An investigation of single sand particle fracture using X-ray micro-tomography

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Generation of a realistic 3D sand assembly using X‐ray micro‐computed tomography and spherical harmonic‐based principal component analysis (2017, background): “This novel and interesting finding may be related to two particle characteristics: (i) bigger particles are easily ground and rounded during the geological transportation process; and (ii) smaller particles are more likely to be the crushed fragments of bigger particles, which are much more irregula”
3D quantitative shape analysis on form, roundness, and compactness with μCT (2016, background): “Roundness of rock particles, which normally increases through abrasion, can change greatly without much effect on form.”
Three-dimensional sphericity, roundness and fractal dimension of sand particles (2018, unknown): “…have been introduced, including the Alshibli et al. (2014) material roughness indices (i.e. average and root-meansquare roughness) for a local area, Zheng & Hryciw (2015) statistical indices (i.e. locally weighted regression and k-fold cross-validation) and the Fourier descriptors of Bowman et al.…”