Ultrasonic Nondestructive Testing of Composite Materials.

Abstract

The dispersion of elastic waves (ultrasonic waves) in fiber-reinforced materials is investigated by experimental and theoretical methods. A dependable continuous-wave-phase-comparison technique is developed along with the method of phase spectrum to determine the dispersion characteristics, and phase and group velocities in composites. Theoretically, the dispersion relation is determined from the analysis of multiple scattering of elastic waves with parallel cylinders. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1977
Accession Number
ADA047487

Entities

People

  • Wolfgang Sachse
  • Yih-hsing Pao

Organizations

  • Cornell University

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Acoustics
  • Air Force
  • Applied Mechanics
  • Composite Materials
  • Continuous Waves
  • Elastic Waves
  • Engineering
  • Epoxy Composites
  • Geometry
  • Group Velocity
  • Materials Science
  • Mechanics
  • New York
  • Nondestructive Testing
  • Phase Velocity
  • Secondary Waves
  • Wave Propagation

Fields of Study

  • Physics

Readers

  • Atmospheric Science / Meteorology, specifically Wind Wave Turbulence.
  • Reinforced Composite Materials