Study on Fatigue Crack Growth of 6065-T4 Aluminium Alloy at Different Stress Ratio

Mohd Suhairil Meon; Hazran Husain; Muhamad Fauzi Othman; J.B. Saedon; Mohd Izzul Khairi Zailani

doi:10.4028/www.scientific.net/AMM.393.435

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 393Study on Fatigue Crack Growth of 6065-T4 Aluminium...

Study on Fatigue Crack Growth of 6065-T4 Aluminium Alloy at Different Stress Ratio

Abstract:

Fatigue crack growth (FCG) rates of compact tension (CT) specimens of Aluminium alloy 6065-T4 were investigated at room temperature and constant amplitude loadings. Standard CT specimens with pre-cracked according to ASTM E647-E11 were subjected to mode I loading with three R-ratio (0.1, 0.3, and 0.5). Paris law has been used to model the stress ratio effect. A stereozoom microscope was used to observe the microstructure changes before and after the tests. The results indicated that the higher the stress ratio value (from 0.1 to 0.5), the faster the FCG rates on CT specimen of AA 6065-T4.

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Periodical:

Applied Mechanics and Materials (Volume 393)

Pages:

435-440

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.393.435

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Online since:

September 2013

Authors:

Mohd Suhairil Meon, Hazran Husain, Muhamad Fauzi Othman, J.B. Saedon, Mohd Izzul Khairi Zailani

Keywords:

Aluminium Alloy 6065-T4, Fatigue Crack Growth (FCG), Paris Law, Stress Ratio

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