Results 81 to 90 of about 20,399 (241)

Combinatorial design of textured mechanical metamaterials [PDF]

Nature, 2016
Main text: 5 p, 3 figs.
Coulais, C.J., Teomy, E., Reus, K. de, Shokef, Y., Hecke, M.L. van   +4 more
openaire   +4 more sources

Scalable Thermal Engineering via Femtosecond Laser‐Direct‐Written Phononic Nanostructures

Advanced Functional Materials, EarlyView.
This study demonstrates that femtosecond laser‐induced periodic surface structures (fs‐LIPSS) can function as phononic metasurfaces, reducing thermal conductivity below the plain thin‐film limit. Phonon Monte Carlo analysis reveals that the periodic structures restrict phonon mean free paths.
Hiroki Hamma, Roman Anufriev, Kazuyoshi Fushinobu, Masahiro Nomura, Byunggi Kim   +4 more
wiley   +1 more source

Optical forces in nanowire pairs and metamaterials

, 2010
We study the optical force arising when isolated gold nanowire pairs and metamaterials with a gold nanowire pair in the unit cell are illuminated with laser radiation.
Chu, Chu, Cohen-Tannoudji, Costas M. Soukoulis, Dolling, Garcia-Garcia, Gay-Balmaz, Hallock, Halterman, Johnson, Katsarakis, Kippenberg, Koschny, Li, Liu, N’Gom, Papasimakis, Park, Penciu, Pendry, Philippe Tassin, Phillips, Povinelli, Rockstuhl, Rongkuo Zhao, Shalaev, Shelby, Smith, Tassin, Tassin, Thomas Koschny, Van Thourhout, Veselago, Wiederhecker, Zhang, Zhou   +35 more
core   +1 more source

Mechanical metamaterials with negative compressibility transitions [PDF]

Nature Materials, 2012
When tensioned, ordinary materials expand along the direction of the applied force. Here, we explore network concepts to design metamaterials exhibiting negative compressibility transitions, during which a material undergoes contraction when tensioned (or expansion when pressured).
Nicolaou, Zachary G., Motter, Adilson E.
openaire   +3 more sources

Meta‐Rod Mechanical Metamaterials With Programmable Reconfiguration

Advanced Functional Materials, EarlyView.
Existing mechanical metamaterials achieve programmable large deformations in planar square or cubic configurations, restricted by required complex boundary conditions. This research proposes a 1D metamaterial, Meta‐rod, with linear, bending, twisting, area, and volume deformation modes.
Atharva Pande, Lyes Kadem, Hang Xu
wiley   +1 more source

Acoustic blackbody through instability-induced softening

Communications Physics
Perfect wave absorption across all wavelengths is forbidden by the causality principle. Here we demonstrate an approach that circumvents this fundamental limitation in acoustics by coupling unstable components to achieve zero static modulus.
Min Yang, Sichao Qu, Nicholas Fang, Shuyu Chen   +3 more
doaj   +1 more source

Quasi‐Static to Supersonic Energy Absorption of Nanoarchitected Tubulanes and Schwarzites

Advanced Functional Materials, EarlyView.
Nanoarchitected energy‐absorptive Tubulanes exhibit record energy absorption under quasi‐static conditions and exceptional inelastic energy dissipation under 750 m s−1 ballistics impact, with high performance spanning strain rates of 12 orders of magnitude.
Peter Serles, Alianna Maguire, Thomas Butruille, Jet Lem, Shuo Yang, Pedro Guerra Demingos, Sahar Choukir, Michel Haché, Boran Kumral, Katherine Jia, Charles Jia, Yu Zou, Chandra Veer Singh, Carlos M. Portela, Jun Lou, Pulickel M. Ajayan, Tobin Filleter   +16 more
wiley   +1 more source

Synchrotron X-ray micro-computed tomography imaging of 3D re-entrant micro lattice during in situ micro compression experimental process

Materials & Design, 2020
3D re-entrant mechanical metamaterials were designed and fabricated with PμLSE (Projection Micro Litho Stereo Exposure) 3D printing technique, synchrotron X-Ray tomography 3D imaging and in situ mechanical experiments were performed for characterizing ...
Wenwang Wu, Dexing Qi, Wenxia Hu, Li Xi, Lijuan Sun, Binbin Liao, Filippo Berto, Guian Qian, Dengbao Xiao   +8 more
doaj   +1 more source

Novel Functional Materials via 3D Printing by Vat Photopolymerization

Advanced Functional Materials, EarlyView.
This Perspective systematically analyzes strategies for incorporating functionalities into 3D‐printed materials via Vat Photopolymerization (VP). It explores the spectrum of achievable functionalities in recently reported novel materials—such as conductive, energy‐storing, biodegradable, stimuli‐responsive, self‐healing, shape‐memory, biomaterials, and
Sergey S. Nechausov, Patrick Fesser, Boris A. Bulgakov, Ulrich S. Schubert   +3 more
wiley   +1 more source

Programmable Metamaterials with Perforated Shell Group Supporting Versatile Information Processing

Advanced Science
Mechanical metamaterials have emerged as promising tools for enabling mechanical intelligence in soft machines through interaction with the external environment.
Xiaoyuan Ma, Ziran Wang, Weipeng Zhang, Peng Yan   +3 more
doaj   +1 more source