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TECHNICAL PAPERS

An Assessment of In-Service Stress Relaxation of a Work-Hardened Aluminum Magnesium Alloy

[+] Author and Article Information
L. Zhu, A. J. Beaudoin

Department of Mechanical and Industrial Engineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801

S. R. MacEwen

Alcan International, Limited, Kingston, Ontario, Canada

J. Eng. Mater. Technol 126(2), 157-163 (Mar 18, 2004) (7 pages) doi:10.1115/1.1647128 History: Received June 02, 2003; Revised November 21, 2003; Online March 18, 2004
Copyright © 2004 by ASME
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References

Figures

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Time dependent buckle pressure of can end stock
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An end shell, a buckled shell, and a buckled can end
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Bent beam relaxation test—test measurement
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Stress distribution throughout beam thickness and residual stress
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Plastic strain versus time during relaxation (R1=44.5 mm,T=20°C)
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Kinetics at different stress levels
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Kinetics at different temperatures
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Kinetics with MTS model
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Fitting with Hart’s model—stress evolution for R1 (44.5 mm)
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Fitting with Hart’s model—kinetics
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Modified Hart’s model
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Fitting with modified Hart’s model—stress evolution for R4 (25.9 mm)
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Fitting with modified Hart’s model—kinetics

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