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An Anisotropic Hardening Constitutive Model for Dilatancy of Cohesionless Soils : I. Formulation  

오세붕 (영남대학교 토목공학과)
박현일 (한국과학기술원 건설 및 환경공학과)
권오균 (계명대학교 토목공학과)
Publication Information
Journal of the Korean Geotechnical Society / v.20, no.6, 2004 , pp. 75-83 More about this Journal
Abstract
This study is focused on the constitutive model in order to represent brittleness and dilatancy of cohesionless soils. The constitutive model was proposed on the basis of an anisotropic hardening rule with generalized isotropic hardening rule. The shape of yield surface is a simple cylinder type in stress space and it makes the model practically useful. Flow rule was approximated by a concrete function on dilatancy. A peak stress ratio was defined to model brittle stress-strain relationships. The proposed model was formulated and implemented to calculate the stress-strain relationship from triaxial tests. In the companion paper the proposed model will be verified by comparison with the triaxial test results.
Keywords
Brittleness; Constitutive model; Dilatancy; Effective stress mode; Generalized isotropic hardening rule;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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