T-Matrix Formulation to Study the Frequency Dependent Properties of Absorbing Materials.

Abstract

A scattering matrix theory is presented for studying the multiple scattering of both longitudinal and transverse elastic waves in a medium containing a random distribution of inclusions or voids of arbitrary shape. A statistical analysis with QCA and Percus-Yevick pair correlation function is then employed to obtain expressions for the average amplitudes of the coherent fields which may be solved to yield the bulk or effective properties of the inhomogeneous medium. Suggestions for incorporating CPA in conjunction with QCA so that materials with dense concentration of inclusions can be considered are also given. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Jan 15, 1982
Accession Number
ADA113914

Entities

People

  • Vasundara V. Varadan
  • Vijay K. Varadan

Organizations

  • Ohio State University

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Acoustic Properties
  • Aspect Ratio
  • Bessel Functions
  • Bodies Of Revolution
  • Differential Equations
  • Elastic Properties
  • Elastic Waves
  • Electromagnetic Scattering
  • Electromagnetic Wave Propagation
  • Geometry
  • Helmholtz Equations
  • Integrals
  • Materials
  • Mechanics
  • Plane Waves
  • Wave Functions
  • Wave Propagation

Fields of Study

  • Physics

Readers

  • Electromagnetic Wave Scattering and Antenna Radiation Engineering
  • Materials Science and Engineering.