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dc.contributor.authorTemizer, I.en_US
dc.date.accessioned2016-02-08T09:35:37Z
dc.date.available2016-02-08T09:35:37Z
dc.date.issued2013en_US
dc.identifier.issn0301-679X
dc.identifier.urihttp://hdl.handle.net/11693/20808
dc.description.abstractThe influence of particle geometry on the macroscopic frictional response of granular interfaces is investigated via computational contact homogenization. The particle shape is parametrized by convex superellipse geometries that require iterative closest-point projection schemes for modeling the persistent rolling contact of the particle between a rigid smooth surface and a rubber-like material. Normal and tangential forces acting on the particle are computed by the discrete element method. The non-Amontons and non-Coulomb type macroscopic frictional response of the three-body system is linked to microscopic dissipative mechanisms. Numerical investigations demonstrate rolling resistance and additionally suggest that the macroscopic friction from a complex interface particle geometry may be bound by computations that are based on simplified shapes which geometrically bound the original one. © 2013 Elsevier Ltd.en_US
dc.language.isoEnglishen_US
dc.source.titleTribology Internationalen_US
dc.relation.isversionofhttp://dx.doi.org/10.1016/j.triboint.2013.08.005en_US
dc.subjectContact homogenizationen_US
dc.subjectGranular interfaceen_US
dc.subjectMacroscopic frictionen_US
dc.subjectSuperellipseen_US
dc.subjectClosest-point projectionsen_US
dc.subjectDissipative mechanismsen_US
dc.subjectFrictional responseen_US
dc.subjectNumerical investigationsen_US
dc.subjectParticle geometriesen_US
dc.titleGranular contact interfaces with non-circular particlesen_US
dc.typeArticleen_US
dc.departmentDepartment of Mechanical Engineeringen_US
dc.citation.spage229en_US
dc.citation.epage239en_US
dc.citation.volumeNumber67en_US
dc.identifier.doi10.1016/j.triboint.2013.08.005en_US
dc.publisherElsevieren_US


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