Kavli Affiliate: L. Mahadevan | First 5 Authors: Gaurav Chaudhary, Lauren Niu, Marta Lewicka, Qing Han, L Mahadevan | Summary: The presence of cuts in a thin planar sheet can dramatically alter its mechanical and geometrical response to loading, as the cuts allow the sheet to deform strongly in the third dimension. We use numerical […]
Kavli Affiliate: L. Mahadevan | First 5 Authors: Ee Hou Yong, Farisan Dary, Luca Giomi, L. Mahadevan, | Summary: 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 properties in athermal macroscopic settings, e.g. it can bend without […]
Kavli Affiliate: L. Mahadevan | First 5 Authors: Suraj Shankar, Vidya Raju, L. Mahadevan, , | Summary: Understanding the complex patterns in space-time exhibited by active systems has been the subject of much interest in recent times. Complementing this forward problem is the inverse problem of controlling active matter. Here we use optimal control theory […]
Kavli Affiliate: Kevin Parker | First 5 Authors: Henry M. Clever, Ankur Handa, Hammad Mazhar, Kevin Parker, Omer Shapira | Summary: Sharing autonomy between robots and human operators could facilitate data collection of robotic task demonstrations to continuously improve learned models. Yet, the means to communicate intent and reason about the future are disparate between […]
Kavli Affiliate: Katia Bertoldi | First 5 Authors: Antonio Elia Forte, David Melancon, Leon M. Kamp, Benjamin Gorissen, Katia Bertoldi | Summary: Recently, inflatable elements integrated in robotics systems have enabled complex motions as a result of simple inputs. However, these fluidic actuators typically exhibit unimodal deformation upon inflation. Here, we present a new design […]
Kavli Affiliate: David A. Weitz | First 5 Authors: Huifeng Du, Emmanuel Virot, Liying Wang, Sam Kharchenko, Md Arifur Rahman | Summary: Elastomeric materials when sliding on clean and rough surfaces generate wrinkles at the interface due to tangential stress gradients. These interfacial folds travel along the bottom of elastomer as surface detachment waves to […]
Kavli Affiliate: Shmuel M. Rubinstein | First 5 Authors: Shruti Mishra, Shmuel M. Rubinstein, Chris H. Rycroft, , | Summary: The impact of a liquid drop on a solid surface involves many intertwined physical effects, and is influenced by drop velocity, surface tension, ambient pressure and liquid viscosity, among others. Experiments by Kolinski et al. […]
Kavli Affiliate: Ariel Amir | First 5 Authors: Luyi Qiu, John W. Hutchinson, Ariel Amir, , | Summary: A thin-walled tube, e.g., a drinking straw, manifests an instability when bent by localizing the curvature change in a small region. This instability has been extensively studied since the seminal work of Brazier nearly a century ago. […]
Kavli Affiliate: Daniel J. Needleman | First 5 Authors: Bezia Lemma, Noah P. Mitchell, Radhika Subramanian, Daniel J. Needleman, Zvonimir Dogic | Summary: Mixtures of microtubules and molecular motors form active materials with diverse dynamical behaviors that vary based on their constituents’ molecular properties. We map the non-equilibrium phase diagram of microtubules and tip-accumulating kinesin-4 […]
Kavli Affiliate: Michael P. Brenner | First 5 Authors: Katy Blumer, Subhashini Venugopalan, Michael P. Brenner, Jon Kleinberg, | Summary: We analyze a dataset of retinal images using linear probes: linear regression models trained on some "target" task, using embeddings from a deep convolutional (CNN) model trained on some "source" task as input. We use […]