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dc.contributor.authorANDRÉ, Damien
dc.contributor.authorCHARLES, Jean-Luc
dc.contributor.author
 hal.structure.identifier
IORDANOFF, Ivan
164351 Institut de Mécanique et d'Ingénierie de Bordeaux [I2M]
dc.contributor.authorDAU, Frédéric
dc.contributor.authorJEBAHI, Mohamed
dc.date.accessioned2013
dc.date.available2013
dc.date.issued2013
dc.date.submitted2013
dc.identifier.issn0022-3093
dc.identifier.urihttp://hdl.handle.net/10985/7539
dc.description.abstractThe indentation response of glasses can be classified under three headings: normal, anomalous and intermediate, depending on the deformation mechanism and the cracking response. Silica glass, as a typical anomalous glass, deforms primarily by densification and has a strong tendency to form cone cracks that can accompany median, radial and lateral cracks when indented with a Vickers tip. This is due to its propensity to deform elastically by resisting plastic flow. Several investigations of this anomalous behavior can be found in the literature. The present paper serves to corroborate these results numerically using the discrete element method. A new pressure-densification model is developed in this work that allows for a quantitative estimate of the densification under very high pressure. This model is applied to simulate the Vickers indentation response of silica glass under various indentation forces using the discrete element method first, and then a discrete–continuum coupling method with large simulation domains to suppress the side effects and reduce the computational time. This coupling involves the discrete element method (DEM) and the constrained natural element method (CNEM). The numerical results obtained in this work compare favorably with past experimental results.
dc.language.isoen
dc.publisherElsevier
dc.rightsPre-print
dc.subjectGlassy silica
dc.subjectDensification
dc.subjectIndentation
dc.subjectDiscrete elements
dc.subjectDiscrete–continuum coupling
dc.titleSimulation of Vickers indentation of silica glass
dc.identifier.doi10.1016/j.jnoncrysol.2013.06.007
dc.typdocArticle dans une revue avec comité de lecture
dc.localisationCentre de Bordeaux-Talence
dc.subject.halPhysique: matière Condensée: Science des matériaux
dc.subject.halInformatique: Modélisation et simulation
dc.subject.halSciences de l'ingénieur: Matériaux
dc.subject.halSciences de l'ingénieur: Mécanique
ensam.audienceInternationale
ensam.page15-24
ensam.journalJournal of Non-Crystalline Solids
ensam.volume378
hal.identifierhal-00909724
hal.version1
hal.statusaccept


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