Rotational diffusion and rotational correlations in frictional amorphous disk packings under shear

Dong Wang, Nima Nejadsadeghi, Yan Li, Shashi Shekhar, Anil Misra, Joshua A. Dijksman
2021 Soft Matter  
Particles in a packing will rotate when the packing is deformed. We find that rotations display diffusive dynamics set by particle friction and packing fraction. Rotations are spatially anticorrelated and directly indicative of the system pressure.
doi:10.1039/d1sm00525a pmid:34323255 fatcat:vblzsmw6mzce5fmxpmgqlejd7e