New Nonlinear Damage Law by Fatigue Based on the Curve of Bastenaire

B. Tikri; Nadjitonon Ngarmaim

New Nonlinear Damage Law by Fatigue Based on the Curve of Bastenaire

B. Tikri * §

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Nadjitonon Ngarmaim

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robert

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§ Institut Universitaire Polytechnique de Mongo-Tchad,

New Nonlinear Damage Law by Fatigue Based on the Curve of Bastenaire

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Abstract

This article focuses on the improvement of the nonlinear damage law by fatigue of Chabobe. It is a solution to the dependency problem of parameters of the law vis-à-vis the SN curve of the material used for their production. The determination of the parameters, or wedging of the law, has the drawback of smoothing by linear regression the points of SN curve in a particular space specific to the law, called wedging space. So doing, the law is based on the regression line points, different from the actual SN curve of the material. The evolution of fatigue damage and hence the lifetime are then modified. The main idea is to develop a new damage law model, such as the SN curve generated by this formalism is identical to the one used to describe the fatigue behavior of the material under constant amplitude. In the present case, it’s obviously the SN curve of Bastenaire model.

References

5 Cites in Article

Reference Format

Jean Lemaitre,Jean-Louis Chaboche,Ahmed Benallal,Rodrigue Desmorat (2004). 8. Endommagement.
K Ngargueudedjim (2003). Contribution à l'étude des lois d'endommagement en fatigue.
B Weber (1999). Fatigue multiaxiale des structures industrielles sous chargement quelconque.
B Tikri (2007). A. Annexe. Éléments de mécanique de la rupture en élasticité linéaire.
S Zaim,I Huther,J Flavenot,J Robert (2006). Fatigue life prediction of notched component under uniaxial variable amplitude loading.

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Funding

No external funding was declared for this work.

Conflict of Interest

The authors declare no conflict of interest.

Ethical Approval

No ethics committee approval was required for this article type.

Data Availability

Not applicable for this article.

How to Cite This Article

B. Tikri, Nadjitonon Ngarmaim, robert. 2014. "New Nonlinear Damage Law by Fatigue Based on the Curve of Bastenaire". Global Journal of Research in Engineering - A : Mechanical & Mechanics GJRE-A Volume 14 (GJRE Volume 14 Issue A4).

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GJRE Volume 14 Issue A4

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Journal Specifications

Crossref Journal DOI 10.17406/gjre

Print ISSN 0975-5861

e-ISSN 2249-4596

Keywords

bastenaire damage law Lifetime uniaxial fatigue wedging

Classification

GJRE-A Classification FOR Code: 091399

Submission ReceivedDecember 8, 2013
Peer Review Double Blind
Handling Editor
Accepted January 1, 2014
Published January 15, 2014

Version of record

v1.2

Issue date

July 9, 2014

Language

English

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Article Matrices

Total Score: 106

Country: Cameroon

Subject: Global Journal of Research in Engineering

Authors: B. Tikri, N. NgarmaAm, M. Barka, N. Kimtangar, F. Pennec, J.-L. Robert (PhD/Dr. count: 0)

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Publish Date: 2014 01, Wed

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