Applications of Theories of Generalized Cosserat Continua to the Dynamics of Composite Materials

Abstract

It is shown that the Cosserat continuum and the theory of elasticity with micro-structure can be interpreted as analytical models describing the dynamic behavior of a composite material. The nonclassical material constants are simply functions of the geometry and the classical constants of the two materials constituting the composite. The study of wave propagation in a laminated composite reveals that a more complex microstructure needs to be introduced in a continuum in order to describe adequately the dispersive character of (essentially) longitudinal waves.

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Document Details

Document Type
Technical Report
Publication Date
Oct 01, 1967
Accession Number
AD0660213

Entities

People

  • George Herrmann
  • Jan D. Achenbach

Organizations

  • Northwestern University

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Civil Engineering
  • Composite Materials
  • Crystal Lattices
  • Dynamics
  • Elastic Properties
  • Energy
  • Engineering
  • Equations
  • Equations Of Motion
  • Governments
  • Laminates
  • Materials
  • Mechanics
  • Military Research
  • New York
  • Potential Energy
  • United States

Readers

  • Structural Dynamics.
  • Structural Health Monitoring of Composite Structures.
  • Theoretical Analysis.