9 citations · 39 across the 11 of their papers we have counts for
12 papers
Granular Rods Fall Faster in Denser Obstacle Fields
Fumiaki Nakai, Hiroaki Katsuragi
How particle shape affects transport through obstacle fields under external driving is a fundamental question in nonequilibrium physics. We simulate a dissipative rod falling under…
Steady shear rheology of a granular crystal containing a single dislocation
Fumiaki Nakai
Monodisperse granular particles can form crystals whose yielding behavior is strongly affected by dislocations and differs markedly from that of conventional amorphous granular mat…
Anomalous phonon dispersion near yielding in athermal crystals
Fumiaki Nakai, Michio Otsuki, Kuniyasu Saitoh +1
Vibrational properties of ordered athermal solids near yielding remain poorly understood. We show that yielding in a sheared crystal is governed not by a single localized instabili…
Dislocation Glides in Monolayered Granular Media: Effect of Lattice Constant
Fumiaki Nakai, Takashi Uneyama, Yuto Sasaki +2
A recent study demonstrated that granular crystals containing a single dislocation exhibit dislocation glide analogous to that observed in atomic-scale crystals, resulting in plast…
Dislocation Glides in Granular Media
Fumiaki Nakai, Takashi Uneyama, Yuto Sasaki +2
Atomic crystals with dislocations deform plastically at low stresses via dislocation glide. Whether dislocation glide occurs in macroscopic frictional granular media has remained u…
Reducing segregation in vibrated binary-sized granular mixtures by excessive small particle introduction
Fumiaki Nakai, Kiwamu Yoshii
We numerically examine binary-sized granular mixtures confined between two parallel walls subjected to vertical vibration using the discrete element method. For a size ratio of …