Evaluation of a Modified Cyclic Neuber Relation

[+] Author and Article Information
K. C. Wang, W. N. Sharpe

Department of Mechanical Engineering, The Johns Hopkins University Baltimore, MD 21218

J. Eng. Mater. Technol 113(3), 350-353 (Jul 01, 1991) (4 pages) doi:10.1115/1.2903417 History: Received May 01, 1990; Revised October 15, 1990; Online April 29, 2008


A preceding paper reported the results of biaxial strain measurements at the roots of notched aluminum specimen subjected to monotonic tension loading. The specimens had different amounts of constraints at the notch root, and it was shown that a modified version of the Neuber relation gave some improvement in its predictive capability. Several of those specimens were also subjected to fully reversed cyclic loading until microcracks formed at the notch roots, and the results of those biaxial strain measurements are reported here. The modified Neuber relation in the cyclic form was used to predict the strains at the notch roots. Reasonably close agreement between the predicted and the measured load-strain loops was found for all three levels of constraint.

Copyright © 1991 by The American Society of Mechanical Engineers
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