AXIAL FATIGUE STRENGTH DEGRADATION OF CARBON FRP COMPOSITES AND E-GLASS FRP COMPOSITES

For civil engineering structures subject to cyclic loading, one important limit state in design is fatigue. Thus, a review of existing data determines the applicability to civil engineering structures. This review will focus on E-glass FRP and CFRP composites under tension-tension axial fatigue without environmental concerns. Test and material parameters which define the data are identified as R ratio, test frequency, load control, specimen shape, type of reinforcement, and resin. Fatigue life diagrams summarize the tension-tension axial fatigue data as normalized stress (maximum fatigue stress divided by ultimate tensile strength) vs. log of fatigue life. These plots, according to fiber reinforcement and resin, reveal distinct lower bounds to the data band, regardless of parameter combination. These lower bounds may be used in designing both E-glass FRP and CFRP composites for use in civil engineering structures conservatively estimating tension-tension axial fatigue strength. These lower bounds may be used until further studies refine the effects of individual parameters on fatigue life.

  • Availability:
  • Corporate Authors:

    University of Arizona, Tucson

    Department of Civil Engineering and Engineering Mechanics
    1209 E 2nd Street
    Tucson, AZ  United States  85721-0072

    University of Arizona, Tucson

    Drachman Institute, 819 E First Street
    Tucson, AZ  United States  85721
  • Authors:
    • Demers, C E
  • Conference:
  • Publication Date: 1998-1

Language

  • English

Media Info

  • Features: Figures; References;
  • Pagination: p. 86-92
  • Serial:
    • Volume: 1

Subject/Index Terms

Filing Info

  • Accession Number: 00762554
  • Record Type: Publication
  • ISBN: 1890743011
  • Files: TRIS
  • Created Date: Apr 27 1999 12:00AM