2017
Effects of cooling rate on particle rearrangement statistics: Rapidly cooled glasses are more ductile and less reversible
Fan M, Wang M, Zhang K, Liu Y, Schroers J, Shattuck MD, O'Hern CS. Effects of cooling rate on particle rearrangement statistics: Rapidly cooled glasses are more ductile and less reversible. Physical Review E 2017, 95: 022611. PMID: 28297989, DOI: 10.1103/physreve.95.022611.Peer-Reviewed Original ResearchParticle rearrangementMechanical responseShear cyclesParticle motionDuctile glassesEnhanced ductilityEnergy lossCumulative energy lossIrreversible particle motionPlastic flowAmorphous solidsLinear regimeApplied deformationElastic responseBinary Lennard-Jones glassCooling rateDuctilityPure shearGlassLennard-Jones glassSolidsColloidal glassesDuctileMotion
2015
Onset and cessation of motion in hydrodynamically sheared granular beds
Clark AH, Shattuck MD, Ouellette NT, O'Hern CS. Onset and cessation of motion in hydrodynamically sheared granular beds. Physical Review E 2015, 92: 042202. PMID: 26565230, DOI: 10.1103/physreve.92.042202.Peer-Reviewed Original ResearchParticle Reynolds numberGranular bedReynolds numberHigh particle Reynolds numberModerate particle Reynolds numbersFlow rateWeakest-link statisticsFluid flow rateBed motionGrain-scale mechanismsStatic bedParticle inertiaFluid viscosityShields numberInertial effectsShear flowParticle motionSediment transportHydrodynamic shear flowStatic statePacking structureTransition timeMotionDynamics simulationsBed
2012
Contact percolation transition in athermal particulate systems
Shen T, O'Hern CS, Shattuck MD. Contact percolation transition in athermal particulate systems. Physical Review E 2012, 85: 011308. PMID: 22400566, DOI: 10.1103/physreve.85.011308.Peer-Reviewed Original ResearchConceptsBidisperse particle size distributionsPercolation transitionCompression stepParticle size distributionMechanical responseSystem-spanning clusterDisplacement fieldDilute configurationsApplied stressCooperative particle motionParticle motionIsotropic compressionPercolating networkParticulate systemsElastic energyFrictionless particlesTwo-dimensional systemsUnjammed stateSize distributionDynamical matrixJammed systemsAdjacency matrixSuccessive compressionSpatial dimensionsComputer simulations