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August 19, 2026Proceedings of the Institution of Mechanical Engineers Part L Journal of Materials Design and Applications

Design of 3D-printed magneto-responsive metamaterials for programmable stiffness and energy absorption

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Authors

OKOzra Siasati KhiaviMKMahdi KhajepourMBMostafa Baghani

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Overview

Engineering study demonstrates non-contact magnetic control of stiffness and energy absorption in 3D-printed metamaterials, suggesting potential for adaptive mechanical systems.

Key Points

  • To develop a 3D-printed polymeric metamaterial unit cell with embedded pins capable of programmable stiffness and energy absorption via non-contact magnetic actuation.
  • Fabricated unit cell specimens from K+ polymer using 3D printing and integrated embedded pins inside a housing structure.
  • Controlled internal pin orientation through non-contact interaction using an external neodymium magnet.
  • Evaluated mechanical performance under multiple loading conditions using finite element numerical simulations and experimental testing.
  • Shaft reorientation driven by external magnetic fields increased structural stiffness by more than 30.91%.
  • Energy absorption capacity improved by approximately 16% following magnetic reconfiguration.
  • Finite element simulations demonstrated strong agreement with experimental measurements across alternative loading conditions.

Cite This Study

Khiavi et al. (2026) studied this question.

synapsesocial.com/papers/6a85643903308d306e2d7d4bhttps://doi.org/10.1177/14644207261477070
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