Počet záznamů: 1

Instability origin of subgrain formation in plastically deformed materials

  1. 1.
    0358967 - UTIA-B 2012 RIV NL eng J - Článek v odborném periodiku
    Kratochvíl, J. - Kružík, Martin - Sedláček, R.
    Instability origin of subgrain formation in plastically deformed materials.
    International Journal of Engineering Science. Roč. 48, č. 11 (2010), s. 1401-1412 ISSN 0020-7225
    Grant CEP: GA AV ČR IAA100750802
    Výzkumný záměr: CEZ:AV0Z10750506
    Klíčová slova: Crystal plasticity * Energetic solutions * Gradient plasticity
    Kód oboru RIV: BA - Obecná matematika
    Impakt faktor: 1.194, rok: 2010

    The review is focused on two methods of formulation and solution of the subgrain formation problem: an energetic approach and a model of incremental deformations. Both methods are based on a reduced single slip version of crystal plasticity. The mathematical analysis of the energetic approach is done for a single slip model only; in the incremental approach the deformation are assumed small, hence, multi slip can be treated as a sum of single slips. The energetic approach has been employed in analysis of the crystal plasticity model of shear and kink bands. The incremental higher strain gradient model provides an insight into an initial stage of the subgrain formation and the mechanism controlling the subgrain size.
    Trvalý link: http://hdl.handle.net/11104/0196859