Crystal Plasticity Treated as a Quasi-Static Material Flow through Adjustable Crystal Lattice

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F12%3A00203038" target="_blank" >RIV/68407700:21110/12:00203038 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Crystal Plasticity Treated as a Quasi-Static Material Flow through Adjustable Crystal Lattice

Original language description

Considering high pressure torsion experiments as a motivation, plastic behavior of crystalline solids is treated as a highly viscous material flow through an adjustable crystal lattice. Instead of the traditional decomposition rule considering the deformation gradient as a product of the elastic and plastic parts, the proposed model is based on its rate form: 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 slip strains themselves are not defined in the model. The geometrical changes caused by material flow and the slip strains can be specified a posteriori. Crystal lattice distortions are measured with respect to a lattice reference configuration. In a adopted rigid plastic approximation the lattice distortions are reduced to rotations. Constitutive equations incorporate non-local hardening caused by close range interactions among dislocations.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

JG - Metallurgy, metal materials

OECD FORD branch

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Project

<a href="/en/project/GAP108%2F12%2F1463" target="_blank" >GAP108/12/1463: Two scales discrete-continuum approach to dislocation dynamics</a><br>

Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2012

Confidentiality

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

Name of the periodical

Acta Physica Polonica A

ISSN

0587-4246

e-ISSN

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Volume of the periodical

122

Issue of the periodical within the volume

3

Country of publishing house

PL - POLAND

Number of pages

3

Pages from-to

482-484

UT code for WoS article

000309019200015

EID of the result in the Scopus database

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