SH wave propagation in joined half-spaces composed of elastic metamaterials

Xiaona Shi, Haisheng Shu, Haiyong Zhou, Lei Zhao, Ru Liu, Shuowei An, Jie Zhu

Research output: Journal article publicationJournal articleAcademic researchpeer-review

2 Citations (Scopus)

Abstract

Based on the effective-medium theory, the propagation of a shear horizontal (SH) wave in joined half-spaces composed of elastic metamaterials (EMMs) is investigated. From the dispersion relations, the effects of negative effective-medium parameters on the properties of a SH wave traveling near the interface are analyzed in detail. It is found that a SH wave can always appear and travel along the interface under specific effective-parameter combinations no matter whether the effective transverse wave velocity is imaginary or real. This is significantly different from the classical case (joined half-spaces composed of natural media), and the existence of these SH interfacial wave modes may have important impacts on EMM-based SH wave manipulation, especially wave isolation and object protection.
Original languageEnglish
Article number215104
JournalJournal of Applied Physics
Volume122
Issue number21
DOIs
Publication statusPublished - 7 Dec 2017

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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