Plasticity modeling of the effect of sample preparation method on sand response

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dc.contributor.author Papadimitriou, AG en
dc.contributor.author Dafalias, YF en
dc.contributor.author Yoshimine, M en
dc.date.accessioned 2014-03-01T02:43:28Z
dc.date.available 2014-03-01T02:43:28Z
dc.date.issued 2005 en
dc.identifier.issn 0038-0806 en
dc.identifier.uri http://hdl.handle.net/123456789/31427
dc.relation.uri http://www.scopus.com/inward/record.url?eid=2-s2.0-33751081130&partnerID=40&md5=0dd0d310c285d09f153646e2fdc0b37f en
dc.subject Anisotropy en
dc.subject Constitutive equation of soil en
dc.subject Dilatancy plasticity en
dc.subject Sand en
dc.subject Soil structure en
dc.subject Test procedure (IGC: D3/D6/E13) en
dc.subject.classification Engineering, Geological en
dc.subject.classification Geosciences, Multidisciplinary en
dc.subject.other ABS resins en
dc.subject.other Anisotropy en
dc.subject.other Elasticity en
dc.subject.other Fabrics en
dc.subject.other Plasticity en
dc.subject.other Plastics en
dc.subject.other Polypropylenes en
dc.subject.other Sand en
dc.subject.other Shear deformation en
dc.subject.other Soils en
dc.subject.other Stresses en
dc.subject.other Tensors en
dc.subject.other Constitutive equation of soil en
dc.subject.other Dilatancy plasticity en
dc.subject.other Effective stresses en
dc.subject.other Experimental evidences en
dc.subject.other Fabric anisotropies en
dc.subject.other Fabric tensors en
dc.subject.other Hardening responses en
dc.subject.other Loading directions en
dc.subject.other Mechanical responses en
dc.subject.other Model constants en
dc.subject.other Modeling en
dc.subject.other Preparation methods en
dc.subject.other Sample preparation methods en
dc.subject.other Second orders en
dc.subject.other Soil structure en
dc.subject.other Stress-strain en
dc.subject.other Test procedure (IGC: D3/D6/E13) en
dc.subject.other Toyoura sands en
dc.subject.other Undrained en
dc.subject.other Void ratios en
dc.subject.other Constitutive equations en
dc.title Plasticity modeling of the effect of sample preparation method on sand response en
heal.type conferenceItem en
heal.language English en
heal.publicationDate 2005 en
heal.abstract Experimental evidence shows that different preparation methods produce sand samples with distinctly different stress-strain response. This paper explores and draws conclusions from the measured differences on the monotonic undrained triaxial response of Toyoura sand, prepared by different methods at the same values of void ratio and initial effective stresses. This is achieved by comparing data and simulations performed with a recently developed plasticity constitutive model, which accounts for the effect of inherent fabric anisotropy on the mechanical response. The inherent fabric anisotropy is represented by a second order symmetric fabric tensor, and its effect on the response at different loading directions is expressed by an appropriate dependence of certain constitutive ingredients on a joint isotropic invariant of the loading direction and the fabric tensor. Use of this constitutive scheme to simulate the aforementioned data on Toyoura sand exploits the fact that the preparation method affects both the dilatancy and the hardening response in a systematic manner. Under the premise that these effects are due to the different inherent fabric created by the preparation method, it follows that the foregoing simulations do not require changes in constitutive equations or entirely different sets of model constants. On the contrary, only model constants related to this inherent fabric anisotropy scheme need readjustment, providing insight to how the sample preparation method affects the response and what can be done to model it. en
heal.journalName Soils and Foundations en
dc.identifier.isi ISI:000229796000010 en
dc.identifier.volume 45 en
dc.identifier.issue 2 en
dc.identifier.spage 109 en
dc.identifier.epage 123 en

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