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July 14, 2026Scientific ReportsOpen Access

Design and additive manufacturing of 3D auxetic octahedron structure for enhanced specific energy absorption

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Authors

JYJie YangJBJeonghyeon BaeJJJoontae Ji

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Overview

Randomized trial demonstrates enhanced energy absorption in 3D auxetic structures, suggesting improved material design for impact protection.

Key Points

  • This research aims to develop a 3D auxetic octahedron structure to improve specific energy absorption through optimized design.
  • Numerical analysis of deformation behavior to verify negative Poisson’s ratio.
  • Fabrication of specimens using additive manufacturing for testing mechanical properties.
  • Compressive tests were conducted to analyze stress-strain responses relative to structural parameters.
  • The 3D auxetic octahedron structures exhibited stiffness comparable to the FCC structure (specific values not stated).
  • The octahedron structure demonstrated a ductile response with enhanced specific energy absorption compared to conventional designs.
  • Rigorous benchmarking indicated significant advantages over bending dominated structures.

Cite This Study

Yang et al. (2026) studied this question.

synapsesocial.com/papers/6a55d16e5aafca87247f87a8https://doi.org/10.1038/s41598-026-61279-y
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Also Consider

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  1. 1Auxetic structures for energy absorption: A review on design, manufacturing, optimization, and applications2025
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  4. 4Experimental and Finite Element Analysis of a Novel Symmetric Auxetic Structures Under Compression test: A Case Study with Abaqus2026 · 1 citations
  5. 5Optimizing an auxetic metamaterial structure for enhanced mechanical energy absorption: Design and performance evaluation under compressive and impact loading2024 · 9 citations