Detail publikace

A Simple Prediction of the Theoretical Tensile Strength of Cubic Crystals based on the Shear Strength Calculations

ČERNÝ, M. POKLUDA, J.

Originální název

A Simple Prediction of the Theoretical Tensile Strength of Cubic Crystals based on the Shear Strength Calculations

Typ

článek ve sborníku ve WoS nebo Scopus

Jazyk

angličtina

Originální abstrakt

This work presents a simple way how to estimate the uniaxial tensile strength on the basis of the theoretical shear strength calculations taking its dependence on superimposed normal stress into account. The atomistic simulations of the shear and tensile deformations in cubic crystals are performed using first principles computational code based on pseudo-potentials and plane wave basis set. Six fcc crystals are subjected to shear deformations in convenient slip systems and a special relaxation procedure controls the stress tensor. Obtained dependence of the ideal shear strength on normal tensile stress seems to be almost linearly decreasing for all investigated crystals. Taking these results into account, the uniaxial tensile strength values in 110 and 111 directions were evaluated for selected fcc crystals.

Klíčová slova

theoretical shear strength, superimposed normal stress, theoretical tensile strength, ab initio calculations

Autoři

ČERNÝ, M.; POKLUDA, J.

Rok RIV

2008

Vydáno

1. 9. 2008

Nakladatel

VUTIUM

Místo

Brno

ISBN

9781617823190

Kniha

Proceedings of 17th European Conference on Fracture: Multilevel Approach to Fracture of Materials, Components and Structures

Strany od

199

Strany do

204

Strany počet

6

BibTex

@inproceedings{BUT26887,
  author="Miroslav {Černý} and Jaroslav {Pokluda}",
  title="A Simple Prediction of the Theoretical Tensile Strength of Cubic Crystals based on the Shear Strength Calculations",
  booktitle="Proceedings of 17th European Conference on Fracture: Multilevel Approach to Fracture of Materials, Components and Structures",
  year="2008",
  pages="199--204",
  publisher="VUTIUM",
  address="Brno",
  isbn="9781617823190"
}