Effects of particle size ratio on the macro- and microscopic behaviors of binary mixtures at the maximum packing efficiency state

The Effect of Particle Size Distribution And Shape On The Microscopic Behaviors of Loess Via DEM

“…However, filling and occupying effect are idealized and can only be met by a suitable particle size ratio. For example, Zhou et al(2016) mentioned that when binary spheres are mixed, when the particle size ratio is, In fact, the particle size of any kind of natural particulate matter is mostly continuous, and it is difficult to accumulate in an ideal state. Comparing the results of Fig.…”

“…This may be linked to the porosity of the sample. The research on binary mixture in literature (Zhou et al, 2016) shows that with the increase of particle size ratio, the porosity of particles decreases and the peak strength increases, and the change of system porosity is also associated with the shape and stacking state of particles. Fig.…”

“…With the progress of the test, the average coordination number of all samples increases first, then decreases rapidly, and finally stabilizes at a certain value until the end of the test. The initial increase of the average coordination number is caused by the compression and contraction of the sample, and then the sample is in a hardening state, the particles are rearranged, and the contact between the particles disappears largely, but the residual contact still supports the sample to continue to be compressed under load until the final state, and the contact at this time is effective contact (Zhou et al, 2016).…”

On the contact problem of soft-rigid interfaces: incorporation of Mindlin-Deresiewicz and self-deformation concepts

“…Environmental issues related with the enormous disposal of wasted automobile tires in landfills have led the scientific and engineering communities to find effective solutions in recycling and beneficially reusing these materials most commonly in a shredded form in various projects including transportation, infrastructure and geotechnical engineering applications [1,2]. Over the previous three decades, many researchers have investigated the properties of recycled automobile tires in shredded (and granular) form, pure as well as mixed with soils and many studies have indicated promising applications in ground treatment and enhancement of soil mechanical behavior [3][4][5][6][7][8][9][10][11][12][13][14][15][16]. This has also resulted in ASTM to issue specifications related with the use of recycled shredded/granulated rubber in infrastructure projects [17,18].…”

Elasticity and Wave Propagation in Granular Materials

“…Binary granular mixtures comprise a wide range of natural and industrial materials, whose mechanical and acoustic behavior is strongly influenced by the relative amount of the components [53,274]. While several researchers have investigated bidisperse mixtures [123,273], the investigation of mixtures made of two different components with different material properties (densities, visco-elastic moduli) is limited so far to phenomenological observations; a deeper insight into the governing micromechanical properties is still missing [4,33,39]. Through better understanding the underlying small-scale physics, the effective behavior of mixtures can be robustly predicted, tailored to specific technical applications and even optimized on demand.…”