Carbon nanotubes (CNT) and their mechanical properties were intensively investigated since the early 1990s. The main research was focused on using of CNT to reinforce polymer and ceramic matrices but the interest in metallic-CNT composites was grown considerably in the last decade. Such composites could have the potential applications in aerospace, automotive and sport industries where the light weight combined with high stiffness and strength properties is desired. Different non-destructive techniques developed for the characterisation of advanced composite material properties is adapted for the testing of nanocomposite samples with small geometrical dimensions. Static approach using a three-point-bending test and two dynamic methods: impulse excitation method and inverse technique based on vibration tests were successfully applied for the non-destructive material properties characterisation of aluminium alloys with different CNT volume content. The dissipative material properties were characterised by a structural loss factor obtained by the peak-picking method analysing the frequency response functions of specimens in the points of resonance.