Detail publikace

Walkers Approach and its Modification in the Haigh Diagram Construction

KOHOUT, J., VĚCHET, S.

Originální název

Walkers Approach and its Modification in the Haigh Diagram Construction

Typ

článek v časopise - ostatní, Jost

Jazyk

angličtina

Originální abstrakt

Walkers Approach of the description of the influence of loading cycle asymmetry in the high-cycle region consists in multiplying by a factor of Pm where P is one of used asymmetry parameters, defined by the quotien of maximum stress and stress amplitude. This approach can be relatively simply generalized also for low-cycle region as shown by the authors last year. Certain difficulty appears for high values parameter P when an unacceptable relation UTS < sigma c Pm (sigma c means fatigue limit) can be obtained. It has a very unpleasant consequence in the High diagram construction: the curve does not cross the UTS value on mean stress axis as asked. The paper proposes a modification which is identical with walkers approach for lower values of asymmetry parameter P and, on the other hand, does not allow to overstep the UTS value for high values of parameter P. The advantage of this modification is best presented in the Haigh diagram.

Klíčová slova v angličtině

Fatigue, Walkers approach, Haigh diagram

Autoři

KOHOUT, J., VĚCHET, S.

Rok RIV

2003

Vydáno

4. 12. 2002

ISSN

1429-6055

Periodikum

Zeszyty naukowe politechniki Opolskiej seria Mechanika

Ročník

17

Číslo

288/2002, z.75

Stát

Polská republika

Strany od

77

Strany do

80

Strany počet

4

BibTex

@article{BUT41112,
  author="Jan {Kohout} and Stanislav {Věchet}",
  title="Walkers Approach and its Modification in the Haigh Diagram Construction",
  journal="Zeszyty naukowe politechniki Opolskiej seria Mechanika",
  year="2002",
  volume="17",
  number="288/2002, z.75",
  pages="4",
  issn="1429-6055"
}