Damage Characteristics in Notched Carbon Fiber Composites Subjected to Fatigue Loading

Abstract

Several destructive and non-destructive methods were used to study the effect of ab sorbed moisture and/or heat on the tension-compression fatigue properties of notched, 0°/±45°, carbon fiber reinforced plastic laminates. The main objective was the understanding of the nature of fatigue damage around notches (sharp slits and circular holes), under hot and/or wet conditions. The fatigue performance of the notched laminates was assessed mainly by means of residual strength measurements. It was found that the shape and extent of fatigue damage around the notches were highly dependent upon the environments considered. Furthermore, it was shown that the residual strength or fatigue life depended upon the lay-up for a given environment.

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Damage Characteristics in Notched Carbon Fiber Composites Subjected to Fatigue Loading—Environmental Effects

Abstract

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