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Proceedings Article

Wave propagation and vibration analysis in two-dimensional elastic chiral metacomposite

[+] Author Affiliations
G. L. Huang, X. N. Liu

Univ. of Arkansas at Little Rock (USA)

M. Reynolds

Univ. of Arkansas at Fort Smith (USA)

Proc. SPIE 7984, Health Monitoring of Structural and Biological Systems 2011, 79841S (March 31, 2011); doi:10.1117/12.880229
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From Conference Volume 7984

  • Health Monitoring of Structural and Biological Systems 2011
  • Tribikram Kundu
  • San Diego, California, USA | March 06, 2011

abstract

In this work, a new chiral metacomposite is proposed by integrating two-dimensional periodic chiral lattice with elastic metamaterial inclusions for low-frequency wave applications. The plane harmonic wave propagation in the proposed metacomposite is investigated through the finite element technique and Bloch's theorem. From that, band diagrams, dispersion surfaces as well as phase and group velocities are obtained to illustrate wave properties of the chiral metacomposite. Effective dynamic properties of the chiral metacomposite are numerically calculated to explain lowfrequency bandgap behavior in the chiral metacomposite. Specifically, design of a metacomposite beam structure for the broadband low-frequency vibration suppression is demonstrated.

© (2011) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Citation

G. L. Huang ; X. N. Liu and M. Reynolds
"Wave propagation and vibration analysis in two-dimensional elastic chiral metacomposite", Proc. SPIE 7984, Health Monitoring of Structural and Biological Systems 2011, 79841S (March 31, 2011); doi:10.1117/12.880229; http://dx.doi.org/10.1117/12.880229


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