Doctoral Dissertations
Date of Award
8-2020
Degree Type
Dissertation
Degree Name
Doctor of Philosophy
Major
Civil Engineering
Major Professor
Prof. Khalid Alshibli
Committee Members
Prof. Angelica Palomino, Prof. Timothy Truster, and Prof. Claudia Rawn
Abstract
The constitutive behavior of sand has been conventionally measured and modeled using global-scale measurements of stresses and strains at the boundaries of laboratory-sized specimens. However, acquiring global-scale measurements has originally been proposed for solid metals, while sand possesses a particulate nature with complex mechanics that we still know little about its behavior. This dissertation exploited recent advances in 3D x-ray experiments and 3D finite element (FE) computer simulations that would significantly enhance our understanding of sand constitutive behavior. Fundamental properties at different scale-levels ranging from crystal structure to laboratory-sized specimens were investigated using synchrotron micro-computed tomography (SMT), digital image processing, 3D x-ray diffraction (3DXRD), and 3D FE analysis.
Recommended Citation
Imseeh, Wadi, "Three-Dimensional Assessment of the Constitutive and Fracture Behaviors of Silica Sand at Particle-Scale Using X-ray Experiments and Finite Element Analysis. " PhD diss., University of Tennessee, 2020.
https://trace.tennessee.edu/utk_graddiss/11593
Included in
Computational Engineering Commons, Engineering Mechanics Commons, Geological Engineering Commons, Geotechnical Engineering Commons, Mechanics of Materials Commons, Structural Engineering Commons