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Experimental Mechanics

, Volume 22, Issue 6, pp 197–201 | Cite as

Uniaxial stress-strain curves from a bending test

A single bending specimen can be used to generate both the tension and compression stress-strain curves of a material
  • R. A. Mayville
  • I. Finnie
Article

Abstract

A method which can be used to obtain both tension and compression stress-strain curves from a single bend test was first proposed in 1910. Curiously, this apparently useful technique has been very little application since that time. For this reason, the present investigation was conducted to examine the merits and shortcomings of the test. Three materials which show different stress-strain curves in tension and compression, beryllium, cast iron and prestrained copper, were studied to test the versatility of the method. A special four-point bend fixture, designed to minimize loading errors, was designed for this study and is described. Generally, the stress-strain curves obtained from bending and conventional tests showed good agreement for strains less than about five percent. Finally, some advantages and disadvantages of the bending tests are pointed out.

Keywords

Iron Copper Mechanical Engineer Fluid Dynamics Cast Iron 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

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    Herbert, H., “Über den Zusammenhang der Biegungselastizität des Gusseisens mit seiner Zug- and Druckelastizität” (On the Connection between Bending Deformation and Tension and Compression Deformation for Cast Iron),Mitt. und Forschungsarb. Ver. deut. Ing.,89,39–81 (1910).Google Scholar
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    Hoagland, R.G., Marschall, C.W. andDuckworth, W.H., “Reduction of Errors in Ceramic Bend Tests,”J. American Ceramic Society,59 (5–6),189–192 (May–June 1976).Google Scholar

Copyright information

© Society for Experimental Mechanics, Inc. 1982

Authors and Affiliations

  • R. A. Mayville
    • 1
  • I. Finnie
    • 2
  1. 1.Arthur D. Little, Inc.Cambridge
  2. 2.Department of Mechanical EngineeringUniversity of CaliforniaBerkeley

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