Accession Number : ADA315460

Title :   Modeling the Damping Behavior of Composites Using FEM.

Descriptive Note : Final rept. 15 Aug 92-14 Aug 95,

Corporate Author : MARYLAND UNIV COLLEGE PARK

Personal Author(s) : Ankem, S. ; Kannan, K. S. ; Nanavaty, A. ; Rao, J. G. ; Srinivasan, S. A.

PDF Url : ADA315460

Report Date : JUN 1996

Pagination or Media Count : 41

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.

Descriptors :   *COMPOSITE MATERIALS, *FINITE ELEMENT ANALYSIS, *DAMPING, PARTICLE SIZE, MORPHOLOGY, PHASE, ALUMINUM, LOSSES, EPOXY COMPOSITES.

Subject Categories : Laminates and Composite Materials
      Numerical Mathematics
      Fluid Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE