Engineering Transactions, 12, 3, pp. 455-467, 1964

Wpływ Prędkości Odkształcania na Krzywa Umocnienia dla Aluminium

J. Klepaczko
Zakład Mechanik Ośrodków Ciągłych Instytutu Podstawowych Problemów Techniki PAN

The paper presents experimental results obtained with aluminium tube test pieces subject to torsion at fixe different rates ranging from tgy = 1,66-10-5 1/sec to tgy = 0,624 1/sec. The tests have been performed by means of a special machine constructed at the Plasticity Group of the IPPT.
As a result of experiments the influence of strain-rate on the strain-hardening curve has been found to be nonexisting in a certain velocity range. Empirical relations have been obtained describing this phenomenon. The paper contains also a brief discussion of the results obtained from the viewpoint of tests by other authors and that of physics of metals.

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Copyright © Polish Academy of Sciences & Institute of Fundamental Technological Research (IPPT PAN).


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