Plane-wave response of an elastic chiral solid slab sandwiched between achiral solid half-spaces

Michael J. Elphinstone, Akhlesh Lakhtakia

Research output: Contribution to journalArticlepeer-review

22 Scopus citations

Abstract

Considered in this paper are two boundary-value problems: first, a plane wave incident upon a planar interface separating an achiral elastic half-space from a chiral elastic half-space; second, a plane wave incident upon a chiral slab interposed between two achiral elastic solid half-spaces. The inability of the achiral solid medium to support the microrotation field and the couple-stress dyadic provides the option of two distinct sets of boundary conditions at achiral/chiral interfaces. It is observed from numerical computations that using either set of boundary conditions in either of the two boundary-value problems results in the satisfaction of the principle of conservation of energy. Thus, it appears that the physically proper set of boundary conditions for a chiral/achiral interface may have to be decided experimentally.

Original languageEnglish (US)
Pages (from-to)617-627
Number of pages11
JournalJournal of the Acoustical Society of America
Volume95
Issue number2
DOIs
StatePublished - Jan 1 1994

All Science Journal Classification (ASJC) codes

  • Arts and Humanities (miscellaneous)
  • Acoustics and Ultrasonics

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