119 citations · 301 across the 11 of their papers we have counts for
12 papers
Beyond mechanochromism: Programmable multimodal actuation in cholesteric liquid crystal elastomer hollow fibers
Jiazhe Ma, John S. Biggins, Fan Feng +1
Cholesteric liquid crystal elastomers (CLCEs) change color under strain, offering attractive prospects for smart textiles, soft robotics, and photonic devices. However, the helical…
Programming evolution of geometry in shape-morphing sheets via spatiotemporal activation
Daniel Duffy, Itay Griniasty, John Biggins +1
Shape-programmed sheets morph from one surface into another upon activation by stimuli such as illumination, and have attracted much interest for their potential engineering applic…
Geometry, mechanics and actuation of intrinsically curved folds
Fan Feng, Klaudia Dradrach, Michał Zmyślony +2
We combine theory and experiments to explore the kinematics and actuation of intrinsically curved folds (ICFs) in otherwise developable shells. Unlike origami folds, ICFs are not b…
Lifting, Loading, and Buckling in Conical Shells
Daniel Duffy, Joselle M. McCracken, Tayler S. Hebner +2
Liquid crystal elastomer films that morph into cones are strikingly capable lifters. Thus motivated, we combine theory, numerics, and experiments to reexamine the load-bearing capa…
Surface instability in a nematic elastomer
Morgan Barnes, Fan Feng, John S. Biggins
Liquid crystal elastomers (LCEs) are soft phase-changing solids that exhibit large reversible contractions upon heating, Goldstone-like soft modes and resultant microstructural ins…
Curvature-driven instabilities in thin active shells
Andrea Giudici, John S. Biggins
Spontaneous material shape changes, such as swelling, growth or thermal expansion, can be used to trigger dramatic elastic instabilities in thin shells. These instabilities origina…
Interfacial metric mechanics: stitching patterns of shape change in active sheets
Fan Feng, Daniel Duffy, Mark Warner +1
A flat sheet programmed with a planar pattern of spontaneous shape change will morph into a curved surface. Such metric mechanics is seen in growing biological sheets, and may be e…
Shape programming lines of concentrated Gaussian curvature
D. Duffy, L. Cmok, J. S. Biggins +7
Liquid crystal elastomers (LCEs) can undergo large reversible contractions along their nematic director upon heating or illumination. A spatially patterned director within a flat L…
Fluid driven fingering instability of a confined elastic meniscus
J. S. Biggins, Z. Wei, L. Mahadevan
When a fluid is pumped into a cavity in a confined elastic layer, at a critical pressure, destabilizing fingers of fluid invade the elastic solid along its meniscus (Saintyves, Dau…
Exactly isochoric deformations of soft solids
J. S. Biggins, Z. Wei, L. Mahadevan
Many materials of contemporary interest, such as gels, biological tissues and elastomers, are easily deformed but essentially incompressible. Traditional linear theory of elasticit…
Surface sulci in squeezed soft solids
Tuomas Tallinen, John S. Biggins, L. Mahadevan
The squeezing of soft solids, the constrained growth of biological tissues, and the swelling of soft elastic solids such as gels can generate large compressive stresses at their su…
Elasticity of Polydomain Liquid Crystal Elastomers
J. S. Biggins, M. Warner, K. Bhattacharya
We model polydomain liquid-crystal elastomers by extending the neo-classical soft and semi-soft free energies used successfully to describe monodomain samples. We show that there i…