Properties and tunability of band gaps in innovative reentrant and star-shaped hybrid honeycomb metamaterials

Yajun Xin; Han Wang; Cong Wang; Shuliang Cheng; Qingxin Zhao; Yongtao Sun; Haoqiang Gao; Fuguang Ren

Results in Physics (May 2021)

Properties and tunability of band gaps in innovative reentrant and star-shaped hybrid honeycomb metamaterials

Yajun Xin,
Han Wang,
Cong Wang,
Shuliang Cheng,
Qingxin Zhao,
Yongtao Sun,
Haoqiang Gao,
Fuguang Ren

Affiliations

Yajun Xin: State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao, China; Key Laboratory of Green Construction and Intelligent Maintenance for Civil Engineering of Hebei Province, Yanshan University, Qinhuangdao, China
Han Wang: Key Laboratory of Green Construction and Intelligent Maintenance for Civil Engineering of Hebei Province, Yanshan University, Qinhuangdao, China
Cong Wang: Key Laboratory of Green Construction and Intelligent Maintenance for Civil Engineering of Hebei Province, Yanshan University, Qinhuangdao, China
Shuliang Cheng: Key Laboratory of Green Construction and Intelligent Maintenance for Civil Engineering of Hebei Province, Yanshan University, Qinhuangdao, China
Qingxin Zhao: State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao, China; Hebei Province Low-Carbon and Clean Building Heating Technology Innovation Center, Yanshan University, Qinhuangdao, China
Yongtao Sun: Department of Mechanics and Tianjin Key Laboratory of Nonlinear Dynamics and Control, Tianjin University, Tianjin, China; State Key Laboratory of Mechanical Behavior and System Safety of Traffic Engineering Structures, Shijiazhuang Tiedao University, Shijiazhuang 050043, China; Corresponding authors at: Department of Mechanics and Tianjin Key Laboratory of Nonlinear Dynamics and Control, Tianjin University, Tianjin, China.
Haoqiang Gao: Department of Mechanics and Tianjin Key Laboratory of Nonlinear Dynamics and Control, Tianjin University, Tianjin, China; Corresponding authors at: Department of Mechanics and Tianjin Key Laboratory of Nonlinear Dynamics and Control, Tianjin University, Tianjin, China.
Fuguang Ren: School of Mechanical Engineering, Hebei University of Technology, Tianjin 300401, China

Journal volume & issue: Vol. 24
p. 104024

Abstract

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In this paper, a new kind of acoustic metamaterials, the reentrant and star-shaped hybrid honeycomb metamaterials (RSHHM) were proposed, in which the elastic rubber coated mass inclusions were added to create the low-frequency band gaps. Formation mechanisms for the band gaps and effects of the geometrical parameters and the number of filled mass inclusions on band gaps of the RSHHM were systematically studied by combining the FE method and the Bloch’s theorem. Meanwhile, transmissions of the finite-sized sandwich panels with the core of RSHHM were calculated to verify the vibration attenuation performances of the RSHHM. In addition, tunability of band gaps of the RSHHM was explored by exerting large deformations on the RSHHM endowed them with almost incompressible hyperelastic constituent materials. Numerical results showed, by rationally choosing the geometrical parameters, mass inclusions and the constituent materials, the RSHHM proposed in this paper could have tunable high and low frequency plane wave attenuation characteristics. The research of this paper provides a new strategy for the design of acoustic structures and devices with dynamic tunable band gaps properties.

Published in Results in Physics

ISSN: 2211-3797 (Online)
Publisher: Elsevier
Country of publisher: Netherlands
LCC subjects: Science: Physics
Website: http://www.journals.elsevier.com/results-in-physics/

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