Abstract
Most metals when stressed, after a certain elastic deformation, undergo a permanent elongation starting at the ‘yield point’. In some materials, the stress then falls to a lower value; an ‘upper yield point’ occurs. Its existence has been doubted, but was recently well established for tensile stress1. Its physical significance has scarcely been explained. Further, its existence in bending tests has been denied.
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Weibull, W., Jernkontorets Annaler, 126, 333 (1942).
As expected by Benedicks, C., Jernkontorets Annaler, 129, 557 (1945).
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BENEDICKS, C., SKORSKI, R. Upper Yield Point: Occurrence in Bending Tests and Signification. Nature 160, 399 (1947). https://doi.org/10.1038/160399a0
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DOI: https://doi.org/10.1038/160399a0
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