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

Michael J. Elphinstone, Akhlesh Lakhtakia

Research output: Contribution to journalArticle

22 Citations (Scopus)

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

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half spaces
slabs
plane waves
boundary conditions
boundary value problems
dyadics
conservation
Boundary Conditions
Waves
Value Problem
energy

All Science Journal Classification (ASJC) codes

  • Arts and Humanities (miscellaneous)
  • Acoustics and Ultrasonics

Cite this

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Plane-wave response of an elastic chiral solid slab sandwiched between achiral solid half-spaces. / Elphinstone, Michael J.; Lakhtakia, Akhlesh.

In: Journal of the Acoustical Society of America, Vol. 95, No. 2, 01.01.1994, p. 617-627.

Research output: Contribution to journalArticle

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