EFFECT OF FIBER MISALIGNMENT ON ELASTICITY MODULUS IN EXTENSION OF UNIDIRECTIONAL GLASS-REINFORCED PLASTICS,

Abstract

On the basis of the theory of laminated reinforced media with random original irregularities the effect of fiber misalignment on the elasticity modulus during the extension of unidirectional glass-reinforced plastics has been studied. It has been shown experimentally that comparatively low technological fiber misalignments can be the cause of a considerable change of the elasticity modulus. A model is proposed for determining the effect of fiber misalignment on Young's modulus; experiments on specimens with set regular fiber misalignment revealed good coincidence with theory. On the series-manufactured material AG-4S the effect of the preliminary strain of the fibers on the elasticity modulus was studied and the magnitude of optimum stretching was established. (Author)

Document Details

Document Type
Technical Report
Publication Date
Mar 26, 1969
Accession Number
AD0695348

Entities

People

  • G. G. Portnov
  • I. G. Zhigun
  • Yu. M. Tarnopolskii

Organizations

  • National Air and Space Intelligence Center

Tags

DTIC Thesaurus Topics

  • Composite Materials
  • Elastic Properties
  • Films
  • Glass Fiber Reinforced Plastics
  • Inorganic Materials
  • Materials
  • Misalignment
  • Modulus Of Elasticity
  • Plastics
  • Reinforced Plastics
  • Unidirectional

Readers

  • Materials Science and Engineering.
  • Reinforced Composite Materials