Zobrazeno 1 - 10
of 158
pro vyhledávání: '"Celli, Paolo"'
Kirigami metamaterial sheets and tubes, owing to their capacity to undergo large elastic deformations while developing three-dimensional surface textures, have enormous potential as skins for soft robots. Here, we propose to use kirigami skins with f
Externí odkaz:
http://arxiv.org/abs/2408.01338
Publikováno v:
International Journal of Solids and Structures 300, 112917 (2024)
In this study, we present a concept of morphing structure -- featuring an arch mounted on a compliant base -- that can be reconfigured via snap-through buckling and leverages bistability to retain its morphed shape. We show that one-dimensional array
Externí odkaz:
http://arxiv.org/abs/2403.02505
Publikováno v:
Physical Review Applied 22 (1), 014073 (2024)
Mechanical metamaterials capable of large deformations are an emerging platform for functional devices and structures across scales. Bistable designs are particularly attractive since they endow a single object with two configurations that display di
Externí odkaz:
http://arxiv.org/abs/2401.07881
Autor:
Celli, Paolo, Palermo, Antonio
Publikováno v:
Journal of Sound and Vibration 572, 118178 (2024)
In this work, we discuss the realization of mechanical devices with non-reciprocal attributes enabled by inertia-amplifying, time-modulated mechanisms. Our fundamental building-block features a mass, connected to a fixed ground through a spring and t
Externí odkaz:
http://arxiv.org/abs/2304.03777
Publikováno v:
Appl. Phys. Lett. 123, 081704 (2023)
In this letter, we provide an experimental demonstration of amplitude-dependent dispersion tuning of surface acoustic waves interacting with nonlinear resonators. Leveraging the similarity between the dispersion properties of plate edge waves and sur
Externí odkaz:
http://arxiv.org/abs/2304.01494
Publikováno v:
Proc. R. Soc. A. 479, 20220665 (2023)
Kirigami metamaterials dramatically change their shape through a coordinated motion of nearly rigid panels and flexible slits. Here, we study a model system for mechanism-based planar kirigami featuring periodic patterns of quadrilateral panels and r
Externí odkaz:
http://arxiv.org/abs/2206.00153
We propose the realization of capacitive temperature sensors based on the concept of displacement amplification. Our design features two high coefficient of thermal expansion (CTE) metallic layers separated by a low-CTE dielectric layer; conductive a
Externí odkaz:
http://arxiv.org/abs/2203.15869
Autor:
Celli, Paolo, Porfiri, Maurizio
Publikováno v:
Chaos 32, 033106 (2022)
Estimating the number of degrees of freedom of a mechanical system or an engineering structure from the time-series of a small set of sensors is a basic problem in diagnostics, which, however, is often overlooked when monitoring their health and inte
Externí odkaz:
http://arxiv.org/abs/2203.02831
Publikováno v:
Journal of Vibration and Acoustics 145, 051003 (2023)
We show that shear waves traveling towards the surface of a half-space medium can be attenuated via buried one-dimensional arrays of resonators -- here called metapiles -- arranged according to sparse patterns around a site to be isolated. Our focus
Externí odkaz:
http://arxiv.org/abs/2110.02202
Publikováno v:
Phys. Rev. Lett. 128, 208003 (2022)
Mechanical metamaterials exhibit exotic properties at the system level, that emerge from the interactions of many nearly rigid building blocks. Determining these emergent properties theoretically has remained an open challenge outside of a few select
Externí odkaz:
http://arxiv.org/abs/2108.00336