411 citations · 1.2k across the 12 of their papers we have counts for
12 papers
Stress-dependent normal mode frequencies from the effective mass of granular matter
Yanqing Hu, David L. Johnson, John J. Valenza +2
A zero-temperature critical point has been invoked to control the anomalous behavior of granular matter as it approaches jamming or mechanical arrest. Criticality manifests itself…
Frequency-dependent attenuation and elasticity in unconsolidated earth materials: effect of damping
Yanqing Hu, Hernan A. Makse, John J. Valenza +1
We use the Discrete Element Method (DEM) to understand the underlying attenuation mechanism in granular media, with special applicability to the measurements of the so-called effec…
Dynamic effective mass of granular media and the attenuation of structure-borne sound
John Valenza, Chaur-Jian Hsu, Rohit Ingale +3
We report an experimental and theoretical investigation of the frequency-dependent effective mass, , of loose granular particles which occupy a rigid cavity to a give…
Aspects of diffusive-relaxation dynamics with a non-uniform, partially absorbing boundary in general porous media
Seungoh Ryu, David Linton Johnson
We consider the Helmholtz problem in the context of the evolution of uniform initial distribution of a physical attribute in general porous media subject to a partially absorbing b…
Dynamic effective mass of granular media
Chaur-Jian Hsu, David L. Johnson, Rohit A. Ingale +3
We develop the concept of frequency dependent effective mass, M(omega), of jammed granular materials which occupy a rigid cavity to a filling fraction of 48%, the remaining volume…
Granular dynamics in compaction and stress relaxation
Jasna Brujic, Ping Wang, Chaoming Song +3
Elastic and dissipative properties of granular assemblies under uniaxial compression are studied both experimentally and by numerical simulations. Following a novel compaction proc…