Mechanically induced waves in metallic glass foils

N. T. Panagiotopoulos, M. A. Yousfi, K. Georgarakis, A. R. Yavari

    Research output: Contribution to journalArticlepeer-review

    4 Citations (Scopus)

    Abstract

    The response of vitrified metallic arc foils under normal load is studied. Application of normal load on an initial arc shaped vitrified metallic foil is followed by multiplication of the initial arc. A sinusoidal mathematical expression can be used for the description of the produced harmonic undulations. The number of the formed waves increases as the displacement increases. Therefore, this undulatory behavior of the vitrified foils can be exploited as a flat spring with multiple spring constants. For comparison crystalline foils were tested. The enormous elastic region of vitrified alloys allows this undulatory response to occur extensively while plastic deformation is unavoidable when crystalline foils are used. Exploiting the metallic glass characteristics, the predefined extrema positions of the formed undulations and the mechanical characteristics of the vitrified foils a new type of electromechanical switch is suggested.

    Original languageEnglish
    Pages (from-to)1110-1114
    Number of pages5
    JournalMaterials and Design
    Volume90
    DOIs
    Publication statusPublished - 2016

    Keywords

    • Buckling
    • Electromechanical switch
    • Flat springs
    • Metallic glasses
    • Undulatory response
    • Vitrified metallic foils

    ASJC Scopus subject areas

    • Mechanical Engineering
    • Mechanics of Materials
    • Materials Science(all)

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