An investigation of diffuse failure modes in undrained triaxial tests on loose sand

Desrues, J; Georgopoulos, I-O

dc.contributor.author	Desrues, J	en
dc.contributor.author	Georgopoulos, I-O	en
dc.date.accessioned	2014-03-01T01:23:34Z
dc.date.available	2014-03-01T01:23:34Z
dc.date.issued	2006	en
dc.identifier.issn	0038-0806	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/17030
dc.relation.uri	http://www.scopus.com/inward/record.url?eid=2-s2.0-72449205515&partnerID=40&md5=489360092f27e385ff8a67239951b1b9	en
dc.subject	Diffuse failure	en
dc.subject	Dynamic instability	en
dc.subject	Localization	en
dc.subject	Shear band	en
dc.subject	Stress-strain controlled triaxial compression tests (IGC: D6/F6)	en
dc.subject.classification	Engineering, Geological	en
dc.subject.classification	Geosciences, Multidisciplinary	en
dc.subject.other	Deformation modes	en
dc.subject.other	Diffuse failure	en
dc.subject.other	Diffuse mode	en
dc.subject.other	Experimental studies	en
dc.subject.other	Failure dynamics	en
dc.subject.other	Loose sands	en
dc.subject.other	Non-localized	en
dc.subject.other	Post-peak	en
dc.subject.other	Stress-strain	en
dc.subject.other	Test condition	en
dc.subject.other	Test control	en
dc.subject.other	Triaxial compression tests	en
dc.subject.other	Undrained	en
dc.subject.other	Undrained triaxial test	en
dc.subject.other	Compression testing	en
dc.subject.other	Sand	en
dc.subject.other	Shear bands	en
dc.subject.other	Stress-strain curves	en
dc.subject.other	Testing	en
dc.subject.other	Failure analysis	en
dc.title	An investigation of diffuse failure modes in undrained triaxial tests on loose sand	en
heal.type	journalArticle	en
heal.language	English	en
heal.publicationDate	2006	en
heal.abstract	In this paper we present an experimental study performed as an attempt to exhibit non-localized, diffuse failure deformation modes in sand specimens submitted to test conditions leading to unstable failure. In particular, we are interested in diffuse modes which may appear in common triaxial compression tests on undrained loose sand specimens. A special series of triaxial compression tests are reported. These tests resemble the common triaxial compression tests but are modified in such a way that after the peak in the stress-strain curve, test control is changed from strain-control to stress-control. More precisely, a special kind of load-control is used, based on an original device which allows to recover displacement-control after a dynamic step in the post-peak regime. It is shown that the control used allows for the observation of the failure modes occurring in the unstable branch of the test.	en
heal.publisher	JAPANESE GEOTECHNICAL SOC	en
heal.journalName	Soils and Foundations	en
dc.identifier.isi	ISI:000242887100004	en
dc.identifier.volume	46	en
dc.identifier.issue	5	en
dc.identifier.spage	585	en
dc.identifier.epage	594	en