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Modeling of Plasticity in Spectral Methods for Fatigue Damage Estimation of Narrowband Random Vibrations

[+] Author Affiliations
Herve Rognon, Tony Da Silva Botelho, Imad Tawfiq

Supmeca, Saint Ouen, France

Andre Galtier, Mohamed Bennebach

CETIM, Senlis, France

Paper No. DETC2011-48342, pp. 771-779; 9 pages
  • ASME 2011 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference
  • Volume 1: 23rd Biennial Conference on Mechanical Vibration and Noise, Parts A and B
  • Washington, DC, USA, August 28–31, 2011
  • Conference Sponsors: Design Engineering Division and Computers and Information in Engineering Division
  • ISBN: 978-0-7918-5478-5
  • Copyright © 2011 by ASME


In this paper, we present techniques for fatigue damage evaluation using spectral methods and a model taking into account elasto-plastic behaviour. The model is associated with a non linear fatigue law, covering the whole endurance domain (low cycle and high cycle fatigue). It uses Neuber’s method and is valid for limited plasticity. To validate this modeling, we perform a correlation between spectral methods, modified spectral methods and experimental data. We present here, the results obtained in the case of narrowband random vibrations.

Copyright © 2011 by ASME



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