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Production Engineering

, Volume 13, Issue 2, pp 189–200 | Cite as

Fatigue analysis of rolled components considering transient cyclic material behaviour and residual stresses

  • David Kühne
  • Christina Guilleaume
  • Martha Seiler
  • Peter Hantschke
  • Franz Ellmer
  • Thomas Linse
  • Alexander Brosius
  • Markus KästnerEmail author
Computer Aided Engineering
  • 108 Downloads

Abstract

Forming processes generally lead to residual stresses. Compressive residual stresses can have a beneficial impact on the fatigue life of components, which is demonstrated here in terms of a skew-rolled hybrid shaft-hub connection. In order to set the basis for a systematic investigation of this effect, a strategy for the evaluation of the influence of residual stresses on the fatigue resistance of formed components is proposed. It involves the determination of the expectable residual stresses through a simulation of the forming process as well as a fatigue analysis. While state-of-the-art fatigue concepts assume unchanging cyclic material behaviour throughout the entire fatigue life of the component, this assumption is not adequate for residual stress-afflicted components. Hence, a generalization to transient cyclic material behaviour with an asymmetry in tension and compression is introduced.

Keywords

Skew rolling Residual stresses Fatigue Notch strain concept Transient material behaviour 

Notes

Acknowledgements

Funded by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) within the Priority Program 2013 “Targeted Use of Forming Induced Residual Stresses in Metal Components” under the grant numbers KA 3309/7-1 and BR 3500/21-1.

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Copyright information

© German Academic Society for Production Engineering (WGP) 2018

Authors and Affiliations

  • David Kühne
    • 1
  • Christina Guilleaume
    • 3
  • Martha Seiler
    • 2
  • Peter Hantschke
    • 1
  • Franz Ellmer
    • 1
  • Thomas Linse
    • 2
  • Alexander Brosius
    • 3
  • Markus Kästner
    • 2
    Email author
  1. 1.Structural Durability GroupTU DresdenDresdenGermany
  2. 2.Chair of Forming and Machining ProcessesTU DresdenDresdenGermany
  3. 3.Chair of Computational and Experimental Solid MechanicsTU DresdenDresdenGermany

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