On the undulatory behaviour of metallic glass foils: a novel spring-type behaviour

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dc.contributor.authorShahin Elzoubi, O.
dc.contributor.authorPanagiotopoulos, Nikolaos T.
dc.contributor.authorStiehler, Martin E.
dc.contributor.authorSalonitis, Konstantinos
dc.contributor.authorGeorgarakis, Konstantinos
dc.date.accessioned2022-11-08T21:00:36Z
dc.date.available2022-11-08T21:00:36Z
dc.date.embargo2022-11-08
dc.date.issued2022-11-08
dc.description11th International Conference on Through-life Engineering Services - TESConf 2022, 8-9 November 2022, Cranfield UKen_UK
dc.description.abstractThe undulatory behaviour is a unique type of mechanical response that was recently observed for metallic glass foils in geometric confinement. It is manifested when normal load is applied on the top of an arc-shaped thin foil of metallic glass; the foil then deforms elastically and its shape changes by progressively increasing the number of formed sinusoidal arcs. This behaviour results from a combination of successive elastic bending and buckling events and can be utilized for developing novel types of non-linear springs. In this work, the undulatory behaviour of a Ni-Fe-Si-B-Mo metallic glass foil has been systematically studied and compared with that of the previously reported Fe-Cr-Si-B foil. The results indicate that the alloy composition and the foil thickness can significantly affect the load required for the formation of the harmonic undulations. The initial geometry of the formed sinusoidal arc including its amplitude and boundary length, can also be used to tune the load and displacement response of the foils. Upon unloading, the foil returns to its initial shape, as long as the loading remains in the elastic deformation range of the metallic glass. The findings suggest that the undulatory behaviour of thin metallic glass foils can be potentially exploited for a wide range of engineering applications including micro-springs, sensors, actuators, and shock absorbers.en_UK
dc.description.sponsorshipDMG Morien_UK
dc.identifier.citationShahin Elzoubi O, Panagiotopolous NT, Stiehler M, et al., (2022) On the undulatory behaviour of metallic glass foils: a novel spring-type behaviour. In: 11th International Conference on Through-life Engineering Services - TESConf 2022, 8-9 November 2022, Cranfield UK, Paper number 7682en_UK
dc.identifier.urihttps://dspace.lib.cranfield.ac.uk/handle/1826/18681
dc.language.isoenen_UK
dc.publisherCranfield Universityen_UK
dc.relation.ispartofseriesTESConf2022;7682
dc.rightsAttribution 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.subjectmetallic glass foilsen_UK
dc.subjectundulatory behaviouren_UK
dc.subjectbucklingen_UK
dc.subjectflat micro-springsen_UK
dc.titleOn the undulatory behaviour of metallic glass foils: a novel spring-type behaviouren_UK
dc.typeConference paperen_UK

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11th International Conference on Through-life Engineering Services 2022