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A mechanical power dissipation model for axially loaded metamaterial bars

  • SUNY Buffalo

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

1 Scopus citations

Abstract

Elastic metamaterials are sub-wavelength structures with locally resonant components that contribute to the rise of tunable stop bands, i.e. frequency ranges within which waves do not propagate. A new approach is presented here to quantify this stop band behavior by evaluating structural vibrational power in the different constituents of locally resonant metamaterials undergoing axial excitations. It is shown that the power flow patterns match wave propagation information extracted from the dispersion analysis of the metamaterial unit cell, and can thus be used to develop an algorithm that numerically predicts stop band frequencies for finite realizations with given dimensions and a known number of cells.

Original languageEnglish
Title of host publicationHealth Monitoring of Structural and Biological Systems 2017
EditorsTribikram Kundu
PublisherSPIE
ISBN (Electronic)9781510608252
DOIs
StatePublished - 2017
EventHealth Monitoring of Structural and Biological Systems 2017 - Portland, United States
Duration: Mar 26 2017Mar 29 2017

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume10170
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

ConferenceHealth Monitoring of Structural and Biological Systems 2017
Country/TerritoryUnited States
CityPortland
Period03/26/1703/29/17

Keywords

  • Elastic metamaterials
  • Stop bands
  • Vibrational power

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