Universality of jammed frictional packing

Understanding disordered particle packings is of great significance from both theoretical and engineering perspectives. Establishing a quantitative relationship between nonspherical shape packing properties generally challenging, due to the complex geometry topology. Here we resolve this issue by numerically investigating jammed various frictional congruent particles, including superellipsoids polyhedra, over wide range friction coefficients. We discover several universal characteristics across different shapes frictions. In infinite limit, coordination numbers for all approach identical lower bound jamming. The resulting ``random loose packing'' (RLP) state possesses minimal structural correlations, with fraction as simple monotonic decreasing function orientation-averaged excluded volume shapes. Packings finite can then be understood via perturbative based on RLP. nature RLP illuminated percolation transition contacting network during quasistatic densification process. Moreover, large-scale density fluctuations are also strongly suppressed, broadening previous claim hyperuniformity frictionless ones.