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Mechanical metamaterials on the way from laboratory scale to industrial applications: Challenges for characterization and scalability

: Fischer, Sarah C.L.; Hillen, Leonie; Eberl, Chris

Fulltext urn:nbn:de:0011-n-5999268 (3.8 MByte PDF)
MD5 Fingerprint: de26dd8b5edaa948ea4e037987a2095e
Created on: 10.9.2020

Materials 13 (2020), No.16, Art. 3605, 16 pp.
ISSN: 1996-1944
Fraunhofer-Gesellschaft FhG
Fraunhofer Internal Programs; Attract 025-601214; Fraunhofer Cluster of Excellence “Programmable Materials”
Journal Article, Electronic Publication
Fraunhofer IWM ()
Fraunhofer IZFP ()
mechanical metamaterials; industry; scalability; characterization; processing-microstructure-property relationship

Mechanical metamaterials promise a paradigm shift in materials design, as the classical processing-microstructure-property relationship is no longer exhaustively describing the material properties. The present review article provides an application-centered view on the research field and aims to highlight challenges and pitfalls for the introduction of mechanical metamaterials into technical applications. The main difference compared to classical materials is the addition of the mesoscopic scale into the materials design space. Geometrically designed unit cells, small enough that the metamaterial acts like a mechanical continuum, enabling the integration of a variety of properties and functionalities. This presents new challenges for the design of functional components, their manufacturing and characterization. This article provides an overview of the design space for metamaterials, with focus on critical factors for scaling of manufacturing in order to fulfill industrial standards. The role of experimental and simulation tools for characterization and scaling of metamaterial concepts are summarized and herewith limitations highlighted. Finally, the authors discuss key aspects in order to enable metamaterials for industrial applications and how the design approach has to change to include reliability and resilience.