Twin-waves propagation phenomena in magnetically-coupled structures

The use of magnetic dipoles embedding in an elastic support introduces long-range interaction forces. This is a completely new paradigm in structural mechanics, classically based on local short-range particle interaction. The features of long-range forces produce very new mechanical coupling effects...

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Bibliographic Details
Published in:Procedia engineering 2017, Vol.199, p.711-716
Main Authors: Mezzani, F., Coppo, F., Pensalfini, S., Roveri, N., Carcaterra, A.
Format: Article
Language:English
Subjects:
elastic metamaterials
long-range interaction
metamaterials
wave propagation
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Summary:The use of magnetic dipoles embedding in an elastic support introduces long-range interaction forces. This is a completely new paradigm in structural mechanics, classically based on local short-range particle interaction. The features of long-range forces produce very new mechanical coupling effects. This paper examines the case in which two identical rod-like structures, each with a dipole distribution embedded, vibrate side by side. Waves generated in one of the rods propagate also in the second and vice versa creating a new effect we name twin-waves. The present investigation unveils the existence of an infinite set of numerable waves even in one-dimensional infinite structures, a new and unusual behaviour in classical waveguides. The physics behind this phenomenon is further investigated also by numerical simulations.
ISSN:1877-7058
1877-7058
DOI:10.1016/j.proeng.2017.09.016