Contribution to the Life Prediction of Aluminium Alloys Parts under Isothermal Fatigue

Adel Belkherchouche; Achraf Boudiaf; Mohamed El Amine Belouchrani

doi:10.4028/www.scientific.net/KEM.592-593.233

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HomeKey Engineering MaterialsKey Engineering Materials Vols. 592-593Contribution to the Life Prediction of Aluminium...

Contribution to the Life Prediction of Aluminium Alloys Parts under Isothermal Fatigue

Abstract:

Lifetime prediction, Isothermal fatigue, damage, cracking, aluminium alloys. Abstract. In this work, a tool for lifetime prediction of aluminium alloys parts employed under isothermal fatigue was developed. This tool is a computer code implemented in a "Visual-Fortran" environment and based on a coupled model of the elastoplastic damage accumulation presented by "Lemaitre and Chaboche" [. This model allows us to describe the damage evolution depending on the number of cycles until failure of the representative volume element (RVE). This failure results in the creation of a macro-crack, its propagation over loading cycles to reach a critical size which will cause the part breakdown. The crack growth phase cannot be neglected because it may contain a considerable number of cycles, this is why we have included in the developed model, this phase of crack growth after the initiation phase; it contains mainly the numerical integration of the "Paris" law.

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Periodical:

Key Engineering Materials (Volumes 592-593)

Pages:

233-236

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.592-593.233

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Online since:

November 2013

Authors:

Adel Belkherchouche, Achraf Boudiaf*, Mohamed El Amine Belouchrani

Keywords:

Aluminium Alloy, Continuous Damage, Cracking, Isothermal Fatigue, Lifetime Prediction

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