STATIC AND FATIGUE TEST PROPERTIES FOR WOVEN AND NONWOVEN S-GLASS FIBERS

Abstract

The static and dynamic properties of alumino-silicate S-glass prepreg materials were investigated. Utilizing a series of process fabrication parameters, solid laminates, sandwich beams. Tubular specimens were fabricated by fluid pressure (autoclave techniques. The ultimate strengths and fatigue endurance limits of the specimens were determined over an ambient temperature range of minus 65F to 160F. The effects of actual weather, artificial weathering and condensing humidity on structural properties were also determined. A means of reducing room temperature fatigue data on a statistical basis was developed to account for the processing and environmental parameters. Design properties for the materials in helicopter rotor applications are presented in the form of S-N curves.

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Document Details

Document Type
Technical Report
Publication Date
Apr 01, 1969
Accession Number
AD0688971

Entities

People

  • Martin B. Cutler
  • Robert L. Pinckney

Organizations

  • Boeing Rotorcraft Systems

Tags

Communities of Interest

  • Advanced Electronics
  • Air Platforms
  • C4I

DTIC Thesaurus Topics

  • Aircrafts
  • Airframes
  • Composite Materials
  • Fabrication
  • Fatigue Tests (Mechanics)
  • Glass Fibers
  • Laminates
  • Material Degradation Processes
  • Materials
  • Materials Processing
  • Materials Testing
  • Measurement
  • Mechanical Working
  • Orientation (Direction)
  • Shear Modulus
  • Tensile Strength
  • Test Methods

Fields of Study

  • Materials science

Readers

  • Materials Science (Mechanical Engineering).
  • Reinforced Composite Materials
  • Thermal Physics or Thermal Science.