An ultrawide-zero-frequency bandgap metamaterial with negative moment of inertia and stiffness

Yang, Leiyu; Wang, Lifeng

doi:10.1088/1367-2630/abef28

Cited by 19 publications

(3 citation statements)

References 30 publications

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“…Liu et al [24] presented an I-shaped radial elastic metamaterial and found that the material can generate ultra-low-frequency wide bandgaps under quasi-static conditions. Moreover, Bae [37], Yang [38], Bera [39], and Muhammad [40] et al have investigated the influence of geometric and material parameters on bandgap properties. Gerard [41], Zhao [42], and De Ponti [43] proposed 3D metamaterial structures and proved that three-dimensional structures can also be adjusted to generate ideal bandgaps, and their findings are helpful when considering the vibration suppression of metamaterials in low-frequency bands.…”

Section: Introductionmentioning

confidence: 99%

Co-Design of Mechanical and Vibration Properties of a Star Polygon-Coupled Honeycomb Metamaterial

Yong,

Li,

et al. 2024

Applied Sciences

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Based on the concept of component assembly, a novel star polygon-coupled honeycomb metamaterial, which achieves a collaborative improvement in load-bearing capacity and vibration suppression performance, is proposed based on a common polygonal structure. The compression simulation and experiment results show that the load-bearing capacity of the proposed metamaterial is three times more than that of the initial metamaterial. Additionally, metal pins are attached and particle damping is applied to the metamaterial to regulate its bandgap properties; the influence of configuration parameters, including the size, number, position, and material of the metal pins, on bandgaps is also investigated. The results show that the bandgap of the proposed metamaterial can be conveniently and effectively regulated by adjusting the parameters and can effectively suppress vibrations in the corresponding frequency band. Particle damping can be used to continuously adjust the frequency of the bandgap and further enhance the vibration suppression capacity of the metamaterial in other frequency bands. This paper provides a reference for the design and optimization of metamaterials.

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Section: Introductionmentioning

confidence: 99%

Co-Design of Mechanical and Vibration Properties of a Star Polygon-Coupled Honeycomb Metamaterial

Yong,

Li,

et al. 2024

Applied Sciences

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“…Yang and Wang. [ 36 ] proposed a new 1D metamaterial model with both a negative effective moment of inertia and negative effective stiffness. Lin et al [ 37 ] proposed metamaterial which exhibits a quasi‐static bandgap and negative effective stiffness.…”

Section: Introductionmentioning

confidence: 99%

Multiple Re‐Entrant Star‐Shaped Honeycomb with Double Negative Parameters and Bandgap Properties

Liu

Ren

Liu

et al. 2022

Physica Status Solidi (b)

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Achieving bandgaps and double negative properties with single‐phase metamaterial in the low‐frequency range remains a challenge. Currently, acoustic metamaterials with double negative parameters are made of different materials, which can limit their application and design. Herein, a single‐phase multiple re‐entrant star‐shaped honeycomb (MRSSH) is designed and the double negative parameters and bandgaps are simulated. The numerical results show that the MRSSH exhibits three bandgaps and double negative characteristics (negative effective mass density and negative effective modulus) within a certain frequency range. The formation mechanics of bandgaps are investigated by analyzing the vibration modes. Moreover, the effects of geometry parameters such as internal concave angle and re‐entrant on the bandgaps and vibration modes of the MRSSH are investigated. By adjusting the geometry parameters, the dispersion curves and bandgap distribution can be tuned simultaneously. This study provides a new idea for designing a single‐phase lightweight metamaterial that can apply to noised reduction, vibration control, and super‐resolution imaging.

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“…As significant advances in engineering structures, metamaterials have attracted increasing attention for their applications in controlling wave propagation and vibration reduction [1][2][3]. Metamaterials are composed of artificial periodic structures that are designed to achieve novel physical properties, such as an effective negative mass [4][5][6], negative refraction [7,8] and topological effects [9,10].…”

Section: Introductionmentioning

confidence: 99%

Gradient continuum model of nonlocal metamaterials with long-range interactions

Yang¹,

Wang²

2022

Phys. Scr.

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Compared with classical metamaterials, nonlocal metamaterials have distributed long-range interactions. In this paper, a gradient continuum model is developed to properly predict the dispersive behaviour of a one-dimensional nonlocal metamaterial with long-range interactions. First, a discrete monoatomic model is reconstructed into a supercell model. Then, a Taylor expansion based on supercell model is applied to the continuous displacement field, resulting in a gradient continuum model. The dispersive relation of the gradient continuum model is obtained and compared with discrete supercell model to evaluate its suitability. The proposed gradient continuum model with the eighth-order truncation is found to be enough to capture the dispersion behaviours all over the first Brillouin zone. The results indicate that the proposed gradient continuum model can predict the dispersion behaviour of the one-dimensional nonlocal system very well. Furthermore, the gradient continuous model of two mass-in-mass system with long-range interactions are verified.

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An ultrawide-zero-frequency bandgap metamaterial with negative moment of inertia and stiffness

Cited by 19 publications

References 30 publications

Co-Design of Mechanical and Vibration Properties of a Star Polygon-Coupled Honeycomb Metamaterial

Co-Design of Mechanical and Vibration Properties of a Star Polygon-Coupled Honeycomb Metamaterial

Multiple Re‐Entrant Star‐Shaped Honeycomb with Double Negative Parameters and Bandgap Properties

Gradient continuum model of nonlocal metamaterials with long-range interactions

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