26 citations · 52 across the 5 of their papers we have counts for
8 papers
Grain size effect on the compression and relaxation of a granular column: solid particles vs dust agglomerates
Felipe Pacheco-Vázquez, Tomomi Omura, Hiroaki Katsuragi
We studied experimentally the effect of grain size and maximum load on the compaction and subsequent relaxation of a granular column when it is subjected to vertical uniaxial compr…
Primordial porous structure of chondrite parent bodies due to self-gravity
Tomomi Omura, Akiko M. Nakamura
The porosity of an asteroid is important when studying the evolution of our solar system through small bodies and for planning mitigation strategies to avoid disasters due to aster…
Undulating compression and multi-stage relaxation in a granular column consisting of dust particles or glass beads
Felipe Pacheco-Vázquez, Tomomi Omura, Hiroaki Katsuragi
For fundamentally characterizing the effect of hierarchical structure in granular matter, a set of compression-relaxation tests for dust particles and glass beads confined in a cyl…
Centroid migration on an impacted granular slope due to asymmetric ejecta deposition and landsliding
Tomomi Omura, Shinta Takizawa, Hiroaki Katsuragi
For a fundamental understanding of terrain relaxation occurring on sloped surfaces of terrestrial bodies, we analyze the crater shape produced by an impact on an inclined granular…
Laboratory Experiments on Agglomeration of Particles in a Granular Stream
Yuuya Nagaashi, Tomomi Omura, Masato Kiuchi +3
Inelastic collisions occur among regolith particles, such as those in the ejecta curtain from a crater, and may cause clustering or agglomeration of particles and thus produce disc…
Estimating the porosity structure of granular bodies using the Lane-Emden equation applied to laboratory measurements of the pressure-density relation of fluffy granular samples
Tomomi Omura, Akiko M. Nakamura
The porosity structure of a granular body is an important characteristic that affects evolutionary changes in the body. We conducted compression experiments using fluffy granular s…