Abstract
A study has been made of the fatigue behaviour of carbon/Kevlar-49/epoxy hybrid composites. Stress-life data have been obtained for both unidirectional and [(±45, 0, 0)2]s laminates in repeated tension and compression-tension cycling tests at various values of the stress (or R) ratio. Goodman (constant life) diagrams are presented for the unidirectional composites which indicate that the fatigue resistance of hybrid mixtures varies linearly with composition. The presence of the Aramid fibre, whose natural resistance to compression loads is suspect, does not appear to exert any unexpected damaging influence on the response of the hybrids either in tensile or tension-compression loading. This is also true of the behaviour of hybrid laminates containing plies at an angle to the main loading direction.
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Fernando, G., Dickson, R.F., Adam, T. et al. Fatigue behaviour of hybrid composites. J Mater Sci 23, 3732–3743 (1988). https://doi.org/10.1007/BF00540521
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DOI: https://doi.org/10.1007/BF00540521