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Strain-rate dependent mechanics of metallic kirigami [dataset] Open Access

Kirigami, the art of folding and cutting paper, has inspired a new class of structures with remarkable properties. Novel applications include: soft robotics, metamaterials, deployable structures, and energy-dissipating devices. Many studies have explored the behaviour of kirigami structures with varying cut patterns. However, these studies have focused on quasi-static deformations and linear elastic materials. In this work, we investigate the dynamic response of metallic kirigami structures. Using static and dynamic experiments, supplemented by numerical simulations and semi-analytical calculations, we provide a comprehensive understanding of the strain-rate-dependent behaviour of kirigami. More specifically, we compute a critical impact velocity beyond which the response of the kirigami switches from imperfection-dominated to the formation of a tension-induced buckling front. This critical impact velocity captures the strain-rate dependent mechanics of metallic kirigami and can be computed using the static stress-strain response, greatly reducing computational (and experimental) time and complexity. The findings of this study provide the foundation for designing advanced kirigami-based systems tailored to dynamic loading regimes, such as blast and impact applications.

Descriptions

Resource type

Dataset

Contributors

Contact person: Walker, Martin ¹
Creator: Singh, Amanpreet ¹
Data collector: Singh, Amanpreet ¹
Data curator: Singh, Amanpreet ¹
Editor: Singh, Amanpreet ¹

¹ Durham University

Funder

Engineering and Physical Sciences Research Council

Research methods

Other description

Keyword

Kirigami
Energy dissipation
Blast
Impact
Critical impact velocity
Strain-rate

Subject

Energy dissipation
Metamaterials

Location

Language

Cited in

Identifier

ark:/32150/r2s4655g677
doi:10.15128/r2s4655g677

Rights

Creative Commons Attribution 4.0 International (CC BY)

Publisher

Durham University

Date Created

File Details

Depositor

M.G. Walker

Date Uploaded

4 September 2025, 16:09:53

Date Modified

5 September 2025, 13:09:18

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Characterization

File format: zip (ZIP Format)

Mime type: application/zip

File size: 381122877

Last modified: 2025:09:04 17:50:17+01:00

Filename: Data_repository_updated.zip

Original checksum: c8a21c285130e4878f77f72a5944637e