Locally resonant metamaterials with shape-memory alloy springs

Vagner Candido De Sousa, Christopher Sugino, Carlos De Marqui, Alper Erturk

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Scopus citations

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.

Original languageEnglish
Title of host publicationActive and Passive Smart Structures and Integrated Systems XII
EditorsJae-Hung Han, Alper Erturk
ISBN (Electronic)9781510616868
DOIs
StatePublished - 2018
EventActive and Passive Smart Structures and Integrated Systems XII 2018 - Denver, United States
Duration: 5 Mar 20188 Mar 2018

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume10595
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

ConferenceActive and Passive Smart Structures and Integrated Systems XII 2018
Country/TerritoryUnited States
CityDenver
Period5/03/188/03/18

Keywords

  • Adaptive metamaterial
  • shape-memory alloy
  • tunable bandgap
  • vibration

Fingerprint

Dive into the research topics of 'Locally resonant metamaterials with shape-memory alloy springs'. Together they form a unique fingerprint.

Cite this