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Onset of Strain Localization in Unsaturated Soils Subjected to Constant Water Content Loading

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Bifurcation and Degradation of Geomaterials in the New Millennium (IWBDG 2014)

Part of the book series: Springer Series in Geomechanics and Geoengineering ((SSGG))

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Abstract

Analytical solutions for the inception of strain localization in unsaturated soils were implemented into the constitutive driver for a bounding surface plasticity model. Effects of the initial net mean stress and initial suction on the inception of strain localization in a porous material subjected to constant water content plane strain compression (PSC) were investigated. It was found that decreases in both, the initial suction and the initial net mean stress decreased the axial strain at onset, thus effectively increasing the susceptibility to strain localization. The corresponding deformation bands were largely contractant shear bands. Dilatant shear bands occurred only for the initial over consolidation ratios (OCR) larger than 3.25.

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Reference

  • Khalili N, Habte M, Zagarbashi S (2008) A fully coupled flow deformation model for cyclic analysis of unsaturated soils including hydraulic and mechanical hystereses. Comput Geotech 35:872–889

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Authors and Affiliations

  1. Kansas State University, Manhattan, KS, 66506-5000, USA

    Dunja Perić

  2. The University of New South Wales, Sydney, NSW, 2052, Australia

    Gaofeng Zhao & Nasser Khalili

Authors
  1. Dunja Perić
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  2. Gaofeng Zhao
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  3. Nasser Khalili
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Corresponding author

Correspondence to Dunja Perić .

Editor information

Editors and Affiliations

  1. Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hong Kong, China

    Kam-Tim Chau

  2. Department of Civil and Environmental Engineering, The Hong Kong University of Science and Technology, Kowloon, Hong Kong, China

    Jidong Zhao

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© 2015 Springer International Publishing Switzerland

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Perić, D., Zhao, G., Khalili, N. (2015). Onset of Strain Localization in Unsaturated Soils Subjected to Constant Water Content Loading. In: Chau, KT., Zhao, J. (eds) Bifurcation and Degradation of Geomaterials in the New Millennium. IWBDG 2014. Springer Series in Geomechanics and Geoengineering. Springer, Cham. https://doi.org/10.1007/978-3-319-13506-9_25

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  • DOI: https://doi.org/10.1007/978-3-319-13506-9_25

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  • Publisher Name: Springer, Cham

  • Print ISBN: 978-3-319-13505-2

  • Online ISBN: 978-3-319-13506-9

  • eBook Packages: EngineeringEngineering (R0)

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