Detail publikačního výsledku

Influencing of the Pile-Up and the Sink-In by the Coefficient of Friction in the Nanoindentation Test

KOVÁŘ, J.; FUIS, V.; ČTVRTLÍK, R.

Originální název

Influencing of the Pile-Up and the Sink-In by the Coefficient of Friction in the Nanoindentation Test

Anglický název

Influencing of the Pile-Up and the Sink-In by the Coefficient of Friction in the Nanoindentation Test

Druh

Stať ve sborníku v databázi WoS či Scopus

Originální abstrakt

The influence of the coefficient of friction between an indenter and a specimen on the height of the pile-up or depth of the sink-in during the nanoindentation test is discussed in this paper. When the indenter is pressed into the hard material, the sink-in behavior causes the bending of the specimen's surface under the indenter. When the indenter is pressed into the soft material, the deformed material accumulates under the sides of the indenter and makes a pile-up region. The pile-up or sink-in behavior influences the contact area. In this paper, the finite element method was used for calculation of the dependency between the depth of the sink-in or height of the pile-up and the coefficient of friction. The results showed that while there is not any dependency between the friction and the depth of the sink-in, there is a strong dependency between the friction and the height of the pile-up until a specific value of the coefficient of friction. When the pile-up behavior occurs, the friction influences the contact area and should be included into the calculation of the contact area.

Anglický abstrakt

The influence of the coefficient of friction between an indenter and a specimen on the height of the pile-up or depth of the sink-in during the nanoindentation test is discussed in this paper. When the indenter is pressed into the hard material, the sink-in behavior causes the bending of the specimen's surface under the indenter. When the indenter is pressed into the soft material, the deformed material accumulates under the sides of the indenter and makes a pile-up region. The pile-up or sink-in behavior influences the contact area. In this paper, the finite element method was used for calculation of the dependency between the depth of the sink-in or height of the pile-up and the coefficient of friction. The results showed that while there is not any dependency between the friction and the depth of the sink-in, there is a strong dependency between the friction and the height of the pile-up until a specific value of the coefficient of friction. When the pile-up behavior occurs, the friction influences the contact area and should be included into the calculation of the contact area.

Klíčová slova

Nanoindentation, Pile-up, Sink-in, Coefficient of friction, FEM

Klíčová slova v angličtině

Nanoindentation, Pile-up, Sink-in, Coefficient of friction, FEM

Autoři

KOVÁŘ, J.; FUIS, V.; ČTVRTLÍK, R.

Rok RIV

2021

Vydáno

24.11.2020

Místo

Brno

Kniha

ENGINEERING MECHANICS 2020

ISSN

1805-8248

Periodikum

Engineering Mechanics

Svazek

1

Číslo

1

Stát

Česká republika

Strany od

298

Strany do

301

Strany počet

4

BibTex

@inproceedings{BUT172115,
  author="Jaroslav {Kovář} and Vladimír {Fuis} and Radim {Čtvrtlík}",
  title="Influencing of the Pile-Up and the Sink-In by the Coefficient of Friction in the Nanoindentation Test",
  booktitle="ENGINEERING MECHANICS 2020",
  year="2020",
  journal="Engineering Mechanics",
  volume="1",
  number="1",
  pages="298--301",
  address="Brno",
  doi="10.21495/5896-3-298",
  issn="1805-8248"
}