Journal of Materials Science

, Volume 25, Issue 2, pp 1313–1317 | Cite as

Rate-dependent fatigue of aramid-fibre/carbon-fibre hybrids

  • H. Harel
  • J. Aronhime
  • K. Schulte
  • K. Friedrich
  • G. Marom
Papers

Abstract

A previously observed hybrid effect in the flexural fatigue behaviour of aramid-fibre (A)/carbon-fibre (C) reinforced hybrid is re-examined as far as this effect can be attributed to the loading-rate dependence of the hybrids. This research comprises an investigation of the fatigue behaviour of composites distinguished by its combination of experimental conditions, including the materials, loading mode and rate of loading. Unidirectional carbon-fibre/aramidfibre reinforced hybrids were tested in flexure under a range of strain rates, in order to investigate the hybridization effect on the rate dependent fatigue behaviour. The ACA sandwich hybrid, whose fatigue performance is far better than that of the CAC hybrid, and which exhibits an improvement even with respect to the aramid parent composite, exhibits a clear strain-rate dependence. The different performances of the two hybrids are ascribed to the different rate dependences of the compressive and tensile strength of the parent C and A composites.

Keywords

Fatigue Fatigue Life Fatigue Behaviour Static Strength Fatigue Performance 

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Copyright information

© Chapman and Hall Ltd 1990

Authors and Affiliations

  • H. Harel
    • 1
  • J. Aronhime
    • 1
  • K. Schulte
    • 2
  • K. Friedrich
    • 3
  • G. Marom
    • 1
  1. 1.Casali Institute of Applied Chemistry, Graduate School of Applied Science and TechnologyThe Hebrew University of JerusalemJerusalemIsrael
  2. 2.Institute for Materials ScienceD.F.V.L.R.Cologne 90Germany
  3. 3.Polymer and Composites GroupTechnical University Hamburg-HarburgHamburg 90Germany

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