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DTSTAMP:20260404T091246Z
UID:6267e9f817b48352327057@ist.ac.at
DTSTART:20220503T100000
DTEND:20220503T110000
DESCRIPTION:Speaker: Brian Tighe\nhosted by Carl Goodrich\nAbstract: Repuls
 ive soft spheres are a widely studied computer model for grains\, pastes\,
  and emulsions\, especially in the context of the jamming transition. Howe
 ver\, laboratory models such as wet sand\, capillary suspensions\, and sur
 factant-stabilized oil droplets\, all possess some degree of interparticle
  attraction. Therefore\, understanding the role of “stickiness” in the
  soft sphere model is necessary in order to translate results from simulat
 ions to the lab.I will discuss three ways in which even a small amount of 
 stickiness dramatically alters the properties of the jammed solids\, compa
 red to their repulsive counterparts. (i) Rigidity: The jamming transition 
 is pushed to lower packing fractions\, and the size of rigid clusters grow
 s continuously\, rather than discontinuously\, as the system passes throug
 h the transition. (ii) Linear elasticity: The shear modulus vanishes much 
 more rapidly at the unjamming point\, and the bulk modulus is continuous r
 ather than discontinuous. (iii) Nonlinear elasticity: Sheared solids can p
 ush or pull against their shearing surface. Attraction flips the sign of t
 his effect – sticky solids pull inwards\, reminiscent of biopolymer netw
 orks. Join Zoom Meetinghttps://istaustria.zoom.us/j/68155839169?pwd=SmVMe
 E1iMXFOQ1F1L0NnZG43NDhHQT09 Meeting ID: 681 5583 9169Passcode: 343195
LOCATION:Heinzel Seminar Room / Office Bldg West (hybrid enabled) (I21.EG.1
 01)\, ISTA
ORGANIZER:cpetz@ist.ac.at
SUMMARY:Brian Tighe: Jamming is a sticky problem
URL:https://talks-calendar.ista.ac.at/events/3729
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