Detail publikace

Comparison of the results of analytical and FEM stress calculations of the spherical nanoindentation

KOVÁŘ, J. FUIS, V.

Anglický název

Comparison of the results of analytical and FEM stress calculations of the spherical nanoindentation

Typ

článek ve sborníku ve WoS nebo Scopus

Jazyk

en

Originální abstrakt

This paper focuses on the comparison of the calculation of stress fields under the spherical indenter determined with analytical and FEM calculations and the identification of the most common cracks initiation reasons. The most used theory for the description of the contact of sphere and half-space was derived by Hertz. Huber extended this theory to calculate the stress field under the indenter. If every component of stress tensor is known, the principal stresses can be derived. The analytically calculated stresses were verified with the FEM and the initiation and growth of the most common cracks (ring, conical) at spherical indentation was explained.

Anglický abstrakt

This paper focuses on the comparison of the calculation of stress fields under the spherical indenter determined with analytical and FEM calculations and the identification of the most common cracks initiation reasons. The most used theory for the description of the contact of sphere and half-space was derived by Hertz. Huber extended this theory to calculate the stress field under the indenter. If every component of stress tensor is known, the principal stresses can be derived. The analytically calculated stresses were verified with the FEM and the initiation and growth of the most common cracks (ring, conical) at spherical indentation was explained.

Klíčová slova anglicky

Hertz theory, Spherical indentation, Fused silica, Nanoindentation, Conical crack

Vydáno

09.05.2022

Místo

Milovy

ISBN

978-80-86246-48-2

ISSN

1805-8248

Kniha

Engineering Mechanics 2022

Strany od–do

217–220

Počet stran

4

BIBTEX


@inproceedings{BUT180345,
  author="Jaroslav {Kovář} and Vladimír {Fuis},
  title="Comparison of the results of analytical and FEM stress calculations of the spherical nanoindentation",
  booktitle="Engineering Mechanics 2022",
  year="2022",
  month="May",
  pages="217--220",
  address="Milovy",
  isbn="978-80-86246-48-2",
  issn="1805-8248"
}