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A Rational Definition of Yield Strength*

Published online by Cambridge University Press:  28 July 2016

W. R. Osgood
W. R. Osgood*
Affiliation:
National Bureau of Standards, Washington, D.C.
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Abstract

Explicitly or implicitly the yield strength of a material is often used as a measure of incipient structural damage. With the yield strength determined by conventional methods, however, it cannot be said in general for two structural elements geometrically alike but of different materials that similar loads, producing maximum stresses equal to the yield strengths in the two cases, are simply related to the yield strengths. A definition of yield strength is proposed in this paper which often has the advantage that, for geometrically similar structures of different materials, loads producing maximum stresses equal to the yield strength are proportional to the yield strength.

Type
Research Article
Information
The Aeronautical Journal , Volume 44 , Issue 356 , August 1940 , pp. 653 - 656
Copyright
Copyright © Royal Aeronautical Society 1940

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Footnotes

*

Reprinted by courteous permission of the American Society of Mechanical Engineers from their Transactions of June, 1940.

References

* “Column Curves and Stress-Strain Diagrams,” by Osgood, W. R., National Bureau of Standards, Journal of Research, Vol. 9, Research Paper No. 492, October, 1932, pp. 571–582.Google Scholar

* “Column Strength of Tubes Elastically Restrained Against Rotation at the Ends,” by Osgood, W. R., National Advisory Committee for Aeronautics, Report No. 615, Washington, D.C., 1938.Google Scholar

* “ The Crinkling Strength and the Bending Strength of Round Aircraft Tubing,” by Osgood, W. R., National Advisory Committee for Aeronautics, Report No. 632, Washington, D.C., 1938.Google Scholar

* “The Column Strength of Two Extruded Aluminium-Alloy H-Sections,” by W. R. Osgood and Marshall Holt, National Advisory Committee for Aeronautics, Report No. 656 Washington, D.C., 1939.