activity
20242026
most citedOrigin of slow earthquake statistics in low-friction soft granular shear

4 citations · 6 across the 6 of their papers we have counts for

collaborators

6 papers

cond-mat.soft2026

Granular Rods Fall Faster in Denser Obstacle Fields

Fumiaki Nakai, Hiroaki Katsuragi

How does particle shape affect driven transport through obstacle fields? We simulate a dissipative rod falling under gravity through randomly placed fixed obstacles. For sufficient…

cond-mat.mtrl-sci2026

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…

cond-mat.soft2026

Constitutive flow law for hydrogel granular rafts near the brittle-ductile transition

Yuto Sasaki, Hiroaki Katsuragi

Spatially varying flow laws have been identified in dry granular flow, yet their applicability to unjammed suspensions remains unclear. This study demonstrates that the quasistatic…

cond-mat.soft2025★ 1 cited

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…

physics.geo-ph2025★ 4 cited

Origin of slow earthquake statistics in low-friction soft granular shear

Yuto Sasaki, Hiroaki Katsuragi

Slow earthquakes differ from regular earthquakes in their slower moment release and size distribution dominated by smaller events. However, the physical origin of these slow earthq…

cond-mat.mtrl-sci2024★ 1 cited

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…