76 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
11 papers
Large-scale frictionless jamming with power-law particle size distributions
Joseph M. Monti, Joel T. Clemmer, Ishan Srivastava +3
Due to significant computational expense, discrete element method simulations of jammed packings of size-dispersed spheres with size ratios greater than 1:10 have remained elusive,…
Jamming of Bidisperse Frictional Spheres
Ishan Srivastava, Scott A. Roberts, Joel T. Clemmer +3
By generalizing a geometric argument for frictionless spheres, a model is proposed for the jamming density of mechanically stable packings of bidisperse, frictional spheres.…
Flow and Arrest in Stressed Granular Materials
Ishan Srivastava, Leonardo E. Silbert, Jeremy B. Lechman +1
Flowing granular materials often abruptly arrest if not driven by sufficient applied stresses. Such abrupt cessation of motion can be economically expensive in industrial materials…
Structural and mechanical characteristics of sphere packings near the jamming transition: From fully amorphous to quasi-ordered structures
Hideyuki Mizuno, Kuniyasu Saitoh, Leonardo E. Silbert
Mechanically stable sphere packings are generated in three-dimensional space using the discrete element method, which span a wide range in structural order, ranging from fully amor…
Granular packings with sliding, rolling and twisting friction
A. P. Santos, Dan S. Bolintineanu, Gary S. Grest +4
Intuition tells us that a rolling or spinning sphere will eventually stop due to the presence of friction and other dissipative interactions. The resistance to rolling and spinning…
Viscometric flow of dense granular materials under controlled pressure and shear stress
Ishan Srivastava, Leonardo E. Silbert, Gary S. Grest +1
This study examines the flow of dense granular materials under external shear stress and pressure using discrete element method simulations. In this method, the material is allowed…
Hysteresis Effects in Social Behavior with Parasitic Infection
Michael Phillips
Recent work has found that the behavior of an individual can be altered when infected by a parasite. Here we explore the question: under what conditions, in principle, can a genera…
Evolution of Internal Granular Structure at the Flow-Arrest Transition
Ishan Srivastava, Jeremy B. Lechman, Gary S. Grest +1
The evolution of the internal granular structure in shear-arrested and shear-flowing states of granular materials is characterized using fabric tensors as descriptors of the intern…
Effect of Shape and Friction on the Packing and Flow of Granular Materials
K. Michael Salerno, Dan S. Bolintineanu, Gary S. Grest +4
The packing and flow of aspherical frictional particles are studied using discrete element simulations. Particles are superballs with shape that varie…
Flow-Arrest Transitions in Frictional Granular Matter
Ishan Srivastava, Leonardo E. Silbert, Gary S. Grest +1
The transition between shear-flowing and shear-arrested states of frictional granular matter is studied using constant-stress discrete element simulations. By subjecting a dilute s…
Dominant Frequency Extraction
Rastislav Telgarsky
Time series are collected and studied extensively for the knowledge about the data source characteristics such as the trend or the spectral landscape. Some peaks in the spectral la…