Next Article in Journal
Evaluation of Fine Aggregate Morphology by Image Method and Its Effect on Skid-Resistance of Micro-Surfacing
Previous Article in Journal
A Friction-Inertial-Based Rotary Motor: Design, Modelling and Experiments
Open AccessArticle

A Study of the Particle-Level Fabric and Morphology of Granular Soils under One-Dimensional Compression Using Insitu X-ray CT Imaging

Department of Civil Engineering, Monash University, Melbourne, Victoria 3800, Australia
*
Author to whom correspondence should be addressed.
Materials 2018, 11(6), 919; https://doi.org/10.3390/ma11060919
Received: 7 May 2018 / Revised: 17 May 2018 / Accepted: 28 May 2018 / Published: 29 May 2018
(This article belongs to the Section Structure Analysis and Characterization)
The particle morphology and fabric of a granular soil influence its mechanical behavior. This study focuses on the evolution of the particle-level fabric and morphology of a uniformly graded sand sample subjected to one-dimensional compression up to 64 MPa. The microstructural changes with increased stresses were captured using in situ high-resolution X-ray computed tomography (X-ray CT) imaging. The processed images of particles were separated using the Monash Particle Separation Method (MPSM) for subsequent fabric and morphological analyses. The variations of various fabric parameters were studied using the separated particle volumes. New methods of assessing the morphology and crushability of particles were introduced including a comprehensive algorithm for determining coordination number, branch and contact normal vectors. Results of all fabric parameters were analyzed and discussed with reference to observed changes. Potential mechanisms were identified and relevant correlations were developed where warranted. View Full-Text
Keywords: granular soils; one-dimensional compression; morphology; fabric; X-ray CT imaging granular soils; one-dimensional compression; morphology; fabric; X-ray CT imaging
Show Figures

Figure 1

MDPI and ACS Style

Alam, M.F.; Haque, A.; Ranjith, P.G. A Study of the Particle-Level Fabric and Morphology of Granular Soils under One-Dimensional Compression Using Insitu X-ray CT Imaging. Materials 2018, 11, 919.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop