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Article: Three-dimensional noncoaxial plasticity modeling of shear band formation in geomaterials

TitleThree-dimensional noncoaxial plasticity modeling of shear band formation in geomaterials
Authors
KeywordsBifurcations
Constitutive Models
Geomaterials
Plasticity
Three-Dimensional Models
Issue Date2008
PublisherAmerican Society of Civil Engineers. The Journal's web site is located at http://www.pubs.asce.org/journals/em.html
Citation
Journal Of Engineering Mechanics, 2008, v. 134 n. 4, p. 322-329 How to Cite?
AbstractAccurate prediction of shear band formation in geomaterials is crucial in the solution of various stability problems in geotechnical engineering. The initiation of shear band is strongly dependent on the constitutive description of the prelocalization homogeneous deformation. Conventional plasticity models assume that coaxiality exists between the directions of principal stresses and the directions of plastic strain increments. Accumulating evidence has however shown that this assumption is not appropriate. In this paper, a noncoaxial constitutive modeling platform is presented in a general three-dimensional stress space. It is shown that the classical vertex-like structure, which has been widely adopted to describe the noncoaxial constitutive response, only represents the two-dimensional condition. Examples are presented to demonstrate the capability of the modeling platform in capturing the initiation and orientation of shear band in a granular soil. The significance of the noncoaxiality effects is illustrated by comparisons of the predictions produced by coaxial and noncoaxial (both two-dimensional and three-dimensional) plasticity models. © 2008 ASCE.
Persistent Identifierhttp://hdl.handle.net/10722/150443
ISSN
2015 Impact Factor: 1.346
2015 SCImago Journal Rankings: 0.747
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorQian, JGen_US
dc.contributor.authorYang, Jen_US
dc.contributor.authorHuang, MSen_US
dc.date.accessioned2012-06-26T06:04:50Z-
dc.date.available2012-06-26T06:04:50Z-
dc.date.issued2008en_US
dc.identifier.citationJournal Of Engineering Mechanics, 2008, v. 134 n. 4, p. 322-329en_US
dc.identifier.issn0733-9399en_US
dc.identifier.urihttp://hdl.handle.net/10722/150443-
dc.description.abstractAccurate prediction of shear band formation in geomaterials is crucial in the solution of various stability problems in geotechnical engineering. The initiation of shear band is strongly dependent on the constitutive description of the prelocalization homogeneous deformation. Conventional plasticity models assume that coaxiality exists between the directions of principal stresses and the directions of plastic strain increments. Accumulating evidence has however shown that this assumption is not appropriate. In this paper, a noncoaxial constitutive modeling platform is presented in a general three-dimensional stress space. It is shown that the classical vertex-like structure, which has been widely adopted to describe the noncoaxial constitutive response, only represents the two-dimensional condition. Examples are presented to demonstrate the capability of the modeling platform in capturing the initiation and orientation of shear band in a granular soil. The significance of the noncoaxiality effects is illustrated by comparisons of the predictions produced by coaxial and noncoaxial (both two-dimensional and three-dimensional) plasticity models. © 2008 ASCE.en_US
dc.languageengen_US
dc.publisherAmerican Society of Civil Engineers. The Journal's web site is located at http://www.pubs.asce.org/journals/em.htmlen_US
dc.relation.ispartofJournal of Engineering Mechanicsen_US
dc.rightsJournal of Engineering Mechanics. Copyright © American Society of Civil Engineers.-
dc.subjectBifurcationsen_US
dc.subjectConstitutive Modelsen_US
dc.subjectGeomaterialsen_US
dc.subjectPlasticityen_US
dc.subjectThree-Dimensional Modelsen_US
dc.titleThree-dimensional noncoaxial plasticity modeling of shear band formation in geomaterialsen_US
dc.typeArticleen_US
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0733-9399&volume=134&issue=4&spage=322&epage=329&date=2008&atitle=Three-dimensional+non-coaxial+plasticity+modelling+of+shear+band+formation+in+geomaterials-
dc.identifier.emailYang, J: junyang@hkucc.hku.hken_US
dc.identifier.authorityYang, J=rp00201en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1061/(ASCE)0733-9399(2008)134:4(322)en_US
dc.identifier.scopuseid_2-s2.0-41049090429en_US
dc.identifier.hkuros147803-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-41049090429&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume134en_US
dc.identifier.issue4en_US
dc.identifier.spage322en_US
dc.identifier.epage329en_US
dc.identifier.isiWOS:000254551800005-
dc.publisher.placeUnited Statesen_US
dc.identifier.scopusauthoridQian, JG=8340661000en_US
dc.identifier.scopusauthoridYang, J=35605258800en_US
dc.identifier.scopusauthoridHuang, MS=8293766600en_US

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