Publication result detail

Low-Temperature and High -Temperature Anomalies in Temperature Shift of Stress - Lifetime Fatigue Curves

KOHOUT, J.; VĚCHET, S.

Original Title

Low-Temperature and High -Temperature Anomalies in Temperature Shift of Stress - Lifetime Fatigue Curves

English Title

Low-Temperature and High -Temperature Anomalies in Temperature Shift of Stress - Lifetime Fatigue Curves

Type

Peer-reviewed article not indexed in WoS or Scopus

Original Abstract

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.

English abstract

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.

Keywords

S-N curve; Low-temperature fatigue; High-temperature fatigue; Creep; Athermal processes of plastic deformation

Key words in English

S-N curve; Low-temperature fatigue; High-temperature fatigue; Creep; Athermal processes of plastic deformation

Authors

KOHOUT, J.; VĚCHET, S.

RIV year

2010

Released

01.01.2008

Publisher

Trans Tech Publications Ltd

Location

Stafa-Zurich Switzerland

ISBN

0255-5476

Periodical

Materials Science Forum

Volume

567-568

Number

5

State

Swiss Confederation

Pages from

113

Pages to

116

Pages count

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",
  pages="113--116",
  issn="0255-5476"
}