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The Effect of Stress Concentrations on the Fatigue Resistance of a Duralumin Type Aluminium Alloy

Published online by Cambridge University Press:  28 July 2016

J. Y. Mann
J. Y. Mann*
Affiliation:
Aeronautical Research Laboratories, Department of Supply, Melbourne, Australiaat present at the University of Cambridge
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Extract

During the past hundred years much data on the fatigue behaviour of a wide range of materials has been accumulated and it is now well known, as a result of service failures and laboratory tests, that stress concentrators whether mechanically formed or inherent in the material, can cause serious reductions in endurance.

The work described in this note forms part of a project being conducted at the Aeronautical Research Laboratories, Melbourne, Australia on the effect of stress concentrations on the fatigue properties of materials. The primary aim of the project is to establish a series of fatigue curves for different materials under a wide range of theoretical stress concentration factors and to attempt to find a basis on which to assess the notch sensitivity of different materials. The first investigation was carried out on 24S-T aluminium alloy and tests on two additional aluminium alloys, annealed copper and an alloy steel are in progress.

Type
Technical Notes
Information
The Aeronautical Journal , Volume 60 , Issue 550 , October 1956 , pp. 681 - 685
Copyright
Copyright © Royal Aeronautical Society 1956

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References

1. Mann, J. Y. (1953). The Effect of Stress Concentrations on the Fatigue Resistance of 24S-T Aluminium Alloy. Australia, Department of Supply, Aeronautical Research Laboratories, Report A.R.L./SM. 217, November 1953.Google Scholar
2. Neuber, H. (1946). Theory of Notch Stresses: Principles for Exact Stress Calculation. J. W. Edwards Brothers, Inc. Ann Arbor, Michigan. 1946.Google Scholar
3. Johnstone, W. W. (1947). Methods of Investigating the Fatigue Properties of Materials. The Failure of Metals by Fatigue. Melbourne University Press, 1947, pp. 135–164.Google Scholar
4. Phillips, C. E. and Heywood, R. B. (1951). The Size Effect in Fatigue of Plain and Notched Steel Specimens Loaded under Reversed Direct Stress. Proceedings of the Institution of Mechanical Engineers, Vol. 165, pp. 113–124, 1951.Google Scholar