POTENTIAL OF FILAMENT WOUND COMPOSITES

Abstract

Analysis was directed toward obtaining a quantitative estimate of the residual stresses resulting from curing of a glass monofilament encased in a concentric cylinder of resin. As the composite is cured, in general, it develops residual tensile stresses which will add to those produced by the external loading to initiate cracks in the resin. These cracks will expose the surface of the fiber and provide sites for fracture initiation in the composite. The stresses at the interface of filament and resin were analyzed. The axial stress in the resin will be the decisive stress to initiate crack in the resin in a direction perpendicular to the axis of the composite. This will break the resin into lengths which will depend upon the shear strength of the resin. The optimum design of the composite is shown as a function of the resin content and glass content. (Author)

Document Details

Document Type
Technical Report
Publication Date
May 01, 1961
Accession Number
AD0256657

Entities

People

  • B. Duft
  • S. Dharmarajan
  • W. Otto

Tags

DTIC Thesaurus Topics

  • Composite Materials
  • Fibers
  • Filaments
  • Materials
  • Mechanical Properties
  • Monofilaments
  • Residual Stress
  • Residuals
  • Shear Strength
  • Stresses
  • Tensile Stress

Fields of Study

  • Materials science

Readers

  • Electrical Engineering
  • Reinforced Composite Materials
  • Structural Health Monitoring of Composite Structures.