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Published September 2018 | public
Book Section - Chapter

Tunable extremely wide low-frequency band gaps in accordion-like metamaterials


To achieve wave control at broad-band ultra-low frequencies, we design "accordion-like" meta-structures by periodically alternating tensegrity prisms with solid disks. The structures are characterized by extremely wide band gaps, which can be tuned by varying the level of prestress in the constituent elements. They provide valid alternatives to other metamaterials with low-frequency performance, the functionality of which relies on a locally resonant mechanism, by overcoming an inherent limit of narrow operating frequency ranges and demonstrating the resilience to variations in geometric and material parameters.

Additional Information

© 2018 IEEE. A.A. gratefully acknowledges support from the Department of Civil Engineering, University of Salerno. F.B. is supported by "Neurofibres" grant No. 732344 and by Progetto d'Ateneo/Fondazione San Paolo "Metapp", n. CSTO160004. N.M.P. is supported by the European Commission H2020 under the Graphene Flagship Core No. 696656 (WP14 "Polymer Composites") and FET Proactive "Neurofibres" grant No. 732344.

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August 19, 2023
October 19, 2023