A Comparison of the Fatigue Performance of Woven and Non-Woven CFRP (carbon Fibre Reinforced Plastics)

Abstract

Static and fatigue tests were carried out at room temperature on CFRP laminates with five layups, of both woven and nonwoven CFRP. S-N diagrams were produced for both zero tension and reversed axial loading. Damage development was monitored by optical microscopy, ultrasonic C scanning, video recording and infrared thermography. In non-woven material, notched coupons under fatigue loading did not show the notch sensitivity that was so significant under static loading. However in woven material, because of the additional fatigue degradation processes associated with tow crossover points in the weave, holed coupons never quite achieved notch insensitivity in fatigue.

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1985
Accession Number
ADA188070

Entities

People

  • B. B. Moore
  • P. T. Curtis

Organizations

  • Royal Aircraft Establishment

Tags

Communities of Interest

  • Advanced Electronics
  • Space

DTIC Thesaurus Topics

  • Aircrafts
  • Carbon Fibers
  • Composite Materials
  • Compressive Strength
  • Failure Mode And Effect Analysis
  • Fatigue Tests (Mechanics)
  • Fiber Reinforced Polymers
  • Laminates
  • Materials
  • Materials Processing
  • Materials Testing
  • Mechanical Working
  • Notch Sensitivity
  • Plastics
  • Reinforced Plastics
  • Static Tests
  • Tensile Strength

Fields of Study

  • Materials science

Readers

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