Numerical Investigation of Ultra-Wide Low-Frequency Wave Attenuation Using Seismic Metamaterials with Auxetic Slender Strips DOI Creative Commons
Haosheng Liu, Hongbo Zhang

Crystals, Год журнала: 2024, Номер 15(1), С. 13 - 13

Опубликована: Дек. 26, 2024

Seismic metamaterials are an emerging vibration-damping technology, yet concentrating the bandgap in low-frequency range remains challenging due to constraints imposed by lattice size. In this study, we numerically investigated seismic connected auxetic (negative Poisson’s ratio) slender strips, which exhibit exceptionally wide band gap for vibration isolation. Using a finite element method, first performed comparative analysis of several representative metamaterial configurations. The results showed that thin strip-connected steel column structure demonstrated outstanding performance, with complete starting at 1.61 Hz, ending 80.40 spanning width 78.79 and achieving relative bandwidth 192.15%. Notably, while most existing designs feature constants ten-meter (with smallest around two meters), our proposed achieves these constant only one meter. We further analyzed transmission characteristics structure, both without concrete filling. Interestingly, significant attenuation, approaching 70 dB, was observed below (approximately 0.22–1.17 Hz), even use concrete. By comparing flexural wave spectrum, attributed attenuation primarily presence gap, phenomenon often overlooked previous studies. This lower frequencies highlights potential effectively reducing energy. To enhance number periods propagation direction can be increased. Additionally, systematically explored influence geometric parameters on gap. found optimal were achieved strip length 0.05 m, its between 0.1 m. Our findings underscore critical role strips broadband approach presented along discovery gaps, provides valuable insights engineering other applications requiring effective reduction strategies.

Язык: Английский

Design strategy of curved-beam based metamaterial with unprecedented lateral deformation mode transition DOI

Jinyu Ji,

Kai Zhang, Xiaogang Guo

и другие.

International Journal of Mechanical Sciences, Год журнала: 2025, Номер unknown, С. 110136 - 110136

Опубликована: Март 1, 2025

Язык: Английский

Процитировано

2

Recent advances in graphene origami-enabled auxetic metamaterial structures DOI Creative Commons
Jinlong Yang, Shaoyu Zhao, Jie Yang

и другие.

Engineering Structures, Год журнала: 2025, Номер 333, С. 120203 - 120203

Опубликована: Март 31, 2025

Язык: Английский

Процитировано

2

Design and optimization of a mechanical metamaterial featuring dual tunability in auxeticity and bandgap modulation DOI
Jiayi Hu, Zhi Gong, Yuanlong Li

и другие.

Composite Structures, Год журнала: 2025, Номер unknown, С. 119050 - 119050

Опубликована: Март 1, 2025

Язык: Английский

Процитировано

1

A Hollow Optimized Simple Cubic Lattice Structure Based on the TPMS Geometry DOI
Ze She, Fan Yang, Jiacheng Wu

и другие.

Acta Mechanica Solida Sinica, Год журнала: 2025, Номер unknown

Опубликована: Март 17, 2025

Язык: Английский

Процитировано

1

Design Strategy of Curved-Beam Based Metamaterial with Unprecedented Lateral Deformation Mode Transition DOI

Jinyu Ji,

Kai Zhang, Xiaogang Guo

и другие.

Опубликована: Янв. 1, 2025

Язык: Английский

Процитировано

0

On the Zero Frequency Bandgap of Seismic Metamaterials DOI Creative Commons

Jingyu Luo,

Kaiming Bi, Xingbo Pu

и другие.

Journal of Sound and Vibration, Год журнала: 2025, Номер unknown, С. 119064 - 119064

Опубликована: Март 1, 2025

Язык: Английский

Процитировано

0

A broadband seismic metamaterial with gradient resonators for earthquake-proofing reservoirs DOI

Jingmei Tan,

Peng‐Cheng Ma, Boyang Zhang

и другие.

Physics Letters A, Год журнала: 2025, Номер unknown, С. 130505 - 130505

Опубликована: Март 1, 2025

Язык: Английский

Процитировано

0

Fractal Analysis and Mechanical Characterization of 3D‐Printed Concave Hexagonal Structures With Negative Poisson's Ratio DOI
S. R. Lin, Mao‐Sheng Ran,

Donghang Jie

и другие.

Fatigue & Fracture of Engineering Materials & Structures, Год журнала: 2025, Номер unknown

Опубликована: Апрель 7, 2025

ABSTRACT Materials with a negative Poisson's ratio have gained attention for their unique mechanical properties, enabling applications in aerospace, construction, and medicine. However, the complex geometry of such structures poses challenges traditional manufacturing. 3D printing offers solution, allowing precise fabrication these intricate designs. This study uses to create three types from PLA: concave hexagonal, four‐directional chiral, biomimetic feather structures. Tensile testing revealed that hexagonal structure outperformed others strength. Finite element simulations confirmed its superior load‐bearing capacity during fracture. Additionally, fractal analysis showed had highest dimension crack propagation, further validating superiority. These findings highlight structure's advantages through experimental, numerical, analyses.

Язык: Английский

Процитировано

0

Suppressing multiband Lamb wave propagation using surface-mounted curved elastic metasurfaces DOI Creative Commons

Shu‐Zhen Huang,

Lei Zhang, Guilin Wen

и другие.

Journal of Applied Physics, Год журнала: 2025, Номер 137(20)

Опубликована: Май 22, 2025

Vibration control in engineering structures is a critical and common challenge. Acoustic metasurfaces offer novel approach for vibration by manipulating acoustic wave propagation. However, conventional designs controlling propagation often require material removal, such as holes or slots, which compromise structural integrity complicate fabrication. This study introduces surface-mounted curved elastic metasurface that effectively suppresses Lamb without modifying the base material, thereby preserving its mechanical strength. By modulating transmission path adjusting phase of transmission, this design achieves significant amplitude reduction through destructive interferences. Structural dimension optimization enhances suppression across thin plates beams, providing broadband multiple frequency bands. holds broad potential manipulation advanced device development.

Язык: Английский

Процитировано

0

Strengthening Mechanisms of Bioinspired Interpenetrating Phase Composites with Negative Poisson's Ratio DOI
Junjie Chen,

Zhichao Luo,

Qian Tang

и другие.

Thin-Walled Structures, Год журнала: 2025, Номер unknown, С. 113520 - 113520

Опубликована: Май 1, 2025

Язык: Английский

Процитировано

0