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Metallurgy, Vol. 50 No. 2, 2011.

Original scientific paper

Approximation model of the stress-strain curve for deformation of aluminium alloys

J. Horsinka ; Faculty of Metallurgy and Materials Engineering, VŠB-TU Ostrava, Czech Republic
J. Kliber ; Faculty of Metallurgy and Materials Engineering, VŠB-TU Ostrava, Czech Republic
K. Drozd ; Faculty of Metallurgy and Materials Engineering, VŠB-TU Ostrava, Czech Republic
I. Mamuzić ; University of Zagreb, Zagreb, Croatia

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Abstract

The main purpose of this paper is to give a mathematical description of flow stress of examined aluminium alloys on the basis of upsetting tests perdormed in a servohydraulic plastomer. Deformation curves have been described by means of the Sellars-Tegart-Garofalo equation, with the aid of linear regression analysis by the neural network method implemented in the NEUREX program.

Keywords

alloys; regression analysis; neural networks; stress-strain curves; compression test

Hrčak ID:

62722

URI

https://hrcak.srce.hr/62722

Publication date:

1.4.2011.

Article data in other languages: croatian

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