Accession Number:

ADA188070

Title:

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

Descriptive Note:

Technical rept.

Corporate Author:

ROYAL AIRCRAFT ESTABLISHMENT FARNBOROUGH (UNITED KINGDOM)

Personal Author(s):

Report Date:

1985-06-01

Pagination or Media Count:

101.0

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.

Subject Categories:

  • Laminates and Composite Materials
  • Plastics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE