@inproceedings{7531010b79b84af09319130f80dbcb5e,
title = "Locally resonant metamaterials with shape-memory alloy springs",
abstract = "Locally resonant metamaterials offer bandgap formation for wavelengths much longer than the lattice size, en- abling low-frequency and wideband vibration attenuation. Acoustic/elastic metamaterials made from resonating components usually do not exhibit reconfigurable and adaptive characteristics since the bandgap frequency range (i.e. target frequency and bandwidth combination) is fixed for a given mass ratio and stiffness of the resonators. In this work, we explore locally resonant metamaterials that exploit shape-memory alloy springs in an effort to develop adaptive metamaterials that can exhibit tunable bandgap properties. An analytical model for locally res- onant metastructures (i.e. metamaterials with specific boundary conditions) is combined with a shape-memory spring model of the resonator springs to investigate and exploit the potential of temperature-induced phase transformations and stress-induced hysteretic behavior of the springs. Various case studies are presented for this new class of smart metamaterials and metastructures.",
keywords = "Adaptive metamaterial, shape-memory alloy, tunable bandgap, vibration",
author = "{De Sousa}, {Vagner Candido} and Christopher Sugino and {De Marqui}, Carlos and Alper Erturk",
note = "Publisher Copyright: {\textcopyright} 2018 SPIE.; Active and Passive Smart Structures and Integrated Systems XII 2018 ; Conference date: 05-03-2018 Through 08-03-2018",
year = "2018",
doi = "10.1117/12.2302773",
language = "English",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
editor = "Jae-Hung Han and Alper Erturk",
booktitle = "Active and Passive Smart Structures and Integrated Systems XII",
}