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"
}