DOIONLINE

DOIONLINE NO - IJMPE-IRAJ-DOIONLNE-16567

Publish In
International Journal of Mechanical and Production Engineering (IJMPE)-IJMPE
Journal Home
Volume Issue
Issue
Volume-7,Issue-11  ( Nov, 2019 )
Paper Title
Experimental Analysis and Work-Hardening Prediction in 2024-T3 Aluminum Alloy from Tensile Stress-Strain Curves
Author Name
Manel Houria, Nedjoua Matougui, Brahim Mehdi, Nabil Kherrouba, Stephen Yue
Affilition
Department of Material Science and Engineering, Higher School of Mining and Metallurgy, Sidi Amar Chaiba (Ex CEFOS) BP N° 233 RP Annaba, Algeria Faculty of Physics, University of Sciences and Technology HouariBoumediene, BP 32 El-Alia, 16111 Algiers, Algeria. Research Center in Industrial Technologies CRTI, P.O. Box 64, Cheraga, 16014, Algeria Department of Metallurgical Engineering, McGill University, 3450 University Street, Montreal, Canada H3A-2A7
Pages
28-33
Abstract
The main purpose of this study is to analyse and predict the strain hardening behaviour of a 2024-T3 aluminum alloy from experimental simple test, in several directions relative to the rolling direction. First, an experimental device of simple tensile tests and the studied material are described. Second, the experimental results in terms of hardening curves are presented on three loading directions and three strain levels using several hardening laws. The stress-strain relationship was well described by the Ludwick equation at low strain level while, the Voce law was valid for middle and high strain one. In order to further refine the modelling part of this work, the Kocks curve is well identified at the macroscopic scale by smoothing the experimental hardening curves at different strains and directions. A good analyse of the strain hardening ability affected by anisotropic behaviour is obtained using calculated and identified limit strains in which the instability points were deduced on σ–ε and θ–ε curves intersection. Keywords - Aluminum Alloy, Anisotropy, Tensile Test, Metal sheet, Strain Hardening Law, Kocks Curves, Plastic Instability.
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