Comparative statistical analysis of the fatigue of composites under different modes of loading

Comparative statistical analysis of the fatigue of composites under different modes of loading - 32(24), p.6495-65031997 .

This paper deals with fatigue testing of a 16-ply aerospace laminate based on T800 Toray carbon fibres in Narmco 5245 epoxy resin, under diverse loading regimes including constant-stress bending and tension and block loading in tension-tension and tension-compression. Statistical analysis of the results has been performed by means of the extreme value theory, confirming a Weibull domain of attraction for each sample distribution. This procedure permits the assessment of low probabilities of failure, which can be used as characteristic values for practical design.