MICROMECHANICAL STUDY OF STRAIN LOCALIZATION AND FAILURE IN THE DIRECT SHEAR TEST OF GRANULAR SOILS: Fid-Bau Portal

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MICROMECHANICAL STUDY OF STRAIN LOCALIZATION AND FAILURE IN THE DIRECT SHEAR TEST OF GRANULAR SOILS

Gutierrez, Marte / Wang, Jianfeng

Summary This paper presents a study of the micromechanical response of granular materials in the Direct Shear Test (DST) using DEM (Discrete Element Method). Parametric studies were conducted to investigate the effects of specimen length and height (in relation to the particle size) on the bulk granular material shear strength and shear banding behavior in the DST. A mesh-free strain calculation method previously developed by the authors was used to capture and visualize the evolution of strain localization and failure inside the direct shear box.

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MICROMECHANICAL STUDY OF STRAIN LOCALIZATION AND FAILURE IN THE DIRECT SHEAR TEST OF GRANULAR SOILS

Gutierrez, Marte / Wang, Jianfeng

Summary This paper presents a study of the micromechanical response of granular materials in the Direct Shear Test (DST) using DEM (Discrete Element Method). Parametric studies were conducted to investigate the effects of specimen length and height (in relation to the particle size) on the bulk granular material shear strength and shear banding behavior in the DST. A mesh-free strain calculation method previously developed by the authors was used to capture and visualize the evolution of strain localization and failure inside the direct shear box.

MICROMECHANICAL STUDY OF STRAIN LOCALIZATION AND FAILURE IN THE DIRECT SHEAR TEST OF GRANULAR SOILS

Gutierrez, Marte / Wang, Jianfeng

Summary This paper presents a study of the micromechanical response of granular materials in the Direct Shear Test (DST) using DEM (Discrete Element Method). Parametric studies were conducted to investigate the effects of specimen length and height (in relation to the particle size) on the bulk granular material shear strength and shear banding behavior in the DST. A mesh-free strain calculation method previously developed by the authors was used to capture and visualize the evolution of strain localization and failure inside the direct shear box.

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Title:

MICROMECHANICAL STUDY OF STRAIN LOCALIZATION AND FAILURE IN THE DIRECT SHEAR TEST OF GRANULAR SOILS

Contributors:

Gutierrez, Marte (author) / Wang, Jianfeng (author)

Published in:

Multiscale and Multiphysics Processes in Geomechanics ; 17-20

Springer Series in Geomechanics and Geoengineering

Publication date:

2011-01-01

Size:

4 pages

ISBN:

978-3-642-19629-4 , 978-3-642-19630-0

ISSN:

1866-8755 , 1866-8763

DOI:

https://doi.org/10.1007/978-3-642-19630-0_5

Type of media:

Article/Chapter (Book)

Type of material:

Electronic Resource

Language:

English

Keywords:

direct shear test , discrete element method , progressive failure , specimen size scale effects Engineering , Geoengineering, Foundations, Hydraulics , Geotechnical Engineering & Applied Earth Sciences , Geophysics and Environmental Physics

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