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SUMMARY:Keynote lecture: Packing of Non-spherical and Deformable Particles
  - Mark Shattuck (City College of New York)
DTSTART:20230824T150000Z
DTEND:20230824T160000Z
UID:TALK202654@talks.cam.ac.uk
DESCRIPTION:We have recently developed a new method for simulating deforma
 ble particles like cells\, emulsions\, foams\, and elastoplastic particles
 .&nbsp\; It is a general framework that allows for many aspects of hybrid 
 FEM/DEM simulations but with significant simplifications and speedup.&nbsp
 \; It also extends earlier models like surface evolver\, vertex models\, a
 nd voronoi based models to allow for more shape degrees of freedom and app
 lies to systems with a wide range of densities from single particles to co
 nfluent cell packings. We use this new model to study mechanically stable 
 packings of deformable and rigid particles. We present the densities and a
 verage contact numbers for collections of jammed mono- and bi-disperse pac
 kings of circulo-polygons for a range of shape factors\, edge numbers\, an
 d system sizes. For rigid particles\, we find mechanically stable packings
  with fewer than isostatic contacts.&nbsp\; For deformable polygons\, we i
 dentify a new phase transition between non-confluent and confluent systems
  that occurs when the particle shape factor is comparable to the average s
 hape factor for Voronoi polygons of disk packings.
LOCATION:External
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