Publication detail

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

KOVÁŘ, J. FUIS, V. ČTVRTLÍK, R.

Original Title

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

English Title

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

Type

conference paper

Language

en

Original Abstract

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.

English abstract

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.

Keywords

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

Released

24.11.2020

Location

Brno

ISBN

1805-8248

Periodical

Engineering Mechanics ....

Year of study

1

Number

1

State

CZ

Pages from

298

Pages to

301

Pages count

4

Documents

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",
  annote="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.",
  booktitle="ENGINEERING MECHANICS 2020",
  chapter="172115",
  doi="10.21495/5896-3-298",
  howpublished="print",
  number="1",
  year="2020",
  month="november",
  pages="298--301",
  type="conference paper"
}