67 citations · 344 across the 13 of their papers we have counts for
13 papers
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…
Discontinuous metric programming in liquid crystalline elastomers
Tayler S. Hebner, Riley G. A. Bowman, Daniel Duffy +6
Liquid crystalline elastomers (LCEs) are shape-changing materials that exhibit large deformations in response to applied stimuli. Local control of the orientation of LCEs spatially…
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…
Defective nematogenesis: Gauss curvature in programmable shape-responsive sheets with topological defects
Daniel Duffy, John S. Biggins
Flat sheets encoded with patterns of contraction/elongation morph into curved surfaces. If the surfaces bear Gauss curvature, the resulting actuation can be strong and powerful. We…
Quasi-particle Lifetimes in a d_{x^2-y^2} Superconductor
Daniel Duffy, P. J. Hirschfeld, Douglas J. Scalapino
We consider the lifetime of quasi-particles in a d-wave superconductor due to scattering from antiferromagnetic spin-fluctuations, and explicitly separate the contribution from Umk…