Accession Number : ADA296423

Title :   Analysis of Axial Damping in Segmented Constrained Layer Fibrous Composites.

Descriptive Note : Master's thesis,

Corporate Author : AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH

Personal Author(s) : Carver, Alan M.

PDF Url : ADA296423

Report Date : JUN 1995

Pagination or Media Count : 73

Abstract : The axial damping in segmented ply specimens is compared with that of continuous ply specimens. Axial damping increases in both designs as the free-edge transverse shear becomes more important. The axial damping of segmented specimens surpasses that of the unsegmented design when small segment aspect ratios are employed. This observed trend corresponds with earlier finite element models but fails to reach magnitudes considered practically important. Theories are presented concerning the role of damping mechanisms and techniques are suggested for improving axial damping without segmenting the plies. (MM)

Descriptors :   *VIBRATION, *COMPOSITE MATERIALS, *LAMINATES, *FIBER REINFORCED COMPOSITES, *DAMPING, *AXIAL LOADS, POLYMERS, FINITE ELEMENT ANALYSIS, TENSILE STRESS, STIFFNESS, VISCOELASTICITY, DISPLACEMENT, THESES, RUBBER, BENDING, STRUCTURAL RESPONSE, SHEAR STRESSES, PREPREGS, ADHESIVES, GRAPHITE EPOXY COMPOSITES.

Subject Categories : Laminates and Composite Materials
      Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE