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Updated: Jun 25, 2026
09:39
Characterizing Dissipative Elastic Metamaterials Produced by Additive Manufacturing
Published on: June 28, 2024
Nonlocal Metaspire: A Scalable Elastic Material Platform With Decoupled Mechanical Modes
Seung Han Kim1, Myung Hwan Bae2, Ye Jeong Shin1
1Department of Mechanical Engineering, Seoul National University, Seoul, Republic of Korea.
Advanced Materials (Deerfield Beach, Fla.)
|June 23, 2026
Summary
This study introduces a scalable elastic nonlocal metamaterial platform using the Metaspire architecture. This innovation enables advanced wave control by overcoming limitations in scalability and mode coupling for novel wave devices.
Area of Science:
- Physics
- Materials Science
- Wave Phenomena
Background:
- Nonlocal metamaterials offer unique wave control via extraordinary band structures.
- Existing elastic nonlocal metamaterials face scalability and mode coupling challenges.
- These limitations hinder the development of advanced wave control systems.
Purpose of the Study:
- To propose a novel, scalable material platform for elastic nonlocal metamaterials.
- To investigate wave motions and the role of symmetry in flexural band behavior.
- To overcome scalability and mode coupling limitations in elastic metamaterials.
Main Methods:
- Development of the "Metaspire" architecture with sequential rotation.
- Detailed investigation of wave motions around maxon and roton points.
- Experimental fabrication and validation of the proposed metamaterial platform.
Main Results:
- Demonstrated high scalability of the proposed elastic nonlocal metamaterial platform.
- Successfully suppressed mode coupling, enabling clearer wave phenomenon investigation.
- Validated the Metaspire architecture's effectiveness through fabrication and experiments.
Conclusions:
- The proposed Metaspire architecture provides a scalable solution for elastic nonlocal metamaterials.
- This platform facilitates the study of unique nonlocal wave phenomena by mitigating mode coupling.
- Enables the development of multifunctional wave platforms for new wave systems and devices.
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