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Statements

Subject Item
n2:RIV%2F00216208%3A11320%2F14%3A10284306%21RIV15-MSM-11320___
rdf:type
skos:Concept n22:Vysledek
rdfs:seeAlso
http://iopscience.iop.org/1757-899X/63/1/012130
dcterms:description
Looking at severe plastic deformation experiments, it seems that crystalline materials at yield behave as a special kind of anisotropic, highly viscous fluids flowing through an adjustable crystal lattice space. High viscosity provides a possibility to describe the flow as a quasi-static process, where inertial and other body forces can be neglected. The flow through the lattice space is restricted to preferred crystallographic planes and directions causing anisotropy. In the deformation process the lattice is strained and rotated. The proposed model is based on the rate form of the decomposition rule: the velocity gradient consists of the lattice velocity gradient and the sum of the velocity gradients corresponding to the slip rates of individual slip systems. The proposed crystal plasticity model allowing for large deformations is treated as the flow-adjusted boundary value problem. As a test example we analyze a plastic flow of an single crystal compressed in a channel die. We propose three step algorithm of finite element discretization for a numerical solution in the Arbitrary Lagrangian Eulerian (ALE) configuration. Looking at severe plastic deformation experiments, it seems that crystalline materials at yield behave as a special kind of anisotropic, highly viscous fluids flowing through an adjustable crystal lattice space. High viscosity provides a possibility to describe the flow as a quasi-static process, where inertial and other body forces can be neglected. The flow through the lattice space is restricted to preferred crystallographic planes and directions causing anisotropy. In the deformation process the lattice is strained and rotated. The proposed model is based on the rate form of the decomposition rule: the velocity gradient consists of the lattice velocity gradient and the sum of the velocity gradients corresponding to the slip rates of individual slip systems. The proposed crystal plasticity model allowing for large deformations is treated as the flow-adjusted boundary value problem. As a test example we analyze a plastic flow of an single crystal compressed in a channel die. We propose three step algorithm of finite element discretization for a numerical solution in the Arbitrary Lagrangian Eulerian (ALE) configuration.
dcterms:title
Plastic deformation treated as material flow through adjustable crystal lattice Plastic deformation treated as material flow through adjustable crystal lattice
skos:prefLabel
Plastic deformation treated as material flow through adjustable crystal lattice Plastic deformation treated as material flow through adjustable crystal lattice
skos:notation
RIV/00216208:11320/14:10284306!RIV15-MSM-11320___
n3:aktivita
n11:P n11:I
n3:aktivity
I, P(GAP107/12/0121)
n3:dodaniDat
n16:2015
n3:domaciTvurceVysledku
Minakowski, Piotr n10:1315595 n10:6862616 n10:5746167 n10:5121515
n3:druhVysledku
n17:D
n3:duvernostUdaju
n4:S
n3:entitaPredkladatele
n20:predkladatel
n3:idSjednocenehoVysledku
36816
n3:idVysledku
RIV/00216208:11320/14:10284306
n3:jazykVysledku
n13:eng
n3:klicovaSlova
Severe plastic deformation; Crystal plasticity models; Single crystals Arbitrary Lagrangian Eulerian; Crystalline materials; Crystal lattices; Anisotropy
n3:klicoveSlovo
n7:Crystal%20plasticity%20models n7:Crystalline%20materials n7:Single%20crystals%20Arbitrary%20Lagrangian%20Eulerian n7:Anisotropy n7:Severe%20plastic%20deformation n7:Crystal%20lattices
n3:kontrolniKodProRIV
[D907B7B8065C]
n3:mistoKonaniAkce
Metz, Francie
n3:mistoVydani
neuveden
n3:nazevZdroje
IOP Conference Series: Materials Science and Engineering [online]
n3:obor
n5:BM
n3:pocetDomacichTvurcuVysledku
5
n3:pocetTvurcuVysledku
5
n3:projekt
n19:GAP107%2F12%2F0121
n3:rokUplatneniVysledku
n16:2014
n3:tvurceVysledku
Málek, Josef Kružík, Martin Minakowski, Piotr Kratochvíl, Jan Hron, Jaroslav
n3:typAkce
n18:WRD
n3:zahajeniAkce
2014-06-30+02:00
s:issn
1757-899X
s:numberOfPages
11
n15:doi
10.1088/1757-899X/63/1/012130
n8:hasPublisher
IOP PUBLISHING LTD
n9:organizacniJednotka
11320