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dc.contributor.authorBastos de Souza, FLAVIA
dc.contributor.authorCasas, Estevam
dc.contributor.authorOller Martínez, Sergio Horacio
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament de Resistència de Materials i Estructures a l'Enginyeria
dc.identifier.citationBastos de Souza, F.; Casas, E.; Oller, S. Analytical and numerical analysis of human dental occlusal contact. "Computer methods in biomechanics and biomedical engineering", 2013, vol. 16, núm. 5, p. 495-503.
dc.description.abstractThe knowledge of contact forces in teeth surfaces during mastication or para-functional movements can help to understand processes related to friction and wear of human dental enamel. The development of a numerical model for analysis of the occlusal contact between two antagonistic teeth is proposed, which includes three basic steps: the characterisation of the surface roughness, its homogenisation using an assumed distribution function and the numerical determination of the resulting forces. Finite element strain results for the main different asperities are statistically combined, deriving the predicted macroscopic behaviour of the interface. Axisymmetric and 3D numerical models with an elasto-plastic constitutive law are used to simulate micro-indentations and micro-contacts, respectively. The contact is allowed to occur locally in planes not necessarily parallel to the surface's mean plane, a problem for which there is no analytical solution. The three identified parameters, homogenised surface hardness (3.68 GPa), surface yield stress (3.08 GPa) and static friction coefficient (0.23), agree with the experimental values reported in the literature.
dc.format.extent9 p.
dc.publisherGordon and Breach Science Publishers
dc.subjectÀrees temàtiques de la UPC::Enginyeria biomèdica::Biomecànica
dc.subjectÀrees temàtiques de la UPC::Matemàtiques i estadística::Anàlisi numèrica
dc.subject.lcshContact mechanics--Mathematical models
dc.subject.othercontact mechanics
dc.subject.othersurface topography
dc.subject.otherfinite element modelling
dc.titleAnalytical and numerical analysis of human dental occlusal contact
dc.subject.lemacBiomecànica -- Models matemàtics
dc.subject.lemacMecànica de contacte -- Models matemàtics
dc.contributor.groupUniversitat Politècnica de Catalunya. (MC)2 - Grup de Mecànica Computacional en Medis Continus
dc.rights.accessRestricted access - publisher's policy
dc.description.versionPostprint (published version)
upcommons.citation.authorBastos de Souza, F.; Casas, E.; Oller, S.
upcommons.citation.publicationNameComputer methods in biomechanics and biomedical engineering

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