activity
20092026
most citedParticle Scale Dynamics in Granular Impact

195 citations · 947 across the 25 of their papers we have counts for

collaborators

26 papers

math.OC2026

Modeling Large-Scale Adversarial Swarm Engagements using Optimal Control

Claire Walton, Isaac Kaminer, Qi Gong +2

We study optimal control of large-scale autonomous systems under adversarial conditions in which agents may be probabilistically destroyed during an engagement. Because attrition c…

cond-mat.soft2022★ 9 cited

Frictional weakening of vibrated granular flows

Abram H. Clark, H. John Nasrin, Stephanie E. Taylor +1

We computationally study the frictional properties of sheared granular media subjected to harmonic vibration applied at the boundary. Such vibrations are thought to play an importa…

math.OC2021★ 2 cited

Modeling and Control of Large-Scale Adversarial Swarm Engagements

Theodoros Tsatsanifos, Abram H. Clark, Claire Walton +2

We theoretically and numerically study the problem of optimal control of large-scale autonomous systems under explicitly adversarial conditions, including probabilistic destruction…

cond-mat.soft2021

Darcy-Reynolds forces during intrusion into granular-fluid beds

Joshua Strader, Neil Causley, Joshua A. Dijksman +1

We experimentally study intrusion into fluid-saturated granular beds by a free-falling sphere, varying particle size and fluid viscosity. We test our results against Darcy-Reynolds…

cond-mat.soft2020★ 10 cited

Viscous-like forces control the impact response of shear-thickening dense suspensions

Marc-Andre Brassard, Neil Causley, Nasser Krizou +2

We experimentally and theoretically study impacts into dense cornstarch and water suspensions. We vary impact speed as well as intruder size, shape, and mass, and we characterize t…

physics.geo-ph2020★ 175 cited

The physics of sediment transport initiation, cessation, and entrainment across aeolian and fluvial environments

Thomas Pähtz, Abram H. Clark, Manousos Valyrakis +1

Predicting the morphodynamics of sedimentary landscapes due to fluvial and aeolian flows requires answering the following questions: Is the flow strong enough to initiate sediment…