Czechoslovak Journal of Physics B

, Volume 20, Issue 7, pp 776–789 | Cite as

Plastic deformation at high strain rates

  • F. Dušek


In the present paper a new method, an original testing device and techniques for the study of plastic deformation in materials at high strain rates up to 2×104 s−1 achieved with the use of very short stress pulses (length within 10–20 μs) are described. The suggested method of yieldpoint determination respects the effects of “delayed plastic deformation” in the yield point at loading by very short intensive stress pulses. The investigations were carried out in polycrystalline ARMCO-iron and low-alloyed steel, and besides on the specimens irradiated by neutrons with integral dose 1·35×1019 ncm−2. The experimental results obtained are interpreted from the point of view of the present knowledge of the process of plastic deformation in bcc metals.


Plastic Deformation Yield Point High Strain High Strain Rate Present Knowledge 
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Copyright information

© Czechoslovak Academy of Sciences 1970

Authors and Affiliations

  • F. Dušek
    • 1
  1. 1.Institute of Physical MetallurgyCzechosl. Acad. Sci.BrnoCzechoslovakia

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