Publication detail

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

ČERNÝ, M. POKLUDA, J.

English title

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

Type

WoS Article

Language

en

Original abstract

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.

Keywords in English

ideal shear strength, homogeneous deformation, ab initio calculations

Released

2008-01-01

ISSN

0927-0256

Journal

COMPUTATIONAL MATERIALS SCIENCE

Volume

44

Number

10

Pages from–to

127–130

Pages count

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"
}