A numerical approach for the determination of the primary fabric of granular soils

To, Huu Duc, Galindo-Torres, Sergio Andres, and Scheuermann, Alexander (2014) A numerical approach for the determination of the primary fabric of granular soils. Applied Mechanics and Materials, 553. pp. 489-494.

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Soil is a porous medium and its primary fabric is of vital importance for many soil behaviour studies, for example, the assessment of suffusion. Most of current numerical models of artificial soil generate soil particles randomly and/or drop them down into a container to get a soil specimen. Therefore, particle position is not under control, then, particle arrangement is overlooked. This paper presents a sequential packing method, which allows studying two different types of particle arrangements: (1) layer-wise, producing a layered structure and (2) discrete, leading to a rather homogeneous soil structure. The generated soil specimens are compacted using a discrete element model under oedometric boundary conditions to create force chains within the soil structure. These force chains are then analysed to determine the soil fraction contributing to the load transfer. The results of the study provide an evidence of the influence of the particle arrangements on the appearance of the soil skeleton and fraction of particle involved.

Item ID: 46004
Item Type: Article (Research - C1)
ISSN: 1662-7482
Funders: Australian Research Council (ARC), Vietnamese Ministry of Education and Training (MOET), University of Queensland
Projects and Grants: ARC Discovery Project (DP120102188)
Date Deposited: 10 Oct 2016 03:13
FoR Codes: 09 ENGINEERING > 0905 Civil Engineering > 090501 Civil Geotechnical Engineering @ 50%
08 INFORMATION AND COMPUTING SCIENCES > 0802 Computation Theory and Mathematics > 080205 Numerical Computation @ 50%
SEO Codes: 87 CONSTRUCTION > 8702 Construction Design > 870201 Civil Construction Design @ 100%
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