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Modelling the influence of machined surface roughness on the fatigue life of aluminium alloy

Suraratchai, Monchai and Limido, Jérôme and Mabru, Catherine and Chieragatti, Rémy Modelling the influence of machined surface roughness on the fatigue life of aluminium alloy. (2008) International Journal of Fatigue, vol. 3 (n° 12). pp. 2119-2126.

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Official URL: http://dx.doi.org/10.1016/j.ijfatigue.2008.06.003

Abstract

The influence of machined surface roughness on the fatigue life of 7010 aluminium alloy has been investigated. Four-point bending specimen have been machined according to various machining conditions and tested in fatigue. In order to explain the high dependence of SN curves on the surface roughness of the specimen, an approach based on the finite element analysis of measured surface topography is proposed. Surface grooves due to machining are supposed to generate stress concentrations that are so calculated. A model of fatigue life prediction is developed, using this definition of local Kt.

Item Type:Article
Additional Information:Thanks to Elsevier. The original PDF can be found on the Esevier International Journal of Fatigue website : http://www.sciencedirect.com/science/journal/01421123
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:Other partners > IMPETUS Afea SAS (FRANCE)
Université de Toulouse > Institut Supérieur de l'Aéronautique et de l'Espace - ISAE
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Deposited By: Catherine Mabru

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