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Original title:
Influencing of the Pile-Up and the Sink-In by the Coefficient of Friction in the Nanoindentation Test
Authors: Kovář, J. ; Fuis, Vladimír ; Čtvrtlík, Radim
Document type: Papers
Conference/Event: International Conference Engineering Mechanics 2020 /26./, Brno (CZ), 20201124
Year: 2020
Language: eng
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: coefficient of friction; FEM; nanoindentation; pile-up; sink-in
Host item entry: Engineering mechanics 2020. 26th International conference. Book of full texts, ISBN 978-80-214-5896-3, ISSN 1805-8248
Note: Související webová stránka: https://www.engmech.cz/2020/im/im/page/proc
Institution: Institute of Thermomechanics AS ČR (web)
Document availability information: Fulltext is available at the institute of the Academy of Sciences.
Original record: http://hdl.handle.net/11104/0327275
Permalink: http://www.nusl.cz/ntk/nusl-508249
The record appears in these collections:
Research > Institutes ASCR > Institute of Thermomechanics
Conference materials > Papers
Authors: Kovář, J. ; Fuis, Vladimír ; Čtvrtlík, Radim
Document type: Papers
Conference/Event: International Conference Engineering Mechanics 2020 /26./, Brno (CZ), 20201124
Year: 2020
Language: eng
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: coefficient of friction; FEM; nanoindentation; pile-up; sink-in
Host item entry: Engineering mechanics 2020. 26th International conference. Book of full texts, ISBN 978-80-214-5896-3, ISSN 1805-8248
Note: Související webová stránka: https://www.engmech.cz/2020/im/im/page/proc
Institution: Institute of Thermomechanics AS ČR (web)
Document availability information: Fulltext is available at the institute of the Academy of Sciences.
Original record: http://hdl.handle.net/11104/0327275
Permalink: http://www.nusl.cz/ntk/nusl-508249
The record appears in these collections:
Research > Institutes ASCR > Institute of Thermomechanics
Conference materials > Papers
Record created 2022-09-28, last modified 2022-09-28