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Abstract

The object of the tests described in this paper was to determine the dynamic yield strengths of various materials when subjected to a certain type of dynamic loading. Such tests have been carried out on fifteen metals, using constant loads of 5 and 10 milliseconds duration. These loads were produced by the longitudinal impact of a brass bar 58 feet long. Measurements of stress and strain were made during the tests, and a comparison of static and dynamic strengths was made on the basis of a 0·1 per cent proof stress when possible. It was found that for a material with a yield point there is a delay period before yielding (under constant applied stress), and for the mild steel a further investigation was made using longer load durations, which were produced by an arrangement of buckled struts.

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References

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10.

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The Behaviour of Metals under Tensile Loads of Short Duration

Abstract

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