Polymer-Based Metamaterials and Metastructures

A special issue of Polymers (ISSN 2073-4360). This special issue belongs to the section "Polymer Composites and Nanocomposites".

Deadline for manuscript submissions: 31 May 2025 | Viewed by 633

Special Issue Editors


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Guest Editor
School of Mechanical Engineering, Xi'an Jiaotong University, Xi'an 710049, China
Interests: multiscale simulation; intelligent design; kirigami/origami metastructure; soft actuator; flexible sensor
Special Issues, Collections and Topics in MDPI journals

E-Mail Website
Guest Editor
School of Mechanical Engineering, Xi'an Jiaotong University, Xi'an 710049, China
Interests: bio-inspired soft robotics; continuum robotics; intelligent sensing; intelligent control; intelligent damage detection; intelligent maintenance
Special Issues, Collections and Topics in MDPI journals
School of Mechanical Engineering, Xi’an Jiaotong University, Xi’an 710049, China
Interests: composite structure design; damage mechanics; multiscale design and modeling; 3D-printed composites; auxetic structure

Special Issue Information

Dear Colleagues,

The metamaterial (or metastructure as structural level scale) is an emerging class of artificial composite with unique properties which is unusual in traditional natural materials.  With the development from hard matter to soft matter, polymer-based metamaterials and metastructures have recently attracted significant attention owning to their novel applications, such as actuation, sensing, energy harvesting, computation and others. In particular, the joining of functional polymers and metamaterials/metastructures provides novel and smart characteristics and further broadens their application boundary.

This Special Issue focuses on the theory, design, fabrication, and related applications of polymer-based metamaterials and metastructures, collecting recent research in the related field. The issue will not only cover subjects in electromagnetics and optics but also acoustics, mechanics, thermodynamics, materials science, condensed matter, and several other disciplines.

Dr. Yu Sun
Dr. Laihao Yang
Dr. Di Zhang
Guest Editors

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Keywords

  • metamaterials/metastructures
  • metasurfaces
  • reprogrammable/reconfigurable metastructures
  • intelligent metastructures
  • multiphysics metastructures
  • chiral metastructures
  • nonlinear aspects of metastructures
  • deep learning design

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Published Papers (1 paper)

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Research

34 pages, 14745 KiB  
Article
Analysis of Mechanical Properties and Parameter Dependency of Novel, Doubly Re-Entrant Auxetic Honeycomb Structures
by Levente Széles, Richárd Horváth and Lívia Cveticanin
Polymers 2024, 16(17), 2524; https://doi.org/10.3390/polym16172524 - 5 Sep 2024
Viewed by 446
Abstract
This study proposes a new, doubly re-entrant auxetic unit-cell design that is based on the widely used auxetic honeycomb structure. Our objective was to develop a structure that preserves and enhances the advantages of the auxetic honeycomb while eliminating all negative aspects. The [...] Read more.
This study proposes a new, doubly re-entrant auxetic unit-cell design that is based on the widely used auxetic honeycomb structure. Our objective was to develop a structure that preserves and enhances the advantages of the auxetic honeycomb while eliminating all negative aspects. The doubly re-entrant geometry design aims to enhance the mechanical properties, while eliminating the buckling deformation characteristic of the re-entrant deformation mechanism. The effects of the geometric modification are described and evaluated using two parameters, offset and deg. A series of experiments were conducted on a wide range of parameters based on these two parameters. Specimens were printed via the vat photopolymerization process and were subjected to a compression test. Our aim was to investigate the mechanical properties (energy absorption and compressive force) and the deformation behaviour of these specimens in relation to the relevant parameters. The novel geometry achieved the intended properties, outperforming the original auxetic honeycomb structure. Increasing the offset and deg parameters results in increasing the energy absorption capability (up to 767%) and the maximum compressive force (up to 17 times). The right parameter choice eliminates buckling and results in continuous auxetic behaviour. Finally, the parameter dependency of the deformation behaviour was predicted by analytical approximation as well. Full article
(This article belongs to the Special Issue Polymer-Based Metamaterials and Metastructures)
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