Plastic deformation treated as material flow through adjustable crystal lattice

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F14%3A10284306" target="_blank" >RIV/00216208:11320/14:10284306 - isvavai.cz</a>

Výsledek na webu

<a href="http://iopscience.iop.org/1757-899X/63/1/012130" target="_blank" >http://iopscience.iop.org/1757-899X/63/1/012130</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1088/1757-899X/63/1/012130" target="_blank" >10.1088/1757-899X/63/1/012130</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Plastic deformation treated as material flow through adjustable crystal lattice

Popis výsledku v původním jazyce

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 slipsystems. 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 propo

Název v anglickém jazyce

Plastic deformation treated as material flow through adjustable crystal lattice

Popis výsledku anglicky

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 slipsystems. 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 propo

Druh

D - Stať ve sborníku

CEP obor

BM - Fyzika pevných látek a magnetismus

OECD FORD obor

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Projekt

<a href="/cs/project/GAP107%2F12%2F0121" target="_blank" >GAP107/12/0121: Mechanismus tvorby ultra jemné substruktury silnou plastickou deformací</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2014

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

IOP Conference Series: Materials Science and Engineering [online]

ISBN

—

ISSN

1757-899X

e-ISSN

—

Počet stran výsledku

11

Strana od-do

1-11

Název nakladatele

IOP PUBLISHING LTD

Místo vydání

neuveden

Místo konání akce

Metz, Francie

Datum konání akce

30. 6. 2014

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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