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dc.contributor.authorMonteiro Azevedo, N.
dc.contributor.authorLemos, J.
dc.date.accessioned2020-05-28T16:00:21Z
dc.date.available2020-05-28T16:00:21Z
dc.date.issued2011
dc.identifier.isbn978-84-89925-67-0
dc.identifier.urihttp://hdl.handle.net/2117/189380
dc.description.abstractDetailed rigid particle models have been proposed for modeling fracture in quasibrittle materials. The rigid particle circular models proposed in the literature do not properly reproduce the known rock friction angle and the observed rock tensile strength to compression strength ratio. In this article, a 3D rigid particle contact model, 3D-GCM, is presented which has been developed to study fracture phenomena in rock. The 3D-GCM contact model incorporates in a straightforward manner the force versus displacement relationships of the traditional contact point contact model model, PCM. Furthermore it provides both moment transmission and simple physical constitutive models based on standard force displacement relationships. The 3D-GCM model is validated against known triaxial and Brazilian tests of a granite rock. It is shown that the enhanced rigid particle model leads to a better agreement with the experimental results.
dc.format.extent12 p.
dc.language.isoeng
dc.publisherCIMNE
dc.subjectÀrees temàtiques de la UPC::Matemàtiques i estadística::Anàlisi numèrica::Mètodes en elements finits
dc.subject.lcshFinite element method
dc.subject.lcshComputational methods in mechanics
dc.subject.lcshParticle methods (Numerical analysis)
dc.subject.otherDEM, Contact model, Fracture, Rock
dc.titleA 3D generalized rigid particle contact model for rock fracture
dc.typeConference report
dc.subject.lemacElements finits, Mètode dels
dc.rights.accessOpen Access
local.citation.contributorPARTICLES II
local.citation.publicationNamePARTICLES II : proceedings of the II International Conference on Particle-Based Methods : fundamentals and applications
local.citation.startingPage514
local.citation.endingPage525


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