Short Fatigue Crack Problem in a Steel

  1. Dr. P. J. Winkler
  1. Cevdet Kaynak

Published Online: 23 DEC 2005

DOI: 10.1002/3527606025.ch22

Materials for Transportation Technology, Volume 1

Materials for Transportation Technology, Volume 1

How to Cite

Kaynak, C. (2000) Short Fatigue Crack Problem in a Steel, in Materials for Transportation Technology, Volume 1 (ed P. J. Winkler), Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim, FRG. doi: 10.1002/3527606025.ch22

Editor Information

  1. DaimlerChrysler AG, Forschung und Technologie, Postfach 800 465, 81663 München, Germany; Tel.: 089–607 22393; Fax: 089–607 28627

Author Information

  1. Middle East Technical University, Metallurgical & Materials Eng. Dept., Ankara, Turkey

Publication History

  1. Published Online: 23 DEC 2005
  2. Published Print: 20 APR 2000

Book Series:

  1. EUROMAT 99

ISBN Information

Print ISBN: 9783527301249

Online ISBN: 9783527606023

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Keywords:

  • transportation technology;
  • materials;
  • automotive applications;
  • steel;
  • short fatigue crack problem

Summary

In this study, the short crack problem in steel with a high content of elongated inclusions was observed. Experimental short crack data were compared first with the predicted S-N curves determined using long crack growth parameters and secondly with the calculated lives using only long crack data and using both short crack and long crack data. All these life predictions revealed that long crack data alone cannot be used in fatigue lifetime analyses that treat short crack growth, because they can all lead to dangerous over-predicted lives.