Shear instabilities in perfect bcc crystals during simulated tensile tests

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F13%3APU101939" target="_blank" >RIV/00216305:26210/13:PU101939 - isvavai.cz</a>

Alternative codes found

RIV/68081723:_____/13:00421359 RIV/00216224:14740/13:00070181

Result on the web

<a href="http://dx.doi.org/10.1103/PhysRevB.87.014117" target="_blank" >http://dx.doi.org/10.1103/PhysRevB.87.014117</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1103/PhysRevB.87.014117" target="_blank" >10.1103/PhysRevB.87.014117</a>

Result language

angličtina

Original language name

Shear instabilities in perfect bcc crystals during simulated tensile tests

Original language description

This work demonstrates a simple but efficient way how to determine the existence of shear instabilities in ideal bcc crystals under uniaxial loading. The theoretical tensile strengths are derived from calculated values of the theoretical shear strength and their dependence on the superimposed normal stress. The presented procedure enables us to avoid complicated and time-consuming analyses of elastic stability of crystals. Results of first-principles simulations of coupled shear and tensile deformationsfor two most frequent slip systems ({110}<111> and {112}<111>) in six ideal cubic crystals are used to evaluate the uniaxial tensile strengths in three low-index crystallographic directions (<100>, <110>, and <111>) by assuming a shear instability in the weakest shear system. While instabilities occurring under <100> tension are mostly related to the shear in {112} plane, those occurring during loading in the other two directions are associated with {110} planes. The results are consist

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

BM - Solid-state physics and magnetism

OECD FORD branch

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Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2013

Confidentiality

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

Name of the periodical

PHYSICAL REVIEW B

ISSN

1098-0121

e-ISSN

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Volume of the periodical

87

Issue of the periodical within the volume

1

Country of publishing house

US - UNITED STATES

Number of pages

4

Pages from-to

014117-014117

UT code for WoS article

000314223600001

EID of the result in the Scopus database

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