Results 51 to 60 of about 3,013 (212)
Simplified modelling of chiral lattice materials with local resonators [PDF]
, 2015 A simplified model of periodic chiral beam-lattices containing local resonators has been formulated to obtain a better understanding of the influence of the chirality and of the dynamic characteristics of the local resonators on the acoustic behavior ...
Bacigalupo, Andrea, Gambarotta, Luigi
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Auxetic two-dimensional lattice with Poisson's Ratio arbitrarily close to -1
, 2014 In this paper we propose a new lattice structure having macroscopic Poisson's ratio arbitrarily close to the stability limit -1. We tested experimentally the effective Poisson's ratio of the micro-structured medium; the uniaxial test has been performed ...
Brun, M., Cabras, L.
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Broadband electromagnetic cloaking with smart metamaterials. [PDF]
, 2012 The ability to render objects invisible with a cloak that fits all objects and sizes is a long-standing goal for optical devices. Invisibility devices demonstrated so far typically comprise a rigid structure wrapped around an object to which it is fitted.
Baek, S +8 more
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A class of auxetic three-dimensional lattices
, 2015 We propose a class of auxetic three-dimensional lattice structures. The elastic microstructure can be designed in order to have omni-directional Poisson's ratio arbitrarily close to the stability limit -1.
Brun, Michele, Cabras, Luigi
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A Topology Optimization Framework for the Inverse Design of Nonlinear Mechanical Metamaterials
Advanced Engineering Materials, EarlyView.This work uses topology optimization to design unit cells for mechanical metamaterials with a prescribed nonlinear stress–strain response. The framework adds contact and postbuckling modeling to synthesize microstructures for three highly nonlinear responses, including pseudoductile behavior, monostable with snap‐through buckling, and bistable ...
Charlie Aveline +2 more
wiley +1 more source
Lithography-based ceramic manufacture (LCM) of auxetic structures: present capabilities and challenges [PDF]
, 2016 Auxetic metamaterials are known for having a negative Poisson's ratio (NPR) and for displaying the unexpected properties of lateral expansion when stretched and densification when compressed.
Blas Romero, Adrián de +4 more
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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
Materials & DesignResearch on creating special structures with a negative Poisson’s ratio, known as auxetic metamaterials, is widely conducted for potential applications in flexible electronics, aerospace, biomedicine, and other fields.
Yazhou Yuan +6 more
doaj +1 more source
Journal of Materials Research and Technology, 2022 Mechanical metamaterials are generally two-dimensional periodic structures or three-dimensional cellular structures that exhibit mechanical properties beyond the ordinary.
V. Harinarayana, Y.C. Shin
doaj +1 more source
Honeycomb and auxetic paper-based metamaterials [PDF]
, 2013 Honeycomb papers are metamaterials gaining their features from their structures.
Sparavigna, Amelia Carolina
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