Detail publikace

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

ČERNÝ, M. ŠESTÁK, P. POKLUDA, J.

Anglický název

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

Typ

Článek WoS

Jazyk

en

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.

Klíčová slova anglicky

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

Vydáno

2010-02-01

ISSN

0927-0256

Časopis

COMPUTATIONAL MATERIALS SCIENCE

Ročník

47

Číslo

4

Strany od–do

907–910

Počet stran

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"
}