Interface Effects on Attenuation and Phase Velocities in Composites,

Abstract

Much current practical interest exists concerning wave propagation through a composite medium with a random distribution of inclusions: particles, flakes, long continuous or chopped fibers in a homogeneous matrix. Several theoretical studies report wave speeds and attenuation of coherent plane waves propagating through an elastic homogeneous medium containing reinforcing particles or fibers. All theses studies assume that the interface between the matrix and the inclusion is sharply defined. Also, it is mostly assumed that the inclusion is perfectly bonded to the matrix. The present study, analyzes the problem of damping in metal-matrix composites when there is an interface layer through which the inclusion property changes continuously to that of the matrix.

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Document Details

Document Type
Technical Report
Publication Date
Aug 01, 1986
Accession Number
ADA172134

Entities

People

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

Organizations

  • University of Colorado Boulder

Tags

DTIC Thesaurus Topics

  • Attenuation
  • Civil Engineering
  • Composite Materials
  • Elastic Properties
  • Elastic Waves
  • Engineering
  • Epoxy Composites
  • Frequency
  • Inclusions
  • Long Wavelengths
  • Materials
  • Mechanical Engineering
  • Phase Velocity
  • Plane Waves
  • Scattering
  • Scattering Cross Sections
  • Secondary Waves

Readers

  • Mechanical Engineering/Mechanics of Materials.
  • Structural Health Monitoring of Composite Structures.
  • Wave Propagation and Nonlinear Chaotic Dynamics.