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Spectral methods plasticity modeling for fatigue damage estimation: 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 methods and a model taking into account confined elasto-plastic behavior. The model is associated with a local fatigue approach, 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 tests. Results presented here are focused on the uniaxial loading case.

Keywords

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

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