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Nonlocal Frictional Effects at Indentation of Elastic Materials
KTH, School of Architecture and the Built Environment (ABE), Transport Science, Highway and Railway Engineering.ORCID iD: 0000-0002-0596-228X
KTH, School of Engineering Sciences (SCI), Solid Mechanics (Dept.).ORCID iD: 0000-0001-6232-8819
2013 (English)In: Tribology letters, ISSN 1023-8883, E-ISSN 1573-2711, Vol. 51, no 3, 397-407 p.Article in journal (Refereed) Published
Abstract [en]

Indentation of elastic materials is investigated numerically using the finite element method. Large deformation theory is relied upon for accuracy. The study focuses on nonlocal frictional effects on relevant indentation quantities in the microindentation regime. The indentation quantities investigated include both local and global ones. It is shown that nonlocal frictional effects are small when global quantities are at issue, as is the case when conventional (Coulomb) theory of friction is used, also when these features are introduced at the ridges of a Vickers indenter where stress gradients are substantial. These effects are, however, shown to be of importance for particular indenter geometries as far as local field variables are concerned.

Place, publisher, year, edition, pages
2013. Vol. 51, no 3, 397-407 p.
Keyword [en]
Indentation, Elastic materials, FEM, Nonlocal friction
National Category
Tribology
Identifiers
URN: urn:nbn:se:kth:diva-129451DOI: 10.1007/s11249-013-0172-4ISI: 000323332800010Scopus ID: 2-s2.0-84882258696OAI: oai:DiVA.org:kth-129451DiVA: diva2:652972
Note

QC 20131002

Available from: 2013-10-02 Created: 2013-09-30 Last updated: 2017-12-06Bibliographically approved

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Jelagin, DenisLarsson, Per-Lennart

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