Počet záznamů: 1  

Removal of plastic instabilities by reversal of the applied stress

  1. 1.
    0386752 - ÚFM 2013 RIV GB eng J - Článek v odborném periodiku
    Saada, G. - Kruml, Tomáš
    Removal of plastic instabilities by reversal of the applied stress.
    Philosophical Magazine. Roč. 93, 1-3 (2013), s. 256-271. ISSN 1478-6435. E-ISSN 1478-6443
    Institucionální podpora: RVO:68081723
    Klíčová slova: plasticity of metals * Bauschinger effect * Luders band * Portevin–Le Chatelier effect
    Kód oboru RIV: JG - Hutnictví, kovové materiály
    Impakt faktor: 1.427, rok: 2013

    This paper presents experiments showing that the inversion of the sense of the applied stress on a specimen deformed in tension (respectively compression) results in the removal of mechanical instabilities such as the yield point and the Lu¨ ders band in a ferritic steel or serrations in an Al–Mg alloy. We show that this behaviour is connected neither to the mechanical set-up (tension, torsion, . . . ), nor to the crystal geometry, but to the development of antagonist internal stresses during plastic flow. We develop a multi-domain analysis of the effect of these stresses and emphasize the importance of the analysis of the elastic–plastic transition.
    Trvalý link: http://hdl.handle.net/11104/0216450

     
     
Počet záznamů: 1  

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