Publications (33)
Interface states in two-dimensional quasicrystals with broken inversion symmetry
Danilo Beli, Matheus I. N. Rosa, Luca Lomazzi +2
We investigate the existence of interface states induced by broken inversion symmetries in two-dimensional quasicrystal lattices. We introduce a 10-fold rotationally symmetric quas…
A study of deformation localization in nonlinear elastic lattices
Raj Kumar Pal, Federico Bonetto, Luca Dieci +1
The paper investigates localized deformation patterns resulting from the onset of instabilities in lattice structures. The study is motivated by previous observations on discrete h…
A discrete model and analysis of one dimensional deformations in a structural interface with micro-rotations
Aleksey A. Vasiliev, Andrey E. Miroshnichenko, Massimo Ruzzene
The static and dynamic properties of a Cosserat-type lattice interface of finite thickness are studied, so that both displacements and rotational degrees of freedom are taken into…
Wave beaming and diffraction in quasicrystalline elastic metamaterial plates
Danilo Beli, Matheus Inguaggiato Nora Rosa, Carlos De Marqui +1
In this paper, we present numerical and experimental evidence of directional wave behavior, i.e. beaming and diffraction, along high-order rotational symmetries of quasicrystalline…
Experimental observation of non-reciprocal band-gaps in a space-time modulated beam using a shunted piezoelectric array
Jacopo Marconi, Emanuele Riva, Matteo Di Ronco +3
In this work we experimentally achieve 1 kHz-wide directional band-gaps for elastic waves spanning a frequency range from approximately 8 to 11 kHz. One-way propagation is induced…
Non-Reciprocal Wave Propagation in Spatiotemporal Periodic Structures
Giuseppe Trainiti, Massimo Ruzzene
We study longitudinal and transverse wave propagation in beams with elastic properties that are periodically varying in space and time. Spatiotemporal modulation of the elastic pro…