Modeling of Fatigue Behavior Due to Shot Peening Conditions

  1. Prof. Dr.-Ing Lothar Wagner Chairman of ICSP8
  1. Marsha K. Tufft

Published Online: 7 FEB 2006

DOI: 10.1002/3527606580.ch68

Shot Peening

Shot Peening

How to Cite

Tufft, M. K. (2003) Modeling of Fatigue Behavior Due to Shot Peening Conditions, in Shot Peening (ed L. Wagner), Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim, FRG. doi: 10.1002/3527606580.ch68

Editor Information

  1. TU Clausthal, Institut für Werkstoffkunde und Werkstofftechnik, Agricolastr. 6, D-38678 Clausthal-Zellerfeld, Germany

Author Information

  1. GE Aircraft Engines, Cincinnati, OH, USA

Publication History

  1. Published Online: 7 FEB 2006
  2. Published Print: 12 MAY 2003

ISBN Information

Print ISBN: 9783527305377

Online ISBN: 9783527606580

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Keywords:

  • modeling of fatigue behavior;
  • shot peening

Summary

This paper examines six different approaches to assessing shot peen impact on life. Four approaches focus on fatigue crack initiation life, or rather the life to failure in the absence of pre-existing cracks. One method deals with crack propagation life. The final approach attempts to correlate surface residual stress state with residual life remaining at the time of inspection. Of these six approaches, only two offer general predictive tools: one of fatigue initiation life, the other of crack propagation life. The other methods provide alternate ways for analyzing and using specific fatigue and/or residual stress data.

This paper examines some of the challenges and limitations in using each of these methods. Where possible, these methods are demonstrated using data from a shot peening Design of Experiment (DOE) conducted on Rene’ 88DT, a nickel-base superalloy, as documented in references.