4 papers · 1 filter
Characterizing particle rearrangements in sheared highly polydisperse materials
Waad Paliwal, Eric R. Weeks
We compare three particle-scale measures of rearrangement in highly polydisperse materials under driven flow: (a) nonaffine motion defined relative to the time-averaged mean flow,…
Nonaffine motion in flowing highly polydisperse granular media
Pablo Eduardo Illing, Eric R. Weeks
We study the particle-scale motion of highly polydisperse hard disks flowing in a two-dimensional bent channel. We use various size distributions of particles, in which the largest…
Aging of colloidal gels in microgravity
Swagata S. Datta, Waad Paliwal, Eric R. Weeks
We study the aging of colloidal gels using light microscopy movies of depletion gels from the International Space Station. Under such microgravity conditions, we observe a slowdown…
Microstructure of polydisperse colloidal gels
Benjamin F. Lonial, Eric R. Weeks
We use confocal microscopy to image colloidal gels formed from highly polydisperse particles. We suspend our polydisperse particles in a density matched solvent, and let the partic…