Detail publikačního výsledku

Shift of S-N curves of ferritic nodular cast iron due to loading cycle asymmetry

KOHOUT, J.; VĚCHET, S.

Originální název

Shift of S-N curves of ferritic nodular cast iron due to loading cycle asymmetry

Anglický název

Shift of S-N curves of ferritic nodular cast iron due to loading cycle asymmetry

Druh

Článek recenzovaný mimo WoS a Scopus

Originální abstrakt

Increasing the mean stress of loading cycle causes a shift of fatigue (Wöhler s or S-N) curves towards higher values of fatigue strength if the curves are represented by the upper stress of loading cycle in dependence on the number of cycles to fracture. A successful quantitative description of the shift in gigh-cycle region was published by Walker. The aim of the present paper consists in deriving relations that describe the shift of fatigue curves in the whole cycle region from UTS to permanent fatigue limit. Their applicability is demonstrated by successful fit of the family of tfatigue curves loading cycle asymetries when the curves are described by the Stromeyer qquation as well as by the Kohout and Vechet qquation. Also the limitation of Walker s approach in the case of high mean stresses is discussed and a certain solution is proposed.

Anglický abstrakt

Increasing the mean stress of loading cycle causes a shift of fatigue (Wöhler s or S-N) curves towards higher values of fatigue strength if the curves are represented by the upper stress of loading cycle in dependence on the number of cycles to fracture. A successful quantitative description of the shift in gigh-cycle region was published by Walker. The aim of the present paper consists in deriving relations that describe the shift of fatigue curves in the whole cycle region from UTS to permanent fatigue limit. Their applicability is demonstrated by successful fit of the family of tfatigue curves loading cycle asymetries when the curves are described by the Stromeyer qquation as well as by the Kohout and Vechet qquation. Also the limitation of Walker s approach in the case of high mean stresses is discussed and a certain solution is proposed.

Klíčová slova

materials science; ferritic nodular cast iron; fatigue behavior; S-N curve

Klíčová slova v angličtině

materials science; ferritic nodular cast iron; fatigue behavior; S-N curve

Autoři

KOHOUT, J.; VĚCHET, S.

Rok RIV

2010

Vydáno

22.03.2008

Nakladatel

KING FAGD UNIVERSITY OF TETROLEUM AND MINERALS, DGAGRAN 31261, SAUDI ARABIA

Místo

Dahran, Saudi Arabia

ISSN

1319-8025

Periodikum

ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING

Svazek

33

Číslo

1B

Stát

Království Saúdská Arábie

Strany od

213

Strany do

222

Strany počet

10

BibTex

@article{BUT48603,
  author="Jan {Kohout} and Stanislav {Věchet}",
  title="Shift of S-N curves of ferritic nodular cast iron due to loading cycle asymmetry",
  journal="ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING",
  year="2008",
  volume="33",
  number="1B",
  pages="213--222",
  issn="1319-8025"
}