On a new electromechanical switch using the reversible wavy elastic response of metallic glass ribbons - 01/12/17

Doi : 10.1016/j.crme.2017.07.005

Mohamed Abdelbasset Yousfi ^a,^{^⁎} , Cheima Ammari ^a, Khalil Hajlaoui ^a,^b , Nikolaos T. Panagiotopoulos ^c,^d, Konstantinos Georgarakis ^c,^e, Zoubeir Tourki ^a
^a Laboratoire de mécanique de Sousse LMS, ENISo, Université de Sousse, Technopole de Sousse, BP 264, Cité Erriadh, 4023 Sousse, Tunisia
^b Al Imam Mohammad Ibn Saud Islamic University (IMSIU), Saudi Arabia
^c SIMaP, Grenoble-INP, 38402 Saint-Martin-d'Hères cedex, France
^d University of Ioannina, Department of Physics, 45110 Ioannina, Greece
^e School of Aerospace, Transport and Manufacturing, Cranfield University, MK43 0AL, UK

^⁎Corresponding author.

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Abstract

For the first time, practical applications as an alarm device and automatic filling of an aquarium using an electromechanical switch manufactured from metallic glass (MG) ribbon is proposed. The elastic response of an initial arc-shaped MG ribbon-based Fe_90.65B_3.9Cr_2.75Si_2.7 is studied and exploited. Under the applied load F, the amorphous material exhibits a reversible elastic wavy response. During the elastic deformation and multiplication of harmonic undulations, a perfect linear contact between the waves and support is established. This contact position is the same for the pair waves, and can be employed to ensure the passage of an electric current, since the ribbon is Fe-based. The reversible elastic wavy response of MG ribbon can be used as an electromechanical switch. The lifespan of the ribbon used as a switch is also considered.

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Keywords : Metallic glass ribbon, Reversible elastic wavy response, Practical electromechanical switch applications, Lifespan