A discrete element method to model coating layer mechanical properties with bimodal and pseudo-full particle size distributions

The mechanical properties of paper coating layers are important in converting operations such as calendering, printing, and folding. While several experimental theoretical studies have advanced our knowledge these systems, a particle level understanding issues like crack-at-the-fold lacking. A discrete element method (DEM) model is used to describe bending tension deformations layer. particles the either bimodal distributions or pseudo-full size spherical particles. impact distribution on predicted layer reported. Inputs include binder film concentration. predicts crack formation function parameters also calculates modulus, maximum stress, strain-to-failure. simulation results compared previous results. Reasonable predictions were obtained for both tensile range latex-starch ratios at various concentrations. influence packing density