additional degradation mechanisms are effective besides fatigue, whose temperature dependences differ from the mentioned temperature dependence of fatigue strength. In high-temperature region it is most often cyclic creep, in low-temperature region atermal processec of plastic deformation can play significant role in fatigue failure.
Anglický abstrakt
Most families of S-N curves determined at various temperatures present certain general regularities on whose basis the Basquin equation describing finite-life S-N curves can be generalized for various temperatures. This equation can be represented by straight lines with common slope if log-log fit for stress vs. temperature dependence is used. Deviations from these straight lines (anomalies) are evidence that additional degradation mechanisms are effective besides fatigue, whose temperature dependences differ from the mentioned temperature dependence of fatigue strength. In high-temperature region it is most often cyclic creep, in low-temperature region atermal processec of plastic deformation can play significant role in fatigue failure.
Klíčová slova česky
S-N křivky; Nízkoteplotní únava; Vysokoteplotní únava; Creep; Atermální procesy plastické deformace
Klíčová slova anglicky
S-N curve; Low-temperature fatigue; High-temperature fatigue; Creep; Athermal processes of plastic deformation
Rok RIV
2008
Vydáno
01.01.2008
Nakladatel
Trans Tech Publications Ltd
Místo
Stafa-Zurich Switzerland
ISSN
0255-5476
Časopis
Materials Science Forum
Ročník
567-568
Číslo
5
Strany od–do
113–116
Počet stran
4
BIBTEX
@article{BUT48932,
author="Jan {Kohout} and Stanislav {Věchet},
title="Low-Temperature and High -Temperature Anomalies in Temperature Shift of Stress – Lifetime Fatigue Curves",
journal="Materials Science Forum",
year="2008",
volume="567-568",
number="5",
month="January",
pages="113--116",
publisher="Trans Tech Publications Ltd",
address="Stafa-Zurich Switzerland",
issn="0255-5476"
}