168 citations · 263 across the 6 of their papers we have counts for
6 papers
Coarse-Grained Modeling of a Deformable Nematic Vesicle
Jun Geng, Jonathan V. Selinger, Robin L. B. Selinger
We develop a coarse-grained particle-based model to simulate membranes with nematic liquid-crystal order. The coarse-grained particles form vesicles which, at low temperature, have…
Deformation of an asymmetric thin film
Jun Geng, Jonathan V. Selinger
Experiments have investigated shape changes of polymer films induced by asymmetric swelling by a chemical vapor. Inspired by recent work on the shaping of elastic sheets by non-Euc…
Theory and simulation of two-dimensional nematic and tetratic phases
Jun Geng, Jonathan V. Selinger
Recent experiments and simulations have shown that two-dimensional systems can form tetratic phases with four-fold rotational symmetry, even if they are composed of particles with…
Slow Drag in 2D Granular Media
Junfei Geng, R. P. Behringer
We study the drag force experienced by an object slowly moving at constant velocity through a 2D granular material consisting of bidisperse disks. The drag force is dominated by fo…
Green's Function Measurements of Force Transmission in 2D Granular Materials
Junfei Geng, G. Reydellet, E. Clement +1
We describe experiments that probe the response to a point force of 2D granular systems under a variety of conditions. Using photoelastic particles to determine forces at the grain…
Memory in 2D heap experiments
Junfei Geng, Emily Longhi, R. P. Behringer +1
The measurement of force distributions in sandpiles provides a useful way to test concepts and models of the way forces propagate within noncohesive granular materials. Recent theo…