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Vibration and Wave Propagation Characteristic Analysis of Periodic Auxetic Star-Shaped Structure System

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Abstract:

In this paper, vibration and wave propagation characteristics of auxetic metamaterial of the star-shaped structure system are studied. The plane wave expansion method is adopted to investigate and calculate the band structures of the auxetic star-shaped structure system. Besides, the frequency ranges of the complete bandgaps are also obtained and discussed. Then, the COMSOL® finite element software is utilized to solve wave propagation characteristics within the periodic auxetic star-shaped honeycomb structures. After that, the auxetic star-shaped structure devices made by 3D printed machine are used to measure the experimental results and also compared with numerical results. It can be seen that good agreements can be found in the discussions.

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Info:

Periodical:

Materials Science Forum (Volume 1009)

Pages:

101-106

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.1009.101

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Online since:

August 2020

Authors:

Jia Yi Yeh*

Keywords:

Auxetic, Negative Poisson’s Ratio, Plane Wave Expansion Method, Star-Shaped Structures

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© 2020 Trans Tech Publications Ltd. All Rights Reserved

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