Publication detail

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

KOHOUT, J. VĚCHET, S.

Original Title

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

Type

journal article - other

Language

English

Original Abstract

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.

Keywords

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

Authors

KOHOUT, J.; VĚCHET, S.

RIV year

2008

Released

22. 3. 2008

Publisher

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

Location

Dahran, Saudi Arabia

ISBN

1319-8025

Periodical

ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING

Year of study

33

Number

1B

State

Kingdom of Saudi Arabia

Pages from

213

Pages to

222

Pages count

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"
}