Diffraction of waves and stress intensity factors in a cracked layered composite

L. M. Keer, W. C. Luong

Research output: Contribution to journalArticlepeer-review

23 Scopus citations


Elastodynamic stress intensity factors are computed for diffraction of antiplane shear waves by a crack in a layered composite. The crack is normal to and bisected by the midplane of the layer. Both cases of a partially broken layer and a completely broken layer are studied. Integral transform techniques are used to formulate the problem as a singular integral equation. The propagation of symmetric modes (Love waves) is studied numerically, and stress intensity factors are obtained for several values of frequency, geometrical parameters, and material constants. The amplitude ratios of the incident waves to incident plus scattered waves at a large distance from the crack are also calculated.

Original languageEnglish (US)
Pages (from-to)1681-1686
Number of pages6
Journaljournal of the Acoustical Society of America
Issue number6
StatePublished - Dec 1974
Externally publishedYes

ASJC Scopus subject areas

  • Arts and Humanities (miscellaneous)
  • Acoustics and Ultrasonics


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