This work describes the effect that stacking sequence lay‐ups have on the static and cyclic fatigue properties of T300/914 auxetic carbon/epoxy composites. Two laminate composites [±20]2S and [±25]2S providing a theoretical NPR effect through the thickness have been subjected to quasi‐static and cyclic fatigue under 3‐point bending. The static tests have shown that the stiffness and the maximum failure load decrease with increasing fibre orientation angles for the laminates. The fatigue tests also show that the stiffness degradations versus the number of cycles occur on tree stages, with significant energy dissipation recorded for the two auxetic specimens.

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This work is concerned with the influence of carbon fibre, resin types and fibre volume fraction on the through the thickness Poisson's ratio of composite laminates. Different types of carbon fibres in various resins with several fibre volume fractions ranging between 65 and 80% are analysed to show the effect of each parameters on the values of the Poisson's ratios ν13 of the laminates balanced of the type [±θ]2S.