AUS: Anisotropic undrained shear strength model for clays



Krabbenhoft, Kristian, Galindo-Torres, Sergio Andres ORCID: 0000-0002-2400-2794, Zhang, Xue ORCID: 0000-0002-0892-3665 and Krabbenhoft, Jorgen
(2019) AUS: Anisotropic undrained shear strength model for clays. INTERNATIONAL JOURNAL FOR NUMERICAL AND ANALYTICAL METHODS IN GEOMECHANICS, 43 (17). pp. 2652-2666.

[img] Text
AUS_NAG2.pdf - Author Accepted Manuscript

Download (985kB) | Preview

Abstract

<jats:title>Summary</jats:title><jats:p>A total stress model applicable to clays under undrained conditions is presented. The model involves three strength parameters: the undrained shear strengths in triaxial compression, triaxial extension, and simple shear. The amount of physical anisotropy implied by the model is a function of the relative magnitude of these three strengths assuming a Mises‐type plastic potential. Elastoplastic deformation characteristics below failure are accounted for by a hardening law requiring two additional parameters that can be related to the axial strains halfway to failure in triaxial compression and extension. Finally, elasticity is accounted for by Hooke law. The result is a relatively simple model whose parameters can all be inferred directly from a combination of in situ and standard undrained laboratory tests. The model is applied to a problem involving the horizontal loading of a monopile foundation for which full scale tests have been previously conducted. The model shows good agreement with the measured data.</jats:p>

Item Type: Article
Uncontrolled Keywords: anisotropy, clay, generalized tresca, monopiles, undrained shear strength
Depositing User: Symplectic Admin
Date Deposited: 18 Dec 2019 10:04
Last Modified: 18 Sep 2023 18:16
DOI: 10.1002/nag.2990
Related URLs:
URI: https://livrepository.liverpool.ac.uk/id/eprint/3066829