Kenichi Maeda

TL;DR: In this article, the authors used discrete element models to show the dependence of critical state conditions on grading and the way in which the particle assembly seeks out new critical state condition as the grading changes.

TL;DR: In this article, the physical properties of sands with different primary parameters were investigated extensively, including grain density, shape and size distribution of all samples, and some index properties characterizing physical properties, such as maximum and minimum void ratios, crushability and angle of repose of sands, were also measured.

TL;DR: In this paper, the authors developed a parallel continuum model for the mechanical consequences of erosion, based on two-dimensional discrete element analyses of assemblies of circular discs of various gradings, where the process of internal erosion of fine particles from a soil progressively narrows the grading of the soil.

TL;DR: In this paper, the deformation of granular materials with different grain shapes was simulated using two-dimensional DEM under different stress-levels and densities, and the evolution rule of stress-induced anisotropy and its limitation as well as the existence of a critical state of fabric were revealed.

TL;DR: In this paper, a new attempt to develop the procedure which fuses discrete and continuum analyses by smoothing particle hydrodynamics (SPH) with account for the interaction among three phases.