The Behaviour of Beams in Bending: A Report on Experiments on a Cast Magnesium Alloy in Bending Beyond the Limit of Proportionality

Abstract

The paper reports experiments carried out on beams in pure bending. The material used was a cast magnesium alloy AZ855. The beam sections were rectangular, circular, I‐section, T‐scction and diamond. One series of tests was carried out up to 1 per cent fibre strain. A second series of tests was carried out up to fracture. Tension and compression tests were also made on the material. The experimental results show conclusively that the usual theory of plastic bending is correct and that the tension‐compression stress‐strain curve of the material may be used to determine the bending moment‐curvature relationships, etc., for a beam. Measurements of neutral axis shift also confirm the predictions of plastic bending theory.

Citation

Gill, S.S. (1952), "The Behaviour of Beams in Bending: A Report on Experiments on a Cast Magnesium Alloy in Bending Beyond the Limit of Proportionality", Aircraft Engineering and Aerospace Technology, Vol. 24 No. 11, pp. 336-343. https://doi.org/10.1108/eb032227