Mechanically induced waves in metallic glass foils

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

doi:10.1016/j.matdes.2015.10.149

Mechanically induced waves in metallic glass foils

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

Research output: Contribution to journal › Article › peer-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 language	English
Pages (from-to)	1110-1114
Number of pages	5
Journal	Materials and Design
Volume	90
DOIs	https://doi.org/10.1016/j.matdes.2015.10.149
Publication status	Published - 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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title = "Mechanically induced waves in metallic glass foils",

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.",

keywords = "Buckling, Electromechanical switch, Flat springs, Metallic glasses, Undulatory response, Vitrified metallic foils",

author = "Panagiotopoulos, {N. T.} and Yousfi, {M. A.} and K. Georgarakis and Yavari, {A. R.}",

year = "2016",

doi = "10.1016/j.matdes.2015.10.149",

language = "English",

volume = "90",

pages = "1110--1114",

journal = "Materials and Design",

issn = "0264-1275",

publisher = "Elsevier BV",

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TY - JOUR

T1 - Mechanically induced waves in metallic glass foils

AU - Panagiotopoulos, N. T.

AU - Yousfi, M. A.

AU - Georgarakis, K.

AU - Yavari, A. R.

PY - 2016

Y1 - 2016

N2 - 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.

AB - 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.

KW - Buckling

KW - Electromechanical switch

KW - Flat springs

KW - Metallic glasses

KW - Undulatory response

KW - Vitrified metallic foils

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EP - 1114

JO - Materials and Design

JF - Materials and Design

SN - 0264-1275

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Mechanically induced waves in metallic glass foils

Abstract

Keywords

ASJC Scopus subject areas

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