The influence of particle size distribution on the stress distribution in granular materials

This study systematically explores the effect of shape particle size distribution (PSD) on stress transmission in granular materials using three-dimensional discrete-element method simulations. Extending prior studies that have focused bimodal mixtures coarser and finer grains, a broad range isotropically compressed specimens with spherical particles linear, fractal gap-graded distributions is considered. Considering isotropic conditions, nature was analysed by determining mean effective stresses considering proportion this transmitted different sizes. For contact-based perspective adopted to consider both within between fractions. A clear correlation emerged cumulative sizes volume for continuous PSDs. does not hold universally materials. In fractions depends upon ratio percentage grains specimen. contrast gradings, among exhibits marked sensitivity density. Basic network analysis shown provide useful insight into