Research interests revolve around the modeling and simulation of complex wave phenomena in unconventional structures and materials, with emphasis on cellular solids, phononic crystals and acoustic metamaterials. Current efforts are directed towards the investigation of wave motion in nonlinear periodic solids, such as granular crystals, with the objective of designing strategies for tunable filtering and wave steering. In parallel, new theoretical and experimental techniques for material diagnostics and structural health monitoring are developed through the structural mechanics adaptation of selected ideas originated in the fields of machine learning and computer vision.
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Zunker W., Gonella S. 2021. Soft topological lattice wheels, Extreme Mechanics Letters, 46, [101344]. doi: 10.1016/j.eml.2021.101344
Gonella S. 2020. Symmetry of the phononic landscape of twisted kagome lattices across the duality boundary, Physical Review B. 102(14), [140301]. doi: 10.1103/PhysRevB.102.140301
Jiao W., Gonella S. 2020. Dynamics of interacting particle systems: Modeling implications of the repulsive interactions and experiments on magnetic prototypes, Physical Review B. 102(5), [054304]. doi: 10.1103/PhysRevB.102.054304
Ma J., Sun K., Gonella S. 2019. Valley Hall in-plane edge states as building blocks for elastodynamic logic circuits, Physical Review Applied, 12, [044015]. doi: 10.1103/PhysRevApplied.12.044015
Celli P., Yousefzadeh B., Daraio C., Gonella S. 2019. Bandgap widening by disorder in rainbow metamaterials, Applied Physics Letters, 114, [091903]. doi: 10.1063/1.5081916
Ma, J., Zhou D., Sun K., Mao X., Gonella S. 2018. Edge modes and asymmetric wave transport in topological lattices: Experimental characterization at finite frequencies, Physical Review Letters, 121, [094301]. doi: 10.1103/PhysRevLett.121.094301
Jiao W., Gonella S. 2018. Mechanics of inter-modal tunneling in nonlinear waveguides, Journal of the Mechanics and Physics of Solids, 111, 1-17. doi: 10.1016/j.jmps.2017.10.008
Celli P., Gonella S., Tajeddini V., Muliana A., Ahmed S., Ounaies Z. 2017. Wave control through soft microstructural curling: bandgap shifting, reconfigurable anisotropy and switchable chirality, Smart Materials and Structures, 26, [035001]. doi: 10.1088/1361-665X/aa59ea
Celli, P., Gonella S. 2015. Manipulating waves with Lego® bricks. A versatile experimental platform for metamaterial architectures, Applied Physics Letters, 107(8), [081901]. doi: 10.1063/1.4929566
Druce J.M., Haupt J.D., Gonella S. 2015. Anomaly-sensitive dictionary learning for unsupervised diagnostics of solid media, IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, 62(7), 1384-1396. doi: 10.1109/TUFFC.2015.007048
Ganesh R., Gonella S. 2015. From modal mixing to tunable functional switches in nonlinear phononic crystals, Physical Review Letters, 114(5), [054302]. doi: 10.1103/PhysRevLett.114.054302