Detail publikačního výsledku

Influence of superimposed normal stress on the <112>{111} shear strength in perfect fcc metals

ČERNÝ, M.; POKLUDA, J.

Originální název

Influence of superimposed normal stress on the <112>{111} shear strength in perfect fcc metals

Anglický název

Influence of superimposed normal stress on the <112>{111} shear strength in perfect fcc metals

Druh

Článek WoS

Originální abstrakt

The influence of a stress applied perpendicularly to slip planes during the shear deformation of fcc crystals on the theoretical shear strength was studied for <112>{111} slip system using first principles methods. A special relaxation procedure guarantees that all stresses acting on the system are zero with the exception of the normal stress and the resolved shear stress. The theoretical shear strength was found to be a decreasing function of the applied tensile normal stress. The results were compared with similar calculations for rigid atomic planes and the role of relaxation of atomic positions within the planes was found to be important for correct description of the studied deformation process.

Anglický abstrakt

The influence of a stress applied perpendicularly to slip planes during the shear deformation of fcc crystals on the theoretical shear strength was studied for <112>{111} slip system using first principles methods. A special relaxation procedure guarantees that all stresses acting on the system are zero with the exception of the normal stress and the resolved shear stress. The theoretical shear strength was found to be a decreasing function of the applied tensile normal stress. The results were compared with similar calculations for rigid atomic planes and the role of relaxation of atomic positions within the planes was found to be important for correct description of the studied deformation process.

Klíčová slova

ideal shear strength, homogeneous deformation, ab initio calculations

Klíčová slova v angličtině

ideal shear strength, homogeneous deformation, ab initio calculations

Autoři

ČERNÝ, M.; POKLUDA, J.

Rok RIV

2010

Vydáno

01.01.2008

ISSN

0927-0256

Periodikum

COMPUTATIONAL MATERIALS SCIENCE

Svazek

44

Číslo

10

Stát

Nizozemsko

Strany od

127

Strany do

130

Strany počet

4

BibTex

@article{BUT44480,
  author="Miroslav {Černý} and Jaroslav {Pokluda}",
  title="Influence of superimposed normal stress on the <112>{111} shear strength in perfect fcc metals",
  journal="COMPUTATIONAL MATERIALS SCIENCE",
  year="2008",
  volume="44",
  number="10",
  pages="127--130",
  issn="0927-0256"
}