59 citations · 236 across the 11 of their papers we have counts for
11 papers · 1 filter
Avoiding localization instabilities in rotary pleating
Tian Yu, J. A. Hanna
Rotary pleating is a widely used process for making filters out of nonwoven fabric sheets. This involves indirect elastic-plastic bending of pre-weakened creases by continuously in…
Continuous modeling of creased annuli with tunable bistable and looping behaviors
Tian Yu, Francesco Marmo, Pasquale Cesarano +1
Creases are purposely introduced to thin structures for designing deployable origami, artistic geometries, and functional structures with tunable nonlinear mechanics. Modeling the…
Wetting dynamics in an angular channel
Chen Zhao, Tian Yu, Jiajia Zhou +1
We analyze the dynamics of liquid filling in a thin, slightly inflated rectangular channel driven by capillary forces. We show that although the amount of liquid in the channel…
Bistability and equilibria of creased annular sheets and strips
Tian Yu
A creased thin disk is generally bistable since the crease could be pushed through to form a stable cone-like inverted state with an elastic singularity corresponding to the vertex…
Wetting equilibrium in a rectangular channel
Tian Yu, Qicheng Sun, Chen Zhao +2
When a capillary channel with corners is wetted by a fluid, there are regions where the fluid fills the whole cross-section and regions where only the corners are filled by the flu…
Numerical modeling of static equilibria and bifurcations in bigons and bigon rings
Tian Yu, Lauren Dreier, Francesco Marmo +3
In this study, we explore the mechanics of a bigon and a bigon ring from a combination of experiments and numerical simulations. A bigon is a simple elastic network consisting of t…
Cutting holes in bistable folds
T. Yu, I. Andrade-Silva, M. A. Dias +1
A folded disk is bistable, as it can be popped through to an inverted state with elastic energy localized in a small, highly-deformed region on the fold. Cutting out this singulari…
Exact and approximate mechanisms for pure bending of sheets
Tian Yu, J. A. Hanna
Direct measurement of the moment-curvature response of sheets or wires up to high curvatures can aid in modeling creasing, pleating, and other forming operations. We consider theor…
Capillary imbibition in a square tube
Tian Yu, Jiajia Zhou, Masao Doi
When a square tube is brought in contact with bulk liquid, the liquid wets the corners of the tube, and creates finger-like wetted region. The wetting of the liquid then takes plac…
Overcurvature induced multistability of linked conical frusta: How a `bendy straw' holds its shape
Nakul P. Bende, Tian Yu, Nicholas A. Corbin +4
We study the origins of multiple mechanically stable states exhibited by an elastic shell comprising multiple conical frusta, a geometry common to reconfigurable corrugated structu…
Bifurcations of buckled, clamped anisotropic rods and thin bands under lateral end translations
Tian Yu, J. A. Hanna
Motivated by observations of snap-through phenomena in buckled elastic strips subject to clamping and lateral end translations, we experimentally explore the multi-stability and bi…