Publication detail

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

KOVÁŘ, J. FUIS, V.

Original Title

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

Type

conference paper

Language

English

Original Abstract

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.

Keywords

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

Authors

KOVÁŘ, J.; FUIS, V.

Released

9. 5. 2022

Location

Milovy

ISBN

978-80-86246-48-2

Book

Engineering Mechanics 2022

ISBN

1805-8248

Periodical

Engineering Mechanics ....

State

Czech Republic

Pages from

217

Pages to

220

Pages count

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"
}