Publication detail

The [100] Compressive Strength of Perfect Cubic Crystals under Superimposed Biaxial Stresses

ŘEHÁK, P. ČERNÝ, M. POKLUDA, J.

Czech title

Tlaková pevnost [100] dokonalých kubických krystalů za superponovaných biaxiálních napětí

English title

The [100] Compressive Strength of Perfect Cubic Crystals under Superimposed Biaxial Stresses

Type

journal article in Web of Science

Language

en

Original abstract

Stress-strain responses of five fcc crystals subjected to triaxial loading are investigated by means of pseudopotential density functional method. Particularly, the influence of superimposed transverse biaxial stresses on the maximum uniaxial stresses is evaluated for both tensile and compressive regions. The obtained results revealed that the compressive strengths (maximum compressive stresses) of all studied metals are more sensitive to the superimposed stresses than their tensile strengths. The compressive strengths were found to be increasing linear functions of the compressive transverse stresses.

Czech abstract

Odezvy napětí-deformace FCC krystalů podrobených trojosému zatížení jsou zjišťovány prostřednictvím pseudopotenciálové metody funkcionálu hustoty. Zejména vliv superponovaných příčných dvouosých namáhání na maximum jednoosé zdůrazňuje, že je hodnocena jak pro tahu a tlaku regionů. Získané výsledky ukázaly, že tlakové pevnosti všech sledovaných kovů jsou citlivější na příčná napětí, než jejich pevnosti v tahu. Tlakové pevnosti byly rostoucí lineární funkce kompresivních příčných napětí.

English abstract

Stress-strain responses of five fcc crystals subjected to triaxial loading are investigated by means of pseudopotential density functional method. Particularly, the influence of superimposed transverse biaxial stresses on the maximum uniaxial stresses is evaluated for both tensile and compressive regions. The obtained results revealed that the compressive strengths (maximum compressive stresses) of all studied metals are more sensitive to the superimposed stresses than their tensile strengths. The compressive strengths were found to be increasing linear functions of the compressive transverse stresses.

Keywords in Czech

superponovaná napětí, teoretická pevnost, trojosé zatížení, ab initio výpočty

Keywords in English

superimposed biaxial stress, tensile and compressive strength, triaxial loading, first principles calculations

RIV year

2011

Released

01.01.2011

Publisher

TRANS TECH PUBLICATIONS LTD

ISSN

1013-9826

Journal

Key Engineering Materials

Volume

465

Number

1

Pages from–to

183–186

Pages count

4

BIBTEX


@article{BUT49462,
  author="Petr {Řehák} and Miroslav {Černý} and Jaroslav {Pokluda},
  title="The [100] Compressive Strength of Perfect Cubic Crystals under Superimposed Biaxial Stresses",
  journal="Key Engineering Materials",
  year="2011",
  volume="465",
  number="1",
  month="January",
  pages="183--186",
  publisher="TRANS TECH PUBLICATIONS LTD",
  issn="1013-9826"
}