Volume 105, Issue 5 e70087
ORIGINAL PAPER

Effect of coated hard sphere-filled metacomposite layer on Love wave propagation in an orthotropic half-space

Sourav Kumar Panja

Sourav Kumar Panja

Department of Mathematics, Jadavpur University, Kolkata, West Bengal, India

Department of Mechanical Engineering, Mahindra University, Telangana, India

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Subhas Chandra Mandal

Subhas Chandra Mandal

Department of Mathematics, Jadavpur University, Kolkata, West Bengal, India

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Eduard-Marius Craciun

Corresponding Author

Eduard-Marius Craciun

Faculty of Mechanical, Industrial and Maritime Engineering, Ovidius University of Constanta, Constanta, Romania

Academy of Romanian Scientists, Bucharest, Romania

Correspondence

Eduard-Marius Craciun, Faculty of Mechanical, Industrial and Maritime Engineering, Ovidius University of Constanta, Constanta, Romania.

Email: [email protected]

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First published: 14 May 2025

Abstract

An effective medium model is presented to study Love waves in an elastic metacomposite layer of coated hard spheres on an orthotropic half-space, inspired by recent developments in metasurface studies. Using specific examples, the model provides explicit equations for phase velocity and attenuation coefficients. The ramifications of these discoveries are examined both with and without the effect of damping on the local resonance of the hard spheres that are embedded. The paper provides a thorough comparison with previous findings for Love waves in an elastic half-space coated with a thin elastic layer, highlighting the effects of metasurfaces, orthotropy, and damping on the bandgap structure of Love waves. The conclusions drawn from this analysis shed important light on how surface elastic waves behave in locally resonant metamaterials.

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