6 papers · 1 filter
Effect of sub-critical fluid shear flow on granular bed strength
Dong Wang, Sophie Bodek, Nicholas T. Ouellette +2
Interactions between fluids and granular materials are prevalent on the Earth's surface. In the case of fluid flow over a sediment bed, the fluid imparts a shear stress to the gran…
Cell Shape Emerges from Motion
Gautham Gopinath, Emmanuel Y. Mintah, Aashrith Saraswathibhatla +6
We perform cell segmentation on images from experimental studies of confluent, mobile cells in epithelial monolayers and show that these systems possess a broad, positively-skewed…
Particle-scale origin of quadrupolar non-affine displacement fields in granular solids
Evan P. Willmarth, Weiwei Jin, Dong Wang +4
In this work, we identify the local structural defects that control the non-affine displacement fields in jammed disk packings subjected to athermal, quasistatic (AQS) simple shear…
Evolution of Adaptive Force Chains in Reconfigurable Granular Metamaterials
Sven Witthaus, Atoosa Parsa, Dong Wang +7
Under an externally applied load, granular packings form force chains that depend on the contact network and moduli of the grains. In this work, we investigate packings of variable…
Tuning the Size and Stiffness of Inflatable Particles
Nidhi Pashine, Dong Wang, Robert Baines +4
We describe size-varying cylindrical particles made from silicone elastomers that can serve as building blocks for robotic granular materials. The particle size variation, which is…
Protein folding as a jamming transition
Alex T. Grigas, Zhuoyi Liu, Jack A. Logan +2
Proteins fold to a specific functional conformation with a densely packed hydrophobic core that controls their stability. We develop a geometric, yet all-atom model for proteins th…