Detail publikačního výsledku

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

KOVÁŘ, J.; FUIS, V.

Originální název

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

Anglický název

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

Druh

Stať ve sborníku v databázi WoS či Scopus

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

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

Klíčová slova v angličtině

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

Autoři

KOVÁŘ, J.; FUIS, V.

Rok RIV

2024

Vydáno

09.05.2022

Místo

Milovy

ISBN

978-80-86246-48-2

Kniha

Engineering Mechanics 2022

ISSN

1805-8248

Periodikum

Engineering Mechanics

Stát

Česká republika

Strany od

217

Strany do

220

Strany počet

4

URL

https://www.engmech.cz/im/proceedings/show/2022

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",
  journal="Engineering Mechanics",
  pages="217--220",
  address="Milovy",
  doi="10.21495/51-2-217",
  isbn="978-80-86246-48-2",
  issn="1805-8248",
  url="https://www.engmech.cz/im/proceedings/show/2022"
}