NiTi SMA Wires Coupled with Kevlar Fabric: a Real Application of an Innovative Aircraft LE Slat System in SMAHC Material

Guida, Michele; Marulo, Francesco; Russo, Salvatore

doi:10.1007/s10443-017-9618-4

Cited by 6 publications

(1 citation statement)

References 19 publications

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“…Indeed, additional components can be added to the composite, increasing the impact resistance without compromising the desired mechanical properties of the resulting “hybrid” composite, such as graphene nanolayers, single and multi-walled carbon nanotubes, hollow fibres, and through-the-thickness reinforcement [12,13]. Among the possible solutions, composites can be hybridised by embedding shape memory alloys characterised by a superelastic behaviour, resulting in an increase of the impact damage resistance [14,15].…”

Section: Introductionmentioning

confidence: 99%

Analysis of the Impact Dynamics of Shape Memory Alloy Hybrid Composites for Advanced Applications

et al. 2019

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In this work, the behaviour of thermoplastic composites and Shape Memory Alloy Hybrid Composites (SMAHCs) for aeronautical applications is analysed and compared by means of findings from numerical analyses and experimental tests. At first, experimental tests are performed by using a drop tower facility on both carbon fibre reinforced plastic samples and Carbon Fibre Reinforced Plastic (CFRP) samples hybridized with shape memory alloy materials. The materials properties and the different lower velocity impacts behaviours are simulated and validated by means of numerical models discretized in LS-Dyna explicit solver. For both configurations, the deformation mechanism for low intensity impacts, the absorbed energy, and the effect of rebounding upon the velocity change, and hence the amount of force, are investigated. Then, a configuration is prepared to withstand higher-energy impacts. Finally, the numerical analysis is extended for an innovative layup adapted on an aeronautical structure, which is subjected to the bird-strike phenomenon at 180 m/s and with an impacting mass of 1.8 kg according to the airworthiness requirements. In this study, SMAHCs are used to improve the composite impact response and energy absorption thanks to the superelastic effect.

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Section: Introductionmentioning

confidence: 99%