A crystal plasticity model of a formation of a deformation band structure

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F15%3A00239550" target="_blank" >RIV/68407700:21110/15:00239550 - isvavai.cz</a>
Alternative codes found
RIV/67985556:_____/15:00456300 RIV/00216208:11320/15:10334587
Result on the web
<a href="http://dx.doi.org/10.1080/14786435.2015.1090638" target="_blank" >http://dx.doi.org/10.1080/14786435.2015.1090638</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1080/14786435.2015.1090638" target="_blank" >10.1080/14786435.2015.1090638</a>

Result language
angličtina
Original language name
A crystal plasticity model of a formation of a deformation band structure
Original language description
The formation of deformation bands with the typically alternating sign of the misorientation across their boundaries is interpreted as spontaneous deformation instability caused by anisotropy of hardening. To analyse the nature of the fragmentation, a model of a rigid-plastic crystal domain deformed by symmetric double slip in a plane-strain compression is considered. The basic reason for the deformation band existence is that a local decrease in number of active slip systems in the bands is energetically less costly than a homogeneous deformation by multislip. However, such model of the bands predicts their extreme orientation and their width tends to zero. This trend is modified by hardening caused by a build up of the band boundaries and by a dislocation bowing (Orowan) stress. The model provides an explanation of observed orientation of the bands, their width and the significant change in the structural morphology seen as the band reorientation occurs at large strains.The predictio
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BM - Solid-state physics and magnetism
OECD FORD branch
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Project
<a href="/en/project/GAP107%2F12%2F0121" target="_blank" >GAP107/12/0121: A mechanism of ultra-fine substructure formation induced by severe plastic deformation</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2015
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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