Detail publikačního výsledku

Influence of superimposed normal stress on shear strength of perfect bcc crystals

ČERNÝ, M.; ŠESTÁK, P.; POKLUDA, J.

Originální název

Influence of superimposed normal stress on shear strength of perfect bcc crystals

Anglický název

Influence of superimposed normal stress on shear strength of perfect bcc crystals

Druh

Článek WoS

Originální abstrakt

The influence of a stress applied normally to shear planes on the theoretical shear strength of bcc crystals was studied for the <111>{112} shear system in both the twinning and the anti-twinning shear mode. The applied computational procedure employed first principles code working in the framework of density functional theory. The modeled deformation of crystal lattice is represented by a uniform distortion of the primitive cell which is subjected to a superposition of shear and normal stresses. The theoretical shear strength was found to be a decreasing (increasing) function of the applied tensile (compressive) normal stress in most studied cases.

Anglický abstrakt

The influence of a stress applied normally to shear planes on the theoretical shear strength of bcc crystals was studied for the <111>{112} shear system in both the twinning and the anti-twinning shear mode. The applied computational procedure employed first principles code working in the framework of density functional theory. The modeled deformation of crystal lattice is represented by a uniform distortion of the primitive cell which is subjected to a superposition of shear and normal stresses. The theoretical shear strength was found to be a decreasing (increasing) function of the applied tensile (compressive) normal stress in most studied cases.

Klíčová slova

ideal shear strength, homogeneous deformation, stress superposition, bcc metals, ab initio calculations

Klíčová slova v angličtině

ideal shear strength, homogeneous deformation, stress superposition, bcc metals, ab initio calculations

Autoři

ČERNÝ, M.; ŠESTÁK, P.; POKLUDA, J.

Rok RIV

2010

Vydáno

01.02.2010

ISSN

0927-0256

Periodikum

COMPUTATIONAL MATERIALS SCIENCE

Svazek

47

Číslo

4

Stát

Nizozemsko

Strany od

907

Strany do

910

Strany počet

4

BibTex

@article{BUT47809,
  author="Miroslav {Černý} and Petr {Šesták} and Jaroslav {Pokluda}",
  title="Influence of superimposed normal stress on shear strength of perfect bcc crystals",
  journal="COMPUTATIONAL MATERIALS SCIENCE",
  year="2010",
  volume="47",
  number="4",
  pages="907--910",
  issn="0927-0256"
}