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June 14, 2026Fibers and PolymersOpen Access

Bending and Impact Performance of Hybrid Sandwich Composites with Different Cellular Core Geometries

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Authors

UÖUğur ÖzmenManisa Celal Bayar UniversityMYMuttalip Esad YavuzManisa Celal Bayar University

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Overview

Experimental investigation shows core geometry affects bending and impact performance in composites, suggesting design improvements.

Key Points

  • This study aims to understand how different core geometries influence the performance of hybrid sandwich composites.
  • Hybrid sandwich composites made of carbon fiber/epoxy skins and thermoplastic polyurethane cores were tested.
  • Cores with various geometries, including honeycomb and hexachiral, were fabricated using fused deposition modeling.
  • Three-point bending and Charpy impact tests were performed to evaluate mechanical performance.
  • The hexachiral honeycomb core had the highest bending strength and impact energy absorption.
  • Lightweight geometries like honeycomb and grid cores showed competitive performance when normalized by mass.
  • Auxetic geometries had better deformation but lower efficiency in terms of mass-normalized performance.

Cite This Study

Özmen et al. (2026) studied this question.

synapsesocial.com/papers/6a2e4608b1cc60ccdea8af1bhttps://doi.org/10.1007/s12221-026-01467-9
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Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Effect of cellular core topology on the mechanical performance of carbon/epoxy sandwich composites with 3D-printed PVA cores2026
  2. 2Behavior of sandwich structures with 3D-printed auxetic and non-auxetic cores under low velocity impact: Experimental and computational analysis2024 · 1 citations
  3. 3Effect of core design on energy absorption and structural integrity of sandwich composites - A comprehensive review2026
  4. 4Effect of core hybridization on composite sandwich panels’ low-velocity impact and bending response2026 · 1 citations
  5. 5Effect of geometrical grading on the low-velocity impact behavior of sandwich structures with 3D-printed auxetic core materials2025