Title: Folding at the Microscale: Enabling Multifunctional 3D Origami‐Architected Metamaterials

Abstract

Abstract Mechanical metamaterials inspired by the Japanese art of paper folding have gained considerable attention because of their potential to yield deployable and highly tunable assemblies. The inherent foldability of origami structures enlarges the material design space with remarkable properties such as auxeticity and high deformation recoverability and deployability, the latter being key in applications where spatial constraints are pivotal. This work integrates the results of the design, 3D direct laser writing fabrication, and in situ scanning electron microscopic mechanical characterization of microscale origami metamaterials, based on the multimodal assembly of Miura‐Ori tubes. The origami‐architected metamaterials, achieved by means of microfabrication, display remarkable mechanical properties: stiffness and Poisson’s ratio tunable anisotropy, large degree of shape recoverability, multistability, and even reversible auxeticity whereby the metamaterial switches Poisson’s ratio sign during deformation. The findings here reported underscore the scalable and multifunctional nature of origami designs, and pave the way toward harnessing the power of origami engineering at small scales.

Authors:

Lin, Zhaowen ^[1]; Novelino, Larissa S. ^[2]; Wei, Heming ^[1]; Alderete, Nicolas A. ^[1]; Paulino, Glaucio H. ^[2]; Espinosa, Horacio D.  ^[1];

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• Search DOE PAGES for ORCID "0000-0002-1907-3213"

Krishnaswamy, Sridhar ^[1]

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+ Show Author Affiliations

1. Department of Mechanical Engineering Northwestern University Evanston IL 60208 USA
2. Department of Civil and Environmental Engineering Georgia Institute of Technology Atlanta GA 30318 USA

Publication Date:

Mon Jul 27 00:00:00 EDT 2020

Sponsoring Org.:

USDOE

OSTI Identifier:

1644216

Grant/Contract Number:  

DE‐AC02‐06CH11357

Resource Type:

Publisher's Accepted Manuscript

Journal Name:

Small

Additional Journal Information:

Journal Name: Small Journal Volume: 16 Journal Issue: 35; Journal ID: ISSN 1613-6810

Publisher:

Wiley Blackwell (John Wiley & Sons)

Country of Publication:

Germany

Language:

English