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Showing 1–20 of 20 results
Advanced filters: Author: Katia Bertoldi Clear advanced filters

  • A robust and scale-independent strategy for the design of reconfigurable architected materials (in which properties are adjusted by altering structure rather than composition) is described, based on space-filling assemblies of polyhedra.

    • Johannes T. B. Overvelde
    • James C. Weaver
    • Katia Bertoldi
    Research
    Nature
    Volume: 541, P: 347-352

  • Computational analysis and mechanical testing demonstrate that the skeletal system of a marine sponge has, through the course of evolution, achieved a near-optimal resistance to buckling.

    • Matheus C. Fernandes
    • Joanna Aizenberg
    • Katia Bertoldi
    Research
    Nature Materials
    Volume: 20, P: 237-241

  • This work presents a mechanical metamaterial with 1D array of bistable arches where nonreciprocity and reversibility can be independently programmed. The effects of asymmetry both at the structural and element level on propagation of transition waves are examined.

    • Gabriele Librandi
    • Eleonora Tubaldi
    • Katia Bertoldi
    ResearchOpen Access
    Nature Communications
    Volume: 12, P: 1-9

  • A framework is presented to automate the design of flexible metamaterial structures that can execute desired nonlinear dynamic tasks and have reprogrammable functionality.

    • Giovanni Bordiga
    • Eder Medina
    • Katia Bertoldi
    Research
    Nature Materials
    Volume: 23, P: 1486-1494

  • Buckling kirigami structures applied to footwear outsoles generate higher friction forces transversally to the direction of movement.

    • Sahab Babaee
    • Simo Pajovic
    • Giovanni Traverso
    Research
    Nature Biomedical Engineering
    Volume: 4, P: 778-786

  • A metafluid with programmable compressibility, optical behaviour and viscosity is realized by mixing deformable spherical shells that undergo buckling within an incompressible fluid; the versatility of these metafluids opens up numerous opportunities for functionality.

    • Adel Djellouli
    • Bert Van Raemdonck
    • Katia Bertoldi
    Research
    Nature
    Volume: 628, P: 545-550

  • Typically, most structures and devices that can be reconfigured are designed with application specific requirements. Inspired by modular origami ideas, Overveldeet al. present a mechanical metamaterial enabling the design of three-dimensional structures of arbitrary architecture with tunable shape, volume and stiffness.

    • Johannes T.B. Overvelde
    • Twan A. de Jong
    • Katia Bertoldi
    ResearchOpen Access
    Nature Communications
    Volume: 7, P: 1-8

  • Origami-inspired multistable structures that can be inflated from flat to three dimensions have been designed; a library of foldable shapes is created and then combined to build metre-scale functional structures.

    • David Melancon
    • Benjamin Gorissen
    • Katia Bertoldi
    Research
    Nature
    Volume: 592, P: 545-550

  • Curved elastic shells have unique mechanical behavior and multiple stable configurations, but these properties fade when the shell thickness increases. Here the authors report a strategy to realize bistable doubly curved shells with arbitrary thickness, and how to optimize the dynamic response of one-dimensional connected arrays of such doubly-curved bistable shells.

    • Nikolaos Vasios
    • Bolei Deng
    • Katia Bertoldi
    ResearchOpen Access
    Nature Communications
    Volume: 12, P: 1-9

  • Here, the authors experimentally observed, numerically simulate, and mathematically analyze the existence of amplitude gaps for elastic vector solitons in highly deformable mechanical metamaterials consisting of rigid units and elastic hinges.

    • Bolei Deng
    • Pai Wang
    • Katia Bertoldi
    ResearchOpen Access
    Nature Communications
    Volume: 9, P: 1-8

  • Mechanical metamaterials exhibit exotic properties that cannot be realized in conventional materials. In this Review, recently developed shape-morphing, topological and nonlinear metamaterials are discussed together with their functionalities and design principles, and future challenges for the field are outlined.

    • Katia Bertoldi
    • Vincenzo Vitelli
    • Martin van Hecke
    Reviews
    Nature Reviews Materials
    Volume: 2, P: 1-11

  • Micropillars made of liquid crystal elastomers and exposed to light exhibit diverse stroke-like motions, leading to complex dynamic pattern evolution and collective communication  in arrays.

    • Shucong Li
    • Michael M. Lerch
    • Joanna Aizenberg
    Research
    Nature
    Volume: 605, P: 76-83

  • A two-tiered dynamic design strategy achieves topological transformations of two-dimensional polymeric cellular microstructures in a reversible and temporally controllable manner through exposure to different liquids.

    • Shucong Li
    • Bolei Deng
    • Joanna Aizenberg
    Research
    Nature
    Volume: 592, P: 386-391

  • Soft actuators are typically confined to a single, predetermined deformation trajectory. Here, the authors report on a bioinspired self-adhesive material which can be attached, detached, and re-attached to expanding soft bodies to render reconfigurable and controllable deformation trajectories.

    • Sang Yup Kim
    • Robert Baines
    • Rebecca Kramer-Bottiglio
    ResearchOpen Access
    Nature Communications
    Volume: 10, P: 1-8

  • Shape-morphing metamaterials use geometric design to achieve advantageous properties, enabling innovations in fields from robotics to wearable devices. This Review proposes a unified classification of the design principles underlying shape-morphing behaviour, discusses available design tools and highlights emerging challenges in the development of shape-morphing metamaterials.

    • Krzysztof K. Dudek
    • Muamer Kadic
    • Katia Bertoldi
    Reviews
    Nature Reviews Materials
    Volume: 10, P: 783-798