Stress transmission in wet granular materials.

摘要: We analyze stress transmission in wet granular media the pendular state by means of three-dimensional molecular-dynamics simulations. show that tensile action capillary bonds induces a self-stressed particle network organized two percolating “phases” positive and negative pressures. Various statistical descriptors microstructure bond force are used to characterize this partition. Two basic properties emerge: 1) highest pressure is located bulk each phase; 2) lowest level occurs at interface between phases, involving also largest connectivity particles via compressive bonds. When confining applied, number falls off phase breaks into aggregates isolated sites.