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September 5, 2025Advanced ScienceOpen Access

Electro‐Thermally Controlled Active Mechanical Metamaterials with Programmable Stiffness and Nonreciprocity

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Authors

JDJai DunneRCRobert D. CrapnellKDKrzysztof K. Dudek

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Overview

This paper reveals a new class of active mechanical metamaterials that exhibit programmable stiffness and nonreciprocity, suggesting significant implications for robotics and medical devices.

Key Points

  • This metamaterial can switch between compressive and shear deformation, effectively modulating stiffness based on external programming.
  • It achieves up to double the pressure between adjacent unit-cells while maintaining traction at zero in specific areas.
  • Utilizing electro-thermally activated beams, the study presents a method to control buckling modes and stiffness changes effectively.
  • The approach offers reliable control even in the presence of manufacturing imperfections, highlighting its practical utility.

Cite This Study

Dunne et al. (2025) studied this question.

synapsesocial.com/papers/68bb42272b87ece8dc958ca7https://doi.org/10.1002/advs.202511669
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