Design and Analysis of a 3D Frictional Mechanical Metamaterial for Efficient Energy Dissipation
Date
Authors
Jeong, E
Calius, E
Ramezani, M
Supervisor
Item type
Journal Article
Degree name
Journal Title
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Volume Title
Publisher
Wiley
Abstract
This study introduces a novel frictional mechanical metamaterial composed of a central hexagon or re-entrant honeycomb frame, a lower section with four tapered columns, and an upper portion with a blade shape. When subjected to an external uniaxial force, the 3D structure of the metamaterial utilizes sliding interactions to dissipate frictional energy. The mechanical properties of the proposed metamaterial, such as load-displacement relationships, hysteresis area, and peak force, can be fine-tuned by adjusting geometric parameters and constituent materials. Extensive analysis is conducted through experimental compression tests, finite element (FE) simulations, and theoretical modeling. Comparative assessments of the metamaterial's energy dissipation performance demonstrated a good agreement between experimental and simulation results, with minor variations observed for deeper compression cycles. The proposed metamaterial offers the potential for superior elastic energy absorption and dissipation, making it a promising solution for applications requiring repeated energy dissipation or damping under cyclical loads while maintaining a lightweight profile.Description
Keywords
3403 Macromolecular and Materials Chemistry, 40 Engineering, 34 Chemical Sciences, 7 Affordable and Clean Energy, 34 Chemical sciences, 40 Engineering, 51 Physical sciences, elastic energy dissipation, frictional metamaterial, hexagonal and re-entrant unit cells
Source
Advanced Materials Technologies, ISSN: 2365-709X (Print); 2365-709X (Online), Wiley. doi: 10.1002/admt.202400614
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Rights statement
© 2024 The Author(s). Advanced Materials Technologies published by Wiley-VCH GmbH. This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.