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  • Open Access

Architecting mechanisms of damage in topological metamaterials

Leo de Waal, Matthaios Chouzouris, and Marcelo A. Dias*

  • *Contact author: mdias@ed.ac.uk
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Phys. Rev. Research 7, 033177 – Published 21 August, 2025

DOI: https://doi.org/10.1103/ckmq-tf86

Abstract

Architecting mechanisms of damage in metamaterials by leveraging lattice topology and geometry poses a vital yet complex challenge, essential for engineering desirable mechanical responses. Of these metamaterials, Maxwell lattices, which are on the verge of mechanical stability, offer significant potential for advanced functionality. By leveraging their robust topological features, they enable precise control of effective elastic properties, manipulation of stress localization and delocalization across specific domains, and targeted global damage that follows local fracture events. In this work, we identify topology and geometry-dependent parameters that establish a simple, yet precise, framework for designing the behavior of nonidealized Maxwell lattices and their damage processes. We numerically explore the underlying phenomenology to demonstrate how this framework can guide or arrest damage in lattices, both with and without domain walls and additional boundary constraints. Our approach uncovers a robust way to manipulate the mechanisms of damage and the path they follow in metamaterials, with further insight into crack arrest, diversion, and shielding.

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Phys. Rev. Research 7, 033177– Published 21 August, 2025
  • Received 17 March 2025
  • Accepted 16 June 2025
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Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI.

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