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TECHNICAL PAPERS

A Mechanical Material Model for Aluminium Extrusions During On-line Quenching

[+] Author and Article Information
Niklas Järvstråt, Stig Tjo̸tta

Hydro Aluminium a.s, R & D Karmo̸y, N-4265 Håvik, Norway

J. Eng. Mater. Technol 118(1), 114-119 (Jan 01, 1996) (6 pages) doi:10.1115/1.2805923 History: Received March 03, 1994; Revised August 06, 1994; Online November 27, 2007

Abstract

A material model is suggested, suitable for modelling the mechanical behaviour of aluminium sections, from directly after the extrusion and throughout the on-line quenching to room temperature. An experimental procedure is detailed, whereby all material parameters in the model can be determined by a single test. In the test, the specimen is subjected to a carefully prescribed load history in tension and compression during continuous cooling. Material parameters are determined for the AIMgSi alloy AA6060. Finally, the model is compared with conventional plasticity and viscoplasticity, and found to give much better accuracy.

Copyright © 1996 by The American Society of Mechanical Engineers
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