130 citations · 340 across the 24 of their papers we have counts for
25 papers
Lyapunov-Schmidt bifurcation analysis of a supported compressible elastic beam
Ee Hou Yong, L. Mahadevan
The archetypal instability of a structure is associated with the eponymous Euler beam, modeled as an inextensible curve which exhibits a supercritical bifurcation at a critical com…
Structural Dynamics of Contractile Injection Systems
Noah Toyonaga, L Mahadevan
The dynamics of many macromolecular machines is characterized by chemically-mediated structural changes that achieve large scale functional deployment through local rearrangements…
Statics and diffusive dynamics of surfaces driven by -atic topological defects
Farzan Vafa, L. Mahadevan
Inspired by epithelial morphogenesis, we consider a minimal model for the shaping of a surface driven by -atic topological defects. We show that a positive (negative) defect can…
Learning to write with the fluid rope trick
Gaurav Chaudhary, Stephanie Christ, A John Hart +1
The range and speed of direct ink writing, the workhorse of 3d and 4d printing, is limited by the practice of liquid extrusion from a nozzle just above the surface to prevent insta…
Localization in musical steelpans
Petur Bryde, L. Mahadevan
The steelpan is a pitched percussion instrument that takes the form of a concave bowl with several localized dimpled regions of varying curvature. Each of these localized zones, ca…
Explosive rigidity percolation in kirigami
Gary P. T. Choi, Lucy Liu, L. Mahadevan
Controlling the connectivity and rigidity of kirigami, i.e. the process of cutting paper to deploy it into an articulated system, is critical in the manifestations of kirigami in a…
Contractility-induced phase separation in active solids
Sifan Yin, L Mahadevan
A combination of cellular contractility and active phase separation in cell-matrix composites is thought to be an enabler of spatiotemporal patterning in multicellular tissues acro…
Optimal intercellular competition in senescence and cancer
Thomas C. T. Michaels, L. Mahadevan
Effective multicellularity requires both cooperation and competition between constituent cells. Cooperation involves sacrificing individual fitness in favor of that of the communit…
An additive framework for kirigami design
Levi H. Dudte, Gary P. T. Choi, Kaitlyn P. Becker +1
We present an additive approach for the inverse design of kirigami-based mechanical metamaterials by focusing on the empty (negative) spaces instead of the solid tiles. By consider…
How to grow a flat leaf
Salem al-Mosleh, L. Mahadevan
Growing a flat lamina such as a leaf is almost impossible without some feedback to stabilize long wavelength modes that are easy to trigger since they are energetically cheap. Here…
: Collective behavior mediated by active flow-based recruitment
S Ganga Prasath, L Mahadevan
The physics of signal propagation in a collection of organisms that communicate with each other both enables and limits how active excitations at the individual level reach, recrui…
Active entanglement enables stochastic, topological grasping
Kaitlyn Becker, Clark Teeple, Nicholas Charles +5
Grasping, in both biological and engineered mechanisms, can be highly sensitive to the gripper and object morphology, as well as perception, and motion planning. Here we circumvent…
Modular representation and control of floppy networks
Siheng Chen, Fabio Giardina, Gary P. T. Choi +1
Geometric graph models of systems as diverse as proteins, robots, and mechanical structures from DNA assemblies to architected materials point towards a unified way to represent an…
Statistics and Topology of Fluctuating Ribbons
Ee Hou Yong, Farisan Dary, Luca Giomi +1
Ribbons are a class of slender structures whose length, width, and thickness are widely separated from each other. This scale separation gives a ribbon unusual mechanical propertie…
Detecting Lagrangian coherent structures from sparse and noisy trajectory data
Saviz Mowlavi, Mattia Serra, Enrico Maiorino +1
Many complex flows such as those arising from ocean plastics in geophysics or moving cells in biology are characterized by sparse and noisy trajectory datasets. We introduce techni…
Geometric control of topological dynamics in a singing saw
Suraj Shankar, Petur Bryde, L. Mahadevan
The common handsaw can be converted into a bowed musical instrument capable of producing exquisitely sustained notes when its blade is appropriately bent. Acoustic modes localized…
Geometrical dynamics of edge-driven surface growth
C. Nadir Kaplan, L. Mahadevan
Accretion of mineralized thin wall-like structures via localized growth along their edges is observed in a range of physical and biological systems ranging from molluscan and brach…
Active nematic defects and epithelial morphogenesis
Farzan Vafa, L. Mahadevan
Inspired by recent experiments that highlight the role of nematic defects in the morphogenesis of epithelial tissues, we develop a minimal framework to study the dynamics of an act…
Defect-mediated dynamics of coherent structures in active nematics
Mattia Serra, Linnea Lemma, Luca Giomi +2
Active fluids, such as cytoskeletal filaments, bacterial colonies and epithelial cell layers, exhibit distinctive orientational coherence, often characterized by nematic order and…
Combing a double helix
Thomas Bolton Plumb-Reyes, Nicholas Charles, L. Mahadevan
Combing hair involves brushing away the topological tangles in a collective curl. Using a combination of experiment and computation, we study this problem that naturally links topo…
Wallpaper group kirigami
Lucy Liu, Gary P. T. Choi, L. Mahadevan
Kirigami, the art of paper cutting, has become a paradigm for mechanical metamaterials in recent years. The basic building blocks of any kirigami structures are repetitive deployab…
Control of connectivity and rigidity in prismatic assemblies
Gary P. T. Choi, Siheng Chen, L. Mahadevan
How can we manipulate the topological connectivity of a three-dimensional prismatic assembly to control the number of internal degrees of freedom and the number of connected compon…
An additive algorithm for origami design
Levi H. Dudte, Gary P. T. Choi, L. Mahadevan
Inspired by the allure of additive fabrication, we pose the problem of origami design from a new perspective: how can we grow a folded surface in three dimensions from a seed so th…
Rotation of a submerged finite cylinder moving down a soft incline
Baudouin Saintyves, Bhargav Rallabandi, Theo Jules +5
A submerged finite cylinder moving under its own weight along a soft incline lifts off and slides at a steady velocity while also spinning. Here, we experimentally quantify the ste…