Topological metamaterial plates: Numerical investigation, experimental validation and applications

Ni, Anchen; Shi, Zhifei

doi:10.1016/j.engstruct.2022.115288

Cited by 22 publications

(2 citation statements)

References 52 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A mass ratio value that is greater than unity ( γ = 13.9 with the baseline design parameters) is deliberately attained to ensure that the resonant masses provide a significant impact on the dynamic response of the proposed metamaterial. Previous works have shown that the magnitude of the mass ratio, which governs the relative influence of the resonant elements on the system response, plays a crucial role in achieving broad low‐frequency bandgaps [ 54 , 55 ] and effective topological wave propagation [ 56 , 57 ] in locally resonant mechanical metamaterials. Furthermore, previous research has revealed that multimodal resonances can be harnessed to create multiple low‐frequency bandgaps in mechanical metamaterials.…”

Section: Resultsmentioning

confidence: 99%

Uncovering and Experimental Realization of Multimodal 3D Topological Metamaterials for Low‐Frequency and Multiband Elastic Wave Control

Dorin,

Khan,

Wang

2023

Advanced Science

View full text Add to dashboard Cite

Topological mechanical metamaterials unlock confined and robust elastic wave control. Recent breakthroughs have precipitated the development of 3D topological metamaterials, which facilitate extraordinary wave manipulation along 2D planar and layer‐dependent waveguides. The 3D topological metamaterials studied thus far are constrained to function in single‐frequency bandwidths that are typically in a high‐frequency regime, and a comprehensive experimental investigation remains elusive. In this paper, these research gaps are addressed and the state of the art is advanced through the synthesis and experimental realization of a 3D topological metamaterial that exploits multimodal local resonance to enable low‐frequency elastic wave control over multiple distinct frequency bands. The proposed metamaterial is geometrically configured to create multimodal local resonators whose frequency characteristics govern the emergence of four unique low‐frequency topological states. Numerical simulations uncover how these topological states can be employed to achieve polarization‐, frequency‐, and layer‐dependent wave manipulation in 3D structures. An experimental study results in the attainment of complete wave fields that illustrate 2D topological waveguides and multi‐polarized wave control in a physical testbed. The outcomes from this work provide insight that will aid future research on 3D topological mechanical metamaterials and reveal the applicability of the proposed metamaterial for wave control applications.

show abstract

Section: Resultsmentioning

confidence: 99%

Uncovering and Experimental Realization of Multimodal 3D Topological Metamaterials for Low‐Frequency and Multiband Elastic Wave Control

Dorin,

Khan,

Wang

2023

Advanced Science

View full text Add to dashboard Cite

show abstract

“…The thermal transport of alloy-based nanostructures with various porosity percentages was studied by [67]. Several researchers, however, have searched for alternative designs to transform heat transfer through thermal metamaterials [68], tunable asymmetric sound absorptions [69], topological design [70], manipulation of flexural waves at low frequencies and broadband frequencies [71], and broadband acoustic absorbers [72]. Figure 6 shows another example of metamaterials used for automotive applications.…”

Section: Transport Metamaterialsmentioning

confidence: 99%

A Recent Review of the Sandwich-Structured Composite Metamaterials: Static and Dynamic Analysis

Kadum Njim,

Emad,

Noori Hamzah

2023

Jurnal Teknologi

View full text Add to dashboard Cite

Metamaterials, commonly known as synthetic composites with exotic dynamic characteristics, have recently generated increasing interest. A short description of composite metamaterial and their types, applications, and manufacturing techniques was reported. Contrary to all previous research, this investigation focuses on the recent studies of static and dynamic analysis of composite metamaterial structure and mechanical performance using experimental and finite element method analyses. Furthermore, the literature has described several methods for constructing composite sandwiches, properties, and advantages over conventional materials. Due to the wide variety of materials and configurations used in the final product, there is a corresponding diversity in manufacturing techniques. Therefore, the current research has mainly concentrated on a wealth of information that should be important to all researchers interested in keeping up with the most recent developments in composite metamaterial sandwich structures. Consequently, this study can be considered a guideline for researchers who intend further research on the mechanical behavior analysis and technology of designed composite metamaterial structures.

show abstract

A novel 3D topological metamaterial for controllability of polarization-dependent multilayer elastic waves

Wang,

Chen

et al. 2024

Composites Part B: Engineering

View full text Add to dashboard Cite

Topological metamaterial plates: Numerical investigation, experimental validation and applications

Cited by 22 publications

References 52 publications

Uncovering and Experimental Realization of Multimodal 3D Topological Metamaterials for Low‐Frequency and Multiband Elastic Wave Control

Uncovering and Experimental Realization of Multimodal 3D Topological Metamaterials for Low‐Frequency and Multiband Elastic Wave Control

A Recent Review of the Sandwich-Structured Composite Metamaterials: Static and Dynamic Analysis

A novel 3D topological metamaterial for controllability of polarization-dependent multilayer elastic waves

Contact Info

Product

Resources

About