2019
Jammed packings of 3D superellipsoids with tunable packing fraction, coordination number, and ordering
Yuan Y, VanderWerf K, Shattuck MD, O'Hern CS. Jammed packings of 3D superellipsoids with tunable packing fraction, coordination number, and ordering. Soft Matter 2019, 15: 9751-9761. PMID: 31742301, PMCID: PMC6902436, DOI: 10.1039/c9sm01932d.Peer-Reviewed Original ResearchParticle shape parametersDifferent particle shapesPacking fractionAspect ratio βMechanical propertiesCompression simulationsDilute configurationsNumerical studyStatic packingsParticle shapeSuperellipsoidal particlesIsostatic valueRatio βDense configurationPacking-generation protocolsShape parametersParticlesJammed packingsQuartic modesRedundant contactsConfigurationSuperellipsoidsParametersOrientational order
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