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dc.contributor.authorButlanska, Joana
dc.contributor.authorArroyo Alvarez de Toledo, Marcos
dc.contributor.authorGens Solé, Antonio
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament d'Enginyeria del Terreny, Cartogràfica i Geofísica
dc.date.accessioned2015-03-19T13:01:21Z
dc.date.created2014
dc.date.issued2014
dc.identifier.citationButlanska, J.; Arroyo, M.; Gens, A. Probing DEM specimen heterogeneity by simulated CPT. A: International Symposium on Geomechanics from Micro to Macro. "Geomechanics from micro to macro: proceedings of the TC105 ISSMGE international symposium on geomechanics from micro to macro: Cambridge, UK, 1-3 September 2014". Cambridge: CRC Press, 2014, p. 547-552.
dc.identifier.isbn978-1-138-02707-7
dc.identifier.urihttp://hdl.handle.net/2117/26845
dc.description.abstractA standard procedure for specimen formation in DEM simulations is the radius expansion method. Initialization of stress and density is performed by means of a servo-controlled procedure in which the wall boundaries of the specimen are actuated to attain the specified target values. The limitations of this procedure for creating large specimens are here explored using simulated CPT tests. Penetration resistance at the chamber axis fails as the chamber size increases above a certain limit and the actuated radial boundary increases its distance from the axis. Detailed examination of the microscopic characteristics of the specimen shows a large localized fall on coordination number and local stress at the chamber axis that is not sensed at the external walls. Alternatives to remediate this problem are discussed.
dc.format.extent6 p.
dc.language.isoeng
dc.publisherCRC Press
dc.subjectÀrees temàtiques de la UPC::Enginyeria civil::Geotècnia
dc.subjectÀrees temàtiques de la UPC::Matemàtiques i estadística::Anàlisi numèrica::Mètodes numèrics
dc.subject.lcshSoil penetration test
dc.subject.lcshDiscrete element method
dc.titleProbing DEM specimen heterogeneity by simulated CPT
dc.typeConference report
dc.subject.lemacMecànica dels sòls -- Mètodes numèrics
dc.contributor.groupUniversitat Politècnica de Catalunya. MSR - Mecànica del Sòls i de les Roques
dc.relation.publisherversionhttp://www.crcnetbase.com/doi/abs/10.1201/b17395-98
dc.rights.accessRestricted access - publisher's policy
local.identifier.drac15522940
dc.description.versionPostprint (published version)
dc.date.lift10000-01-01
local.citation.authorButlanska, J.; Arroyo, M.; Gens, A.
local.citation.contributorInternational Symposium on Geomechanics from Micro to Macro
local.citation.pubplaceCambridge
local.citation.publicationNameGeomechanics from micro to macro: proceedings of the TC105 ISSMGE international symposium on geomechanics from micro to macro: Cambridge, UK, 1-3 September 2014
local.citation.startingPage547
local.citation.endingPage552


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