A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Selected Observations from 3-D Experimental and Numerical Studies of Shear Banding in Biaxial Shear Tests
A significant amount of research has been performed over the last two decades to characterize the microstructure of sand specimens and advance the understanding of the link between micro-structural properties and engineering behavior of these soils. Much of the research has been limited to two-dimensional (2-D) analysis that results in loss of information regarding the skeleton of the particle-pore structure and other attributes of the actual three-dimensional (3-D) microstructure. More recently, a number of techniques for studying these issues in 3-D have emerged. This paper uses a high-resolution optical microscopy based method for reconstruction of actual 3-D specimen microstructures. A montage and serial sectioning technique was implemented for creating 3-D microstructure volumes from 2-D optical images. The reconstructed 3-D digital structures were characterized for microstructural features. Specific attention was focused on shear band thickness. Simulated DEM sand structures were also constructed and characterized.
Selected Observations from 3-D Experimental and Numerical Studies of Shear Banding in Biaxial Shear Tests
A significant amount of research has been performed over the last two decades to characterize the microstructure of sand specimens and advance the understanding of the link between micro-structural properties and engineering behavior of these soils. Much of the research has been limited to two-dimensional (2-D) analysis that results in loss of information regarding the skeleton of the particle-pore structure and other attributes of the actual three-dimensional (3-D) microstructure. More recently, a number of techniques for studying these issues in 3-D have emerged. This paper uses a high-resolution optical microscopy based method for reconstruction of actual 3-D specimen microstructures. A montage and serial sectioning technique was implemented for creating 3-D microstructure volumes from 2-D optical images. The reconstructed 3-D digital structures were characterized for microstructural features. Specific attention was focused on shear band thickness. Simulated DEM sand structures were also constructed and characterized.
Selected Observations from 3-D Experimental and Numerical Studies of Shear Banding in Biaxial Shear Tests
Frost, J. D. (author) / Evans, T.M. (author) / Lu, Y. (author) / Zhao, X. (author)
GeoCongress 2012 ; 2012 ; Oakland, California, United States
GeoCongress 2012 ; 1116-1125
2012-03-29
Conference paper
Electronic Resource
English
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