Hiroaki Katsuragi

Soft Matter Earth & Planetary Physics (SMEPP) Subgroup

Welcome to Hiroaki Katsuragi's SMEPP web page. We are studying experimental soft matter physics relating to earth and planetary phenomena. In particular, granular physics is mainly studied by various experiments. Join us if you are interested in.

Soft Matter Earth and Planetary Science Group

Department of Earth and Space Science, Osaka University, Japan (admission info)

Profile

[日本語]

RECENT/SELECTED PUBLICATION LIST:

(Complete list of publication is here)

Origin of slow earthquake statistics in low-friction soft granular shear Y. Sasaki and H. KatsuragiNat. Commun. 16, 1,236 (2025).
Energy dissipation caused by impact or slow compression of dust aggregates consisting of fibers S. Iwano, R. Tanaka, and H. KatsuragiProg. Earth Planet. Sci. 12, 60 (2025).
Dislocation Glides in Granular Media F. Nakai, T. Uneyama, Y. Sasaki, K. Yoshii, and H. KatsuragiPhys. Rev. Lett. 135, 048202 (2025).
Applicability of extended modified Archimedes’ law to various granular and intruder properties N. Iikawa and H. KatsuragiComput. Particle Mech. 12, 3371 (2025).
Liquid water transport model in hydrophilic granular media: Preliminary validation with drying rate of hierarchical granular materialH. Yasuda, H. Katsuragi, and M. KatsuraPhys. Rev. Fluids 10, 034302 (2025).
Resistive force modelling for shallow cone penetration into dry and wet granular layersN. Iikawa and H. Katsuragi,Acta Geotechnica 20, 1279, (2025).
Floating drift on a vibro-fluidized relaxing granular slopeY. Yamamoto and H. Katsuragi,Phys. Rev. Research 6, 043178 (2024).
Air-jet impact craters on granular surfaces: a universal scalingP. Sonar and H. Katsuragi,J. Fluid Mech. 998, A29 (2024).
Drop impact on wet granular beds: effects of water-content on crateringW. Zhang, H. Katsuragi, and K. Yamamoto,Soft Matter 20, 6120 (2024).
Energy dissipation of a sphere rolling up a granular slope: slip and deformation of granular surfaceT. Fukumoto, K. Yamamoto, M. Katsura, and H. Katsuragi, Phys. Rev. E 109, 014903 (2024).
Disordering two-dimensional magnet-particle configurations using bidispersityK. Tsuchikusa, K. Yamamoto, M. Katsura, C.T. de Paula, J.A.C. Modesto, S. Dorbolo, F. Pacheco Vazquez, Y.D. Sobral, and H. Katsuragi,J. Chem. Phys. 158, 214501 (2023).
Impact drag force exerted on a projectile penetrating into a hierarchical granular bedF. Okubo and H. Katsuragi, Astron. Astrophys. 664, A147 (2022)
Deformation of a rotated granular pile governed by body-force-dependent frictionT. Irie, R. Yamaguchi, S. Watanabe, and H. Katsuragi,Phys. Rev. E 104, 064902 (2021)
Undulating compression and multi-stage relaxation in a granular column consisting of dust particles or glass beadsF. Pacheco Vazquez, T. Omura, and H. Katsuragi, Phys. Rev. Research 3, 013190 (2021)
Centroid migration on an impacted granular slope due to the asymmetric ejecta deposition and landslidingT. Omura, S. Takizawa, and H. Katsuragi, Mon. Not. R. Astron. Soc. 502, 293 (2021)
Scaling laws for the oblique impact cratering on an inclined granular surfaceS. Takizawa and H. Katsuragi Icarus 335, 113409 (2020)
Impact-induced energy transfer and dissipation in granular clusters under microgravity conditionsH. Katsuragi and J. Blum, Phys. Rev. Lett. 121, 208001 (2018).See also Physics - Synopsis: Throwing Dust at Planet Formation.
Void structure stability in wet granular matter and its application to crab burrows and cometary pitsA. Shinoda, S. Fujiwara, H. Niiya, and H. Katsuragi, Sci. Rep. 8, 15784 (2018).
Relaxation Dynamics of a Granular Pile on a Vertically-Vibrating PlateD. Tsuji, M. Otsuki, and H. Katsuragi, Phys. Rev. Lett. 120, 128001 (2018).
The Physics of Protoplanetesimal Dust Agglomerates. IX. Mechanical properties of dust aggregates probed by a solid-projectile impactH. Katsuragi and J. Blum, Astrophys. J. 851, 23 (2017).
Obstacle-shape effect in a two-dimensional granular silo flow fieldK. Endo, K. Anki Reddy, and H. Katsuragi, Phys. Rev. Fluids 2, 094302 (2017).
Sensitivity of Granular Force Chain Orientation to Disorder-induced Metastable RelaxationN. Iikawa, M. M. Bandi, and H. Katsuragi, Phys. Rev. Lett. 116, 128001 (2016).
Timescale of asteroid resurfacing by regolith convection resulting from the impact-induced global seismic shakingT. M. Yamada, K. Ando, T. Morota, and and H. Katsuragi, Icarus 272, 165 (2016).
Morphology scaling of drop impact onto a granular layerH.Katsuragi, Phys. Rev. Lett. 104, 218001 (2010).See also Phys. Rev. Focus 25, Story 20 (2010).
Jamming and growth of dynamical heterogeneities versus depth for granular heap flowH. Katsuragi, A. R. Abate, and D. J. Durian, Soft Matter 6, 3023 (2010).
Unified force law for granular impact crateringH.Katsuragi and D. J. Durian, Nat. Phys. 3, 420 (2007).
Diffusion-induced spontaneous pattern formation on gelation surfacesH.Katsuragi, Europhys. Lett. 73, 793 (2006).
Explosive fragmentation of a thin ceramic tube using pulsed powerH. Katsuragi, S. Ihara, and H. Honjo, Phys. Rev. Lett. 95, 095503 (2005).
Multiaffinity and entropy spectrum of self-affine fractal profilesH. Katsuragi and H. Honjo, Phys. Rev. E 59, 254 (1999).

Complete Publication list

http://link.aps.org/doi/10.1103/PhysRevFocus.25.20

https://www.oist.jp/news-center/news/2016/5/18/proof-pudding

Hiroaki Katsuragi

Professor

Department of Earth and Space Science,

Graduate School of Science,

The University of Osaka (Osaka University)

1-1 Machikaneyama, Toyonaka, Osaka 560-0043, JAPAN

Phone: +81-(0)6-6850-5799

E-mail: katsuragi ”AT” ess.sci.osaka-u.ac.jp

Converted: April 29, 2021

Open: Aug. 22, 2015

Lecture slides (IITK 2024/9-10) : ver.0930 , ver.1002