Phase Velocity and Attenuation of Plane Elastic Waves in a Particle-Reinforced Composite Medium,

Abstract

Our study considered effective-plane-wave propagation, both longitudinal and shear, through a medium containing a random distribution of spherical inclusions. We assumed that the particles and matrix are separated by a thin layer of elastic material with different properties. For some systems, we predict measurable effects for the thin layers. Especially, we considered Lead/epoxy and Silicon Carbide/Aluminum. The object of this study was to explore the practicality of using ultrasound to characterize properties of interface layers. Ultrasound is a practical tool for measuring properties of, and characterizing the state of, a material with microstructure (or changes in microstructure).

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Document Details

Document Type
Technical Report
Publication Date
Aug 01, 1987
Accession Number
ADA189414

Entities

People

  • A. H. Shah
  • H. M. Ledbetter
  • S. K. Datta
  • Y. Shindo

Organizations

  • University of Colorado Boulder

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Composite Materials
  • Elastic Materials
  • Elastic Waves
  • Engineering
  • Epoxy Composites
  • Frequency
  • Long Wavelengths
  • Materials
  • Materials Science
  • Mechanical Engineering
  • Phase Velocity
  • Plane Waves
  • Secondary Waves
  • Silicon Carbide
  • Wave Propagation
  • Waves

Readers

  • Electromagnetic Wave Scattering and Antenna Radiation Engineering
  • Reinforced Composite Materials
  • Systems Analysis and Design