In Situ Fault Detection by the Hybrid Ray Mode Method.

Abstract

The objective of this research effort has been to develop algorithms for in situ location, by ultrasound, of flaws in plates or laminated layered materials. Achieving this objective requires detailed knowledge of the excitation, propagation, scattering and detection of high frequency sound waves in the flawed environment. Based on an understanding of these fundamental wave phenomena, one may then attempt to construct analytical models with accompanying algorithms, so as to parametrize the Nonlinear Differential Equation problem in terms of good observables.

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Document Details

Document Type
Technical Report
Publication Date
Feb 29, 1988
Accession Number
ADA195226

Entities

People

  • L. B. Felsen

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Acoustic Propagation
  • Air Force
  • Born Approximations
  • Computer Science
  • Coordinate Systems
  • Detection
  • Doppler Effect
  • Elastic Waves
  • Engineering
  • Materials
  • Observation
  • Plane Waves
  • Scattering
  • Sound Waves
  • Two Dimensional
  • Wave Phenomena
  • Wave Propagation

Fields of Study

  • Physics

Readers

  • Atmospheric Science / Meteorology, specifically Wind Wave Turbulence.
  • Computational Fluid Dynamics (CFD)
  • Structural Health Monitoring of Composite Structures.