Experiments on Carbon Fibre Reinforced Plastic Tubes in Torsion,

Abstract

An experimental programme has been carried out on the torsional properties of carbon fibre reinforced plastic tubes. Two laminate patterns were investigated: the first had equal numbers of layers with the fibres at +45 and -45 degrees, whilst the second had equal numbers of layers with the fibres at +30, -30 and 90 degrees, all angles being measured with respect to a longitudinal generator of a tube. The tubes had various wall thicknesses, the thinner ones being designed to fail by torsional buckling and the thicker ones to undergo a material strength failure. For the buckling failures, a significant difference was observed between the critical values of the torque for clockwise and anti-clockwise loadings: this difference was related to the fibre directions in the outer layer. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Feb 01, 1977
Accession Number
ADA049207

Entities

People

  • Brian C. Hoskin
  • Robin Ellis

Tags

Communities of Interest

  • Air Platforms
  • Ground and Sea Platforms
  • Weapons Technologies

DTIC Thesaurus Topics

  • Aeronautical Engineering
  • Aeronautics
  • Carbon Fiber Reinforced Polymer
  • Carbon Fibers
  • Composite Materials
  • Fiber Reinforced Polymers
  • Fibers
  • Laminates
  • Materials Laboratories
  • Materials Processing
  • Mechanical Engineering
  • Mechanical Properties
  • Mechanics
  • Modulus Of Elasticity
  • Reinforced Plastics
  • Shear Modulus
  • Universities

Readers

  • Fluid Dynamics.
  • Reinforced Composite Materials
  • Structural Dynamics.