Modeling the Damping Behavior of Composites Using FEM.

Abstract

The damping behavior of Aluminum-Epoxy composites has been successfully predicted by using the finite element method. It was shown that the loss factor of a given composite depends on morphology and volume percent of component phases. For a given volume percent of Aluminum or Epoxy, the loss factor is found to increase with an increase in relative particle size. This was attributed to the ability of the high damping epoxy phase to damp/deform relatively freely when the particle size was increased. A 3-D plot with loss factor, relative particle size, and volume percent of Aluminum as the parameters was constructed which clearly demonstrates the effect of particle size and volume percent of phases on the damping behavior of epoxy/aluminum composites.

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1996
Accession Number
ADA315460

Entities

People

  • A. Nanavaty
  • J. G. Rao
  • K. S. Kannan
  • S. A. Srinivasan
  • S. Ankem

Organizations

  • University of Maryland

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Aluminum
  • Composite Materials
  • Computer Programs
  • Differential Equations
  • Epoxy Composites
  • Finite Element Analysis
  • Geometry
  • Laminates
  • Materials
  • Materials Science
  • Materials Testing
  • Mechanics
  • Micromechanics
  • Modulus Of Elasticity
  • Particle Size
  • Three Dimensional
  • Two Dimensional

Fields of Study

  • Materials science

Readers

  • Mathematics or Statistics
  • Reinforced Composite Materials
  • Structural Dynamics.