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September 10, 2025International Journal of Protective Structures

Effect of geometrical grading on the low-velocity impact behavior of sandwich structures with 3D-printed auxetic core materials

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Authors

MZMorteza ZanganehGolestan UniversityHKHadi KhoramishadIran University of Science and Technology

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Overview

Experimental analysis improves low-velocity impact behavior in sandwich panels with auxetic designs, suggesting better energy absorption potential.

Key Points

  • Graded auxetic geometries achieved 98.9% and 99.8% energy absorption in low-velocity impacts.
  • Results indicate lower permanent deformation and higher crushing force efficiency compared to conventional designs.
  • Cellular core sandwich panels were evaluated using experimental methods with various auxetic and non-graded geometries.
  • Findings highlight the superior performance of graded designs for enhancing impact resistance in critical infrastructure.

Cite This Study

Zanganeh et al. (2025) studied this question.

synapsesocial.com/papers/68c1d98f54b1d3bfb60fb801https://doi.org/10.1177/20414196251369116
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Also Consider

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

  1. 1Repeated impact response and energy absorption of geometrically graded chiral sandwich panels2026
  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 design parameters of auxetic structure core on quasi-static and low-velocity impact response of glass fiber reinforced polymer composite sandwich structures2025
  4. 4Enhancing mechanical performance of sandwich structures via uniform and gradient auxetic cores2026
  5. 5Bending and Impact Performance of Hybrid Sandwich Composites with Different Cellular Core Geometries2026