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Advances in Design and Characterization of Graded and Hierarchical Honeycomb Materials (2nd Edition)

A special issue of Materials (ISSN 1996-1944). This special issue belongs to the section "Porous Materials".

Deadline for manuscript submissions: closed (20 February 2026) | Viewed by 882

Special Issue Editor

School of Civil Engineering, Central South University, Changsha 410083, China
Interests: mechanical properties of cellular materials; multifunctional polymer composites and structures; additive manufacturing; design and characterization of mechanical metamaterials; bioinspired materials; impact dynamics
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

As a typical lightweight cellular material, honeycombs have attracted great interest and are extensively used in a wide range of applications, including aerospace, automotive, railway vehicle, maritime, architecture, packaging, etc., due to their high specific stiffness and strength, excellent energy absorption capability, and multifunctional characteristics. Driven by the increasing demand for high-performance lightweight materials, advances in the design of honeycombs with enhanced performance have occurred in recent years. Inspired by natural biomaterials, structural hierarchy and functional gradient were introduced in honeycombs, where they have demonstrated promising and effective ways to improve the performance of honeycombs.

This Special Issue aims to provide an overview of the latest achievements in the design and characterization of graded and hierarchical honeycombs and to highlight possible research directions to further advance the development of these materials. The topic of this Special Issue is quite extensive, including the design, fabrication, characterization, functionalization, applications, etc. of honeycombs.

Contributions are welcome on topics that include, but are not limited to, the folllowing:

  • Novel graded or hierarchical honeycomb materials;
  • Graded or hierarchical design strategies for honeycomb materials;
  • Advanced manufacturing and processing technologies;
  • Novel methods for performance characterization;
  • Optimal design of graded or hierarchical honeycomb materials;
  • Classic graded or hierarchical honeycomb configurations and their properties;
  • Applications of graded or hierarchical honeycomb materials.

Welcome to choose our special issue to submit your manuscript.

Dr. Yong Tao
Guest Editor

Manuscript Submission Information

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Keywords

  • graded honeycombs
  • hierarchical honeycombs
  • topological design
  • optimal design
  • advanced fabrication techniques
  • theoretical modeling
  • experimental investigation
  • finite element analysis

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Published Papers (1 paper)

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Research

15 pages, 3743 KB  
Article
Mechanical and Microstructural Characterization of Trapezoidal Corrugated-Core Al Sandwich Panels Under Quasi-Static Compression
by Alessandra Ceci, Girolamo Costanza and Maria Elisa Tata
Materials 2026, 19(3), 548; https://doi.org/10.3390/ma19030548 - 30 Jan 2026
Viewed by 547
Abstract
Sandwich panels with trapezoidal (corrugated) cores combine low weight, high specific stiffness, and energy absorption capability. This study analyzes four configurations with different core heights by means of microstructural analyses (optical microscopy, SEM/EDS, XRD) and quasi-static compression tests. The tests yield stress–strain curves [...] Read more.
Sandwich panels with trapezoidal (corrugated) cores combine low weight, high specific stiffness, and energy absorption capability. This study analyzes four configurations with different core heights by means of microstructural analyses (optical microscopy, SEM/EDS, XRD) and quasi-static compression tests. The tests yield stress–strain curves with an initial linear stage, a peak, a plateau, and a densification stage. Peak stresses range from 0.5 MPa for the thickest core (P1) to 6.2 MPa for the thinnest core (P4), while the energy absorbed density (EAD) increases with strain: at ε = 30% it varies from 0.031 to 0.670 J/cm3, and at ε = 50% the thin-core configuration reaches ≈1.113 J/cm3. The face sheets and the core are both manufactured from AA 3000 series (Al–Mn) aluminum alloy; widespread micro-porosity and Fe/Mn-rich phases are observed by SEM/EDS. XRD confirms aluminum with different peak intensities ascribable to the manufacturing texture. Increasing the core height promotes earlier local/global instabilities and reduces the peak stress; the thinnest core displays higher stiffness and peak loads. These findings support the use of trapezoidal corrugation where low weight and progressive strain are required. Full article
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