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Nonlocal Frictional Effects at Indentation of Elastic Materials
KTH, Skolan för arkitektur och samhällsbyggnad (ABE), Transportvetenskap, Väg- och banteknik.ORCID-id: 0000-0002-0596-228X
KTH, Skolan för teknikvetenskap (SCI), Hållfasthetslära (Inst.).ORCID-id: 0000-0001-6232-8819
2013 (engelsk)Inngår i: Tribology letters, ISSN 1023-8883, E-ISSN 1573-2711, Vol. 51, nr 3, s. 397-407Artikkel i tidsskrift (Fagfellevurdert) 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.

sted, utgiver, år, opplag, sider
2013. Vol. 51, nr 3, s. 397-407
Emneord [en]
Indentation, Elastic materials, FEM, Nonlocal friction
HSV kategori
Identifikatorer
URN: urn:nbn:se:kth:diva-129451DOI: 10.1007/s11249-013-0172-4ISI: 000323332800010Scopus ID: 2-s2.0-84882258696OAI: oai:DiVA.org:kth-129451DiVA, id: diva2:652972
Merknad

QC 20131002

Tilgjengelig fra: 2013-10-02 Laget: 2013-09-30 Sist oppdatert: 2018-01-11bibliografisk kontrollert

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