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Instability origin of subgrain formation in plastically deformed materials
- 1.0358967 - ÚTIA 2012 RIV NL eng J - Journal Article
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. E-ISSN 1879-2197
R&D Projects: GA AV ČR IAA100750802
Institutional research plan: CEZ:AV0Z10750506
Keywords : Crystal plasticity * Energetic solutions * Gradient plasticity
Subject RIV: BA - General Mathematics
Impact factor: 1.194, year: 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.
Permanent Link: http://hdl.handle.net/11104/0196859
Number of the records: 1