Publication detail

Influence of normal stress on theoretical shear strength of fcc metals

ČERNÝ, M. POKLUDA, J.

Czech title

Vliv normálového napětí na teoretickou smykovou pevnost fcc kovů

English title

Influence of normal stress on theoretical shear strength of fcc metals

Type

journal article - other

Language

en

Original abstract

The influence of stress applied perpendicularly to a slip plane during the shear deformation of a crystal on the ideal shear strength was studied for <110>{111} and <112>{111} slip systems from first principles. Previous empirical studies for Lennard-Jones crystal suggested nearly linear dependence of the shear strength on the normal tensile and compressive loading. Our ab initio results verified the linear dependence for 6 fcc metals.

Czech abstract

Vliv napětí působícího kolmo ke skluzové rovině v průběhu smykové deformace krystalu na teoretickou smykovou pevnost byl studován pro skluzové systémy <110>{111} a <112>{111} z prvních principů. Předchozí empirické studie pro Lennardův-Jonesův krystal naznačovaly téměř lineární závislost smykové pevnosti na normálovém tahovém a tlakovém zatížení. Naše ab initio výsledky potvrzují tuto lineární závislost pro 6 fcc kovů.

English abstract

The influence of stress applied perpendicularly to a slip plane during the shear deformation of a crystal on the ideal shear strength was studied for <110>{111} and <112>{111} slip systems from first principles. Previous empirical studies for Lennard-Jones crystal suggested nearly linear dependence of the shear strength on the normal tensile and compressive loading. Our ab initio results verified the linear dependence for 6 fcc metals.

Keywords in Czech

idealni smykova pevnost, homogeni deformace, ab initio vypocty

Keywords in English

ideal shear strength, homogeneous deformation, ab initio calculations

RIV year

2007

Released

10.05.2007

ISSN

0921-5093

Journal

Materials Science and Engineering A

Volume

483-484C

Number

1

Pages from–to

692–694

Pages count

3

BIBTEX


@article{BUT43386,
  author="Miroslav {Černý} and Jaroslav {Pokluda},
  title="Influence of normal stress on theoretical shear strength of fcc metals",
  journal="Materials Science and Engineering A",
  year="2007",
  volume="483-484C",
  number="1",
  month="May",
  pages="692--694",
  issn="0921-5093"
}