CUED Publications database

Modeling cyclic behavior of lightly overconsolidated clays in simple shear

Pestana, JM and Biscontin, G and Nadim, F and Andersen, K (2000) Modeling cyclic behavior of lightly overconsolidated clays in simple shear. Soil Dynamics and Earthquake Engineering, 19. pp. 501-519. ISSN 0267-7261

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Abstract

Assessment of seismic performance and estimation of permanent displacements for submerged slopes require the accurate description of the soil's stress-strain-strength relationship under irregular cyclic loading. The geological profile of submerged slopes on the continental shelf typically consists of normally to lightly overconsolidated clays with depths ranging from a few meters to a few hundred meters and very low slope angles. This paper describes the formulation of a simplified effective-stress-based model, which is able to capture the key aspects of the cyclic behavior of normally consolidated clays. The proposed constitutive law incorporates anisotropic hardening and bounding surface principles to allow the user to simulate different shear strain and stress reversal histories as well as provide realistic descriptions of the accumulation of plastic shear strains and excess pore pressure during successive loading cycles. (C) 2000 Published by Elsevier Science Ltd.

Item Type: Article
Uncontrolled Keywords: Clays Consolidation Constitutive laws Cyclic behavior Simple shear Site response analysis Soil behavior Submerged slopes
Subjects: UNSPECIFIED
Divisions: Div D > Geotechnical and Environmental
Depositing User: Cron Job
Date Deposited: 07 Mar 2014 11:28
Last Modified: 08 Dec 2014 02:25
DOI: 10.1016/S0267-7261(00)00032-4