Accession Number : ADP004702

Title :   Improvement of Damping in Fiber Reinforced Polymer Composites,

Corporate Author : IDAHO UNIV MOSCOW DEPT OF MECHANICAL ENGINEERING

Personal Author(s) : Gibson,R. F. ; Suarez,S. A. ; Deobald,L. R.

Report Date : NOV 1984

Pagination or Media Count : 21

Abstract : This paper presents preliminary experimental results from a study of damping in aligned discontinuous fiber reinforced polymer composites. The experiments were conducted in order to verify a previously developed theoretical model, which predicted that discontinuous fiber reinforcement should enhance the shear-induced linear viscoelastic damping effect in the polymer matrix material. Data for graphite/epoxy and aramid/epoxy composites show that, is predicted, very low fiber aspect ratios are required to produce significant improvements in damping, and that damping also increases markedly with increasing vibration frequency at these low aspect ratios. (Author)

Descriptors :   *DAMPING, *FIBER REINFORCED COMPOSITES, *POLYMERS, VISCOELASTICITY, EPOXY COMPOSITES, EXPERIMENTAL DATA, CHARTS

Distribution Statement : APPROVED FOR PUBLIC RELEASE