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Constitutive modelling and mechanical characterization of aluminium-based metal matrix composites produced by spark plasma sintering

Bolzon, Gabriella and Chiarullo, Enzo J. and Egizabal, Pedro and Estournès, Claude Constitutive modelling and mechanical characterization of aluminium-based metal matrix composites produced by spark plasma sintering. (2010) Mechanics of Materials, vol. 42 (n° 5). pp. 548-558. ISSN 0167-6636

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Official URL: http://dx.doi.org/10.1016/j.mechmat.2010.03.001

Abstract

Spark plasma sintering has been applied to the production of aluminium-based functionally graded material systems to be used in abrasive and high temperature conditions. The overall mechanical properties of these metal matrix composites were determined during the optimization phases of the production process by a fast and reliable identification procedure based on instrumented indentation, which can be easily performed on small specimens. The experimental information gathered from conical (Rockwell) indentation was used as input data for the calibration of the material parameters entering the elastic–plastic Drucker–Prager constitutive model. Eventually, the so identified material parameters were used to predict the result of pyramidal (Vickers) indentation, in order to validate the model selection and the output of the identification procedure. The good matching between modelling and experimental results for the different test configurations confirmed the soundness of the considered approach, especially evidenced on the light of the strong influence on the overall mechanical characteristics of the material microstructure and defectiveness resulting from the production process, which prevent the use of classical homogenization rules to evaluate the macroscopic material properties.

Item Type:Article
Additional Information:Thanks to Elsevier editor. The definitive version is available at http://www.sciencedirect.com The original PDF of the article can be found at Mechanics of Materials website :http://www.sciencedirect.com/science/journal/01676636
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS
Université de Toulouse > Institut National Polytechnique de Toulouse - INPT
Université de Toulouse > Université Paul Sabatier-Toulouse III - UPS
Other partners > INASMET-Tecnalia (SPAIN)
Other partners > Politecnico di Milano (ITALY)
Laboratory name:
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Deposited By: Leila Abdelouhab

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