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Spectral methods plasticity modeling for fatigue damageestimation: experimental application – uniaxial case

Published online by Cambridge University Press:  30 May 2014

H. Rognon ,
T. Da Silva Botelho ,
I. Tawfiq  and
M. Bennebach
H. Rognon*
Affiliation:
LISMMA (EA2336) Supméca, 3 rue Fernand Hainaut, 93407 Saint-Ouen Cedex, France
T. Da Silva Botelho
Affiliation:
LISMMA (EA2336) Supméca, 3 rue Fernand Hainaut, 93407 Saint-Ouen Cedex, France
I. Tawfiq
Affiliation:
LISMMA (EA2336) Supméca, 3 rue Fernand Hainaut, 93407 Saint-Ouen Cedex, France
M. Bennebach
Affiliation:
CETIM, 52 avenue Félix Louat, BP 80067, 60304 Senlis Cedex, France
*
a Corresponding author:herve.rognon@supmeca.fr
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Abstract

In this paper, we present techniques for fatigue damage evaluation using spectral methodsand a model taking into account confined elasto-plastic behavior. The model is associatedwith a local fatigue approach, covering the whole endurance domain (low cycle and highcycle fatigue). It uses Neuber’s method and is valid for limited plasticity. To validatethis modeling, we perform a correlation between spectral methods, modified spectralmethods and experimental tests. Results presented here are focused on the uniaxial loadingcase.

Keywords

Spectral methodsplasticityrandom processrainflow countfatigue damage

Information

Type
Research Article
Information
Mechanics & Industry , Volume 15 , Issue 3 , 2014 , pp. 233 - 242
Copyright
© AFM, EDP Sciences 2014

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